CN116924596B - Electrochemical device for sponge urban sewage treatment and treatment method thereof - Google Patents
Electrochemical device for sponge urban sewage treatment and treatment method thereof Download PDFInfo
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- CN116924596B CN116924596B CN202310623332.4A CN202310623332A CN116924596B CN 116924596 B CN116924596 B CN 116924596B CN 202310623332 A CN202310623332 A CN 202310623332A CN 116924596 B CN116924596 B CN 116924596B
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- 239000010865 sewage Substances 0.000 title claims abstract description 309
- 238000000034 method Methods 0.000 title claims abstract description 60
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 222
- 231100000719 pollutant Toxicity 0.000 claims abstract description 222
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 181
- 238000001914 filtration Methods 0.000 claims abstract description 31
- 230000015556 catabolic process Effects 0.000 claims abstract description 21
- 238000006731 degradation reaction Methods 0.000 claims abstract description 21
- 230000000593 degrading effect Effects 0.000 claims abstract description 11
- 230000001376 precipitating effect Effects 0.000 claims abstract description 8
- 238000001514 detection method Methods 0.000 claims description 79
- 238000003756 stirring Methods 0.000 claims description 47
- 230000008569 process Effects 0.000 claims description 44
- 239000000356 contaminant Substances 0.000 claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 239000003153 chemical reaction reagent Substances 0.000 claims description 12
- 239000002351 wastewater Substances 0.000 claims description 11
- 238000012544 monitoring process Methods 0.000 claims description 9
- 238000004062 sedimentation Methods 0.000 claims description 9
- 150000002500 ions Chemical class 0.000 claims description 7
- 239000003513 alkali Substances 0.000 claims description 6
- 230000001678 irradiating effect Effects 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 5
- 239000007850 fluorescent dye Substances 0.000 claims description 3
- 238000001215 fluorescent labelling Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 22
- 230000009286 beneficial effect Effects 0.000 description 11
- 238000013461 design Methods 0.000 description 11
- 238000013019 agitation Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 3
- 239000002585 base Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000010485 coping Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000855 fermentation Methods 0.000 description 2
- 230000004151 fermentation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004210 cathodic protection Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- KWLMIXQRALPRBC-UHFFFAOYSA-L hectorite Chemical compound [Li+].[OH-].[OH-].[Na+].[Mg+2].O1[Si]2([O-])O[Si]1([O-])O[Si]([O-])(O1)O[Si]1([O-])O2 KWLMIXQRALPRBC-UHFFFAOYSA-L 0.000 description 1
- 229910000271 hectorite Inorganic materials 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
- C02F2201/46105—Details relating to the electrolytic devices
- C02F2201/4612—Controlling or monitoring
- C02F2201/46125—Electrical variables
- C02F2201/46135—Voltage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention provides an electrochemical device for sponge urban sewage treatment and a treatment method thereof, comprising the following steps: the sewage filtering module is used for filtering pollutants with the volume larger than the preset volume in the sponge urban sewage to obtain first treated sewage; the sewage degradation module is used for degrading and precipitating organic matters in the first treated sewage to obtain second treated sewage; the electrochemical treatment module is used for guiding the second treated sewage into the electrolytic cell for electrolytic treatment to obtain third treated sewage; the sewage after the worry degradation is subjected to electrochemical treatment, specifically, the electrolysis voltage and the electrolysis time are set, the pollutants in the second treated sewage are subjected to electrolytic treatment one by one, the removal of organic matters in the sewage is realized, and the sewage treatment effect is ensured.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to an electrochemical device for sponge urban sewage treatment and a treatment method thereof.
Background
The sponge city is a new generation city rain and flood management concept, and the city can be like a sponge, has good elasticity in the aspects of adapting to environmental changes, coping with natural disasters caused by rainwater and the like, and can be also called as a 'water elasticity city'. The city can be like a sponge, has good elasticity in the aspects of adapting to environmental changes, coping with natural disasters and the like, and the international general term is 'low-influence development rainwater system construction', absorbs water, stores water, permeates water and purifies water during raining, and releases and utilizes the stored water when needed so as to realize free migration of rainwater in the city.
The sewage treatment modes in the sponge city are generally precipitation, fermentation, degradation and the like, so that heavy metal ions and organic matters in the sewage can be removed to a certain extent, but the organic matters contained in the urban sewage are rich in types, and the removal of the organic matters in the sewage can not be completely realized through simple fermentation and degradation, so that water pollution in a rainwater reservoir is caused.
Disclosure of Invention
The invention provides an electrochemical device for treating sponge urban sewage and a treatment method thereof, which realize the removal of organic matters in sewage and ensure the sewage treatment effect.
An electrochemical device for sponge municipal sewage treatment, comprising:
The sewage filtering module is used for filtering pollutants with the volume larger than the preset volume in the sponge urban sewage to obtain first treated sewage;
the sewage degradation module is used for degrading and precipitating organic matters in the first treated sewage to obtain second treated sewage;
and the electrochemical treatment module is used for guiding the second treated sewage into the electrolytic cell for electrolytic treatment to obtain third treated sewage.
Preferably, the sewage filtering module includes:
the first filtering unit is used for stirring the sponge municipal sewage before the first filtering screen and enabling the sponge municipal sewage to pass through the first filtering screen at a first speed to obtain first filtering sewage;
the second filtering unit is used for enabling the first filtered sewage to pass through the second filter screen at a second rate to obtain second filtered sewage;
and the outlet unit is used for flowing out the second filtered sewage from the outlet valve at a third speed to obtain the first treated sewage.
Preferably, the sewage degradation module comprises:
the degradation unit is used for guiding the first treated sewage into the chemical tank, adding a catalyst into the chemical tank and degrading the first treated sewage to obtain degraded sewage;
and the sedimentation unit is used for guiding the degradation sewage into the sedimentation tank to carry out sedimentation within a preset time to obtain second treatment sewage.
Preferably, the electrochemical treatment module comprises:
The PH value adjusting unit is used for adding alkali into the second treated sewage to adjust the PH value of the second treated sewage to 6-8, and then guiding the second treated sewage into the electrolytic cell;
A concentration detection unit for extracting a predetermined volume of sewage to be detected from the second treated sewage to determine a pollutant name and a concentration, and determining an electrolysis voltage and an electrolysis time for each pollutant based on the pollutant name and the concentration;
and the electrolysis unit is used for electrolyzing the second treated sewage from high to low according to the electrolysis voltage to obtain third treated sewage.
Preferably, the concentration monitoring unit includes:
the water quality analysis unit is used for carrying out water quality detection on the sewage to be detected and determining the names of pollutants in the sewage to be detected;
The wavelength determining unit is used for determining the first detection light wavelength of the pollutants according to the names of the pollutants, obtaining a first detection light wavelength set of all the pollutants, performing conflict detection on the first detection light wavelength set, and judging whether conflict exists among the first detection light wavelengths;
if yes, adjusting the wavelength of the first detection light with conflict to obtain the wavelength of the target detection light;
Otherwise, the first detection light wavelength set is used as the target detection light wavelength;
the quantity determining unit is used for adding a fluorescent reagent into the sewage to be detected according to the characteristics of the pollutants and the target detection light wavelength, and irradiating the sewage to be detected added with the fluorescent reagent according to the target detection light wavelength to obtain the corresponding initial fluorescence quantity and fluorescence position;
The quantity analysis unit is used for carrying out discrete analysis on the initial fluorescence quantity according to the fluorescence position and the standard position of the pollutant to obtain a plurality of groups of fluorescence position intervals, setting different weight values for the plurality of groups of fluorescence position intervals based on the standard position, and carrying out weighted calculation on the initial fluorescence quantity according to the weight values to obtain the target fluorescence quantity;
A concentration determining unit for determining the concentration of the contaminant according to the target fluorescence amount and the characteristics of the fluorescence-labeled ions in the contaminant;
the voltage determining unit is used for determining the voltage range of the pollutants according to the characteristics of the pollutants and judging whether the voltage ranges among the pollutants overlap or not;
If so, uniformly setting a common voltage range for pollutants with overlapping voltage ranges, selecting the optimal voltage from the common voltage range as an electrolysis voltage, and using the largest pollutant in the pollutants with overlapping voltage ranges
Otherwise, selecting the optimal voltage from the voltage range of the pollutant as the electrolysis voltage;
and the time determining unit is used for superposing the concentrations of the pollutants with the overlapped voltage ranges to obtain the final concentration, setting the corresponding electrolysis time by combining the electrolysis process characteristics of the pollutants with the overlapped voltage ranges, or setting the corresponding electrolysis time by combining the electrolysis process characteristics of the pollutants without the overlapped voltage ranges according to the concentrations of the pollutants without the overlapped voltage ranges.
Preferably, the electrolysis unit comprises:
The electrolytic cell unit comprises a first electrolytic cell and a second electrolytic cell, wherein the first electrolytic cell and the second electrolytic cell are obtained by dividing an integral electrolytic cell into two electrolytic cells with the same size, the first electrolytic cell and the second electrolytic cell are communicated with each other through a conducting pipe, the first electrolytic cell and the second electrolytic cell are respectively provided with a plurality of anode plates and cathode plates, the anode plates are connected with each other, the cathode plates are connected with each other, and the anode plates and the cathode plates are connected with a power supply;
the temperature control unit is arranged in the first electrolytic cell and the second electrolytic cell and is used for controlling the temperature of the first electrolytic cell and the second electrolytic cell in the electrolytic process;
The stirring unit is used for stirring the second treated sewage in the first electrolytic cell and the second electrolytic cell;
the control unit is used for determining the electrolysis voltage and the electrolysis time of the current pollutant, introducing second treated sewage into the first electrolytic tank, determining the optimal temperature for the electrolysis of the current pollutant according to the attribute of the current pollutant, determining the influence degree of stirring on the electrolysis of the current pollutant, setting the working time of the first electrolytic tank as the electrolysis time of the current pollutant, introducing the second treated sewage into the first electrolytic tank, setting the voltages of an anode plate and a cathode plate of the first electrolytic tank according to the electrolysis voltage of the current pollutant, electrolyzing the second treated sewage, determining the stirring rate according to the influence degree of stirring on the electrolysis of the current pollutant, monitoring the temperature of the second treated sewage in the electrolysis process, controlling the temperature of the second treated sewage to float up and down at the optimal temperature, introducing the second treated sewage into the second electrolytic tank to electrolyze the next pollutant after the electrolysis time of the current pollutant is reached, and circularly using the first electrolytic tank and the second electrolytic tank to electrolyze the second treated sewage until the third treatment of the pollutants is completed;
And the control unit is also used for leading clear water into the first electrolytic cell after the first electrolytic cell finishes the electrolysis of the current pollutant and leading the current pollutant into the second electrolytic cell, stirring the first electrolytic cell by the stirring unit, and leading the cleaned sewage out of the discharge port after the first electrolytic cell is cleaned.
An electrochemical treatment method for sponge urban sewage treatment, comprising the following steps:
S1: filtering pollutants with the volume larger than the preset volume in the sponge municipal sewage to obtain first treated sewage;
S2: degrading and precipitating organic matters in the first treated sewage to obtain second treated sewage;
S3: and introducing the second treated sewage into an electrolytic cell for electrolytic treatment to obtain third treated sewage.
Preferably, in S3, the second treated sewage is led into an electrolytic cell for electrolytic treatment to obtain a third treated sewage, which includes:
adding alkali into the second treated sewage to adjust the pH value of the second treated sewage to 6-8, and then introducing the second treated sewage into an electrolytic cell;
Extracting a preset volume of sewage to be detected from the second treated sewage to determine the name and concentration of the pollutants, and determining the electrolysis voltage and the electrolysis time of each pollutant based on the name and concentration of the pollutants;
and electrolyzing the second treated sewage from high to low according to the electrolysis voltage to obtain third treated sewage.
Preferably, the method for determining the name and concentration of the pollutant by extracting a predetermined volume of the wastewater to be detected from the second treated wastewater, and determining the electrolysis voltage and the electrolysis time for each pollutant based on the name and concentration of the pollutant, comprises:
performing water quality detection on the sewage to be detected, and determining the names of pollutants in the sewage to be detected;
Determining first detection light wavelengths of pollutants according to the names of the pollutants, obtaining a first detection light wavelength set of all the pollutants, performing conflict detection on the first detection light wavelength set, and judging whether conflict exists among the first detection light wavelengths;
if yes, adjusting the wavelength of the first detection light with conflict to obtain the wavelength of the target detection light;
Otherwise, the first detection light wavelength set is used as the target detection light wavelength;
adding a fluorescent reagent into the sewage to be detected according to the characteristics of the pollutants and the target detection light wavelength, and irradiating the sewage to be detected added with the fluorescent reagent according to the target detection light wavelength to obtain the corresponding initial fluorescence quantity and fluorescence position;
Performing discrete analysis on the initial fluorescence quantity according to the fluorescence positions and the standard positions of the pollutants to obtain a plurality of groups of fluorescence position intervals, setting different weight values for the plurality of groups of fluorescence position intervals based on the standard positions, and performing weighted calculation on the initial fluorescence quantity according to the weight values to obtain the target fluorescence quantity;
determining the concentration of the contaminant according to the target fluorescence quantity and the characteristics of the fluorescence labeling ions in the contaminant;
determining voltage ranges for the pollutants according to the characteristics of the pollutants, and judging whether the voltage ranges among the pollutants overlap;
If so, uniformly setting a public voltage range for pollutants with overlapping voltage ranges, and selecting the optimal voltage from the public voltage range as an electrolysis voltage, otherwise, selecting the optimal voltage from the voltage range of the pollutants as the electrolysis voltage;
And superposing the concentrations of the pollutants with the overlapped voltage ranges to obtain the final concentration, setting corresponding electrolysis time by combining the electrolysis process characteristics of the pollutants with the overlapped voltage ranges, or setting corresponding electrolysis time by combining the electrolysis process characteristics of the pollutants without the overlapped voltage ranges according to the concentrations of the pollutants without the overlapped voltage ranges.
Preferably, the second treated sewage is electrolyzed from high to low according to the electrolysis voltage to obtain third treated sewage, which comprises the following steps:
The electrolytic cell comprises a first electrolytic cell and a second electrolytic cell, the first electrolytic cell and the second electrolytic cell are obtained by dividing the whole electrolytic cell into two electrolytic cells with the same size, the first electrolytic cell and the second electrolytic cell are communicated with each other through a conducting pipe, the first electrolytic cell and the second electrolytic cell are respectively provided with a plurality of anode plates and cathode plates, the anode plates are connected with each other, the cathode plates are connected with each other, and the anode plates and the cathode plates are connected with a power supply;
the temperature control unit is arranged in the first electrolytic cell and the second electrolytic cell and is used for controlling the temperature of the first electrolytic cell and the second electrolytic cell in the electrolytic process;
The stirring unit is used for stirring the second treated sewage in the first electrolytic cell and the second electrolytic cell;
The specific electrolysis process is as follows:
Determining the electrolysis voltage and the electrolysis time of the current pollutant, introducing second treated sewage into a first electrolytic tank, determining the optimal temperature for the electrolysis of the current pollutant according to the attribute of the current pollutant, determining the influence degree of stirring on the electrolysis of the current pollutant, setting the working time of the first electrolytic tank as the electrolysis time of the current pollutant, introducing the second treated sewage into the first electrolytic tank, setting the voltages of an anode plate and a cathode plate of the first electrolytic tank according to the electrolysis voltage of the current pollutant, electrolyzing the second treated sewage, determining the stirring rate according to the influence degree of stirring on the electrolysis of the current pollutant, monitoring the temperature of the second treated sewage in the electrolysis process, controlling the temperature of the second treated sewage to float up and down at the optimal temperature by a temperature control unit, introducing the second treated sewage into the second electrolytic tank to electrolyze the next pollutant after the electrolysis time of the current pollutant is reached, and circularly using the first electrolytic tank and the second electrolytic tank to electrolyze the second treated sewage until the electrolysis of all the pollutants is completed to obtain third treated sewage;
After the first electrolytic cell finishes the electrolysis of the current pollutant and is led into the second electrolytic cell, the clean water is led into the first electrolytic cell, the stirring unit is used for stirring, and after the first electrolytic cell is cleaned, the cleaned sewage is led out from the discharge outlet.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a block diagram of an electrochemical device for treating sponge municipal sewage according to an embodiment of the invention;
FIG. 2 is a block diagram of an electrochemical processing module in accordance with an embodiment of the present invention;
FIG. 3 is a flow chart of an electrochemical treatment method for treating sponge municipal sewage according to an embodiment of the invention.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
Example 1
The embodiment of the invention provides an electrochemical device for sponge urban sewage treatment, as shown in fig. 1, comprising:
The sewage filtering module is used for filtering pollutants with the volume larger than the preset volume in the sponge urban sewage to obtain first treated sewage;
the sewage degradation module is used for degrading and precipitating organic matters in the first treated sewage to obtain second treated sewage;
and the electrochemical treatment module is used for guiding the second treated sewage into the electrolytic cell for electrolytic treatment to obtain third treated sewage.
In this embodiment, the second treated wastewater is introduced into an electrolytic cell for electrolytic treatment, specifically, the electrolytic treatment is performed on the contaminants in the second treated wastewater by setting an electrolytic voltage and an electrolytic time.
The beneficial effects of above-mentioned design scheme are: the sewage after being worried about degradation is subjected to electrochemical treatment, specifically, the electrolysis voltage and the electrolysis time are set, pollutants in the second treated sewage are subjected to electrolytic treatment one by one, the removal of organic matters in the sewage is realized, and the sewage treatment effect is ensured.
Example 2
Based on embodiment 1, an embodiment of the present invention provides an electrochemical device for sponge municipal sewage treatment, a sewage filtration module, comprising:
the first filtering unit is used for stirring the sponge municipal sewage before the first filtering screen and enabling the sponge municipal sewage to pass through the first filtering screen at a first speed to obtain first filtering sewage;
the second filtering unit is used for enabling the first filtered sewage to pass through the second filter screen at a second rate to obtain second filtered sewage;
and the outlet unit is used for flowing out the second filtered sewage from the outlet valve at a third speed to obtain the first treated sewage.
In this embodiment, the first rate is less than the second rate, and the second rate is less than the third rate.
In this embodiment, the mouth diameter of the first filter is greater than the mouth diameter of the second filter.
In this embodiment, the sponge municipal sewage is stirred in the first filter unit, improving the efficiency of concern for impurities in the sewage.
In this embodiment, the first filter unit and the second filter unit are each provided with an impurity treatment device for removing impurities on the first filter screen and the second filter screen when the sewage filtration is not performed.
The beneficial effects of above-mentioned design scheme are: through setting up first filter unit and second filter unit to set up different speed respectively and pass through first filter screen and second filter screen, when guaranteeing to sewage filter effect, improve sewage filtration efficiency, provide the basis for the electrochemical treatment of sewage.
Example 3
Based on embodiment 1, the embodiment of the invention provides an electrochemical device for sponge urban sewage treatment, a sewage degradation module, comprising:
the degradation unit is used for guiding the first treated sewage into the chemical tank, adding a catalyst into the chemical tank and degrading the first treated sewage to obtain degraded sewage;
and the sedimentation unit is used for guiding the degradation sewage into the sedimentation tank to carry out sedimentation within a preset time to obtain second treatment sewage.
In this embodiment, the catalyst may be, for example, a catalyst with hectorite as a support and sodium dicyandiamide as a dopant.
In this embodiment, the degradation unit may degrade a part of organic matters in the first treated sewage.
In this embodiment, the precipitation unit may perform precipitation removal of new organic matters obtained by degradation in the degradation wastewater.
The beneficial effects of above-mentioned design scheme are: and degrading and precipitating the first treated sewage to remove part of organic matters and solid impurities in the first treated sewage, so as to obtain second treated sewage, and providing a foundation for electrochemical treatment of the second treated sewage.
Example 4
Based on embodiment 1, an embodiment of the present invention provides an electrochemical device for treating sponge municipal sewage, as shown in fig. 2, an electrochemical treatment module, including:
The PH value adjusting unit is used for adding alkali into the second treated sewage to adjust the PH value of the second treated sewage to 6-8, and then guiding the second treated sewage into the electrolytic cell;
A concentration detection unit for extracting a predetermined volume of sewage to be detected from the second treated sewage to determine a pollutant name and a concentration, and determining an electrolysis voltage and an electrolysis time for each pollutant based on the pollutant name and the concentration;
and the electrolysis unit is used for electrolyzing the second treated sewage from high to low according to the electrolysis voltage to obtain third treated sewage.
The beneficial effects of above-mentioned design scheme are: and setting electrolysis voltage and electrolysis time, and carrying out electrolytic treatment on pollutants in the second treated sewage one by one to realize the removal of organic matters in the sewage and ensure the sewage treatment effect.
Example 5
Based on embodiment 4, an embodiment of the present invention provides an electrochemical device for sponge municipal sewage treatment, a concentration monitoring unit, including:
the water quality analysis unit is used for carrying out water quality detection on the sewage to be detected and determining the names of pollutants in the sewage to be detected;
The wavelength determining unit is used for determining the first detection light wavelength of the pollutants according to the names of the pollutants, obtaining a first detection light wavelength set of all the pollutants, performing conflict detection on the first detection light wavelength set, and judging whether conflict exists among the first detection light wavelengths;
if yes, adjusting the wavelength of the first detection light with conflict to obtain the wavelength of the target detection light;
Otherwise, the first detection light wavelength set is used as the target detection light wavelength;
the quantity determining unit is used for adding a fluorescent reagent into the sewage to be detected according to the characteristics of the pollutants and the target detection light wavelength, and irradiating the sewage to be detected added with the fluorescent reagent according to the target detection light wavelength to obtain the corresponding initial fluorescence quantity and fluorescence position;
The quantity analysis unit is used for carrying out discrete analysis on the initial fluorescence quantity according to the fluorescence position and the standard position of the pollutant to obtain a plurality of groups of fluorescence position intervals, setting different weight values for the plurality of groups of fluorescence position intervals based on the standard position, and carrying out weighted calculation on the initial fluorescence quantity according to the weight values to obtain the target fluorescence quantity;
A concentration determining unit for determining the concentration of the contaminant according to the target fluorescence amount and the characteristics of the fluorescence-labeled ions in the contaminant;
the voltage determining unit is used for determining the voltage range of the pollutants according to the characteristics of the pollutants and judging whether the voltage ranges among the pollutants overlap or not;
If so, uniformly setting a public voltage range for pollutants with overlapping voltage ranges, and selecting the optimal voltage from the public voltage range as an electrolysis voltage;
otherwise, selecting the optimal voltage from the voltage range of the pollutant as the electrolysis voltage;
and the time determining unit is used for superposing the concentrations of the pollutants with the overlapped voltage ranges to obtain the final concentration, setting the corresponding electrolysis time by combining the electrolysis process characteristics of the pollutants with the overlapped voltage ranges, or setting the corresponding electrolysis time by combining the electrolysis process characteristics of the pollutants without the overlapped voltage ranges according to the concentrations of the pollutants without the overlapped voltage ranges.
In this embodiment, if there is a conflict in the first detected light wavelengths in the first detected light wavelength set, for example, the difference between the first detected light wavelengths determined for different contaminants is within a preset range, then adjustment is required.
In this embodiment, the standard position of the contaminant is the position height that should actually be in the sewage to be detected, which is determined based on the characteristics of the contaminant.
In this embodiment, the farther the fluorescence location interval is from the standard location, the smaller the corresponding weight value, and the closer the fluorescence location interval is from the standard location, the larger the corresponding weight value.
In this embodiment, the unified electrolytic treatment is performed as a whole on the contaminants having overlapping electrolytic voltage ranges, and the electrolytic efficiency is improved while ensuring the electrolytic effect.
The beneficial effects of above-mentioned design scheme are: the concentration of the pollutants in the sewage to be detected is detected, the weighted calculation is introduced in the detection process, the other types of fluorescence quantity is prevented from being used as the quantity for detecting the concentration, the accuracy of concentration detection is guaranteed, meanwhile, the electrolysis voltage is determined according to the characteristics of the pollutants, the pollutants which can be electrolyzed simultaneously are used as a whole in the process of determining the electrolysis voltage, the optimal electrolysis voltage is determined for the pollutants, the electrolysis efficiency is improved while the electrolysis effect is ensured, the reasonable electrolysis time is finally set, and a data base is provided for the electrolysis of the second treated sewage.
Example 6
Based on embodiment 4, an embodiment of the present invention provides an electrochemical device for treating sponge municipal sewage, an electrolysis unit, comprising:
The electrolytic cell unit comprises a first electrolytic cell and a second electrolytic cell, wherein the first electrolytic cell and the second electrolytic cell are obtained by dividing an integral electrolytic cell into two electrolytic cells with the same size, the first electrolytic cell and the second electrolytic cell are communicated with each other through a conducting pipe, the first electrolytic cell and the second electrolytic cell are respectively provided with a plurality of anode plates and cathode plates, the anode plates are connected with each other, the cathode plates are connected with each other, and the anode plates and the cathode plates are connected with a power supply;
the temperature control unit is arranged in the first electrolytic cell and the second electrolytic cell and is used for controlling the temperature of the first electrolytic cell and the second electrolytic cell in the electrolytic process;
The stirring unit is used for stirring the second treated sewage in the first electrolytic cell and the second electrolytic cell;
the control unit is used for determining the electrolysis voltage and the electrolysis time of the current pollutant, introducing second treated sewage into the first electrolytic tank, determining the optimal temperature for the electrolysis of the current pollutant according to the attribute of the current pollutant, determining the influence degree of stirring on the electrolysis of the current pollutant, setting the working time of the first electrolytic tank as the electrolysis time of the current pollutant, introducing the second treated sewage into the first electrolytic tank, setting the voltages of an anode plate and a cathode plate of the first electrolytic tank according to the electrolysis voltage of the current pollutant, electrolyzing the second treated sewage, determining the stirring rate according to the influence degree of stirring on the electrolysis of the current pollutant, monitoring the temperature of the second treated sewage in the electrolysis process, controlling the temperature of the second treated sewage to float up and down at the optimal temperature, introducing the second treated sewage into the second electrolytic tank to electrolyze the next pollutant after the electrolysis time of the current pollutant is reached, and circularly using the first electrolytic tank and the second electrolytic tank to electrolyze the second treated sewage until the third treatment of the pollutants is completed;
And the control unit is also used for leading clear water into the first electrolytic cell after the first electrolytic cell finishes the electrolysis of the current pollutant and leading the current pollutant into the second electrolytic cell, stirring the first electrolytic cell by the stirring unit, and leading the cleaned sewage out of the discharge port after the first electrolytic cell is cleaned.
In this example, the greater the extent of agitation effect on the current contaminant electrolysis, the faster the corresponding agitation rate.
In this embodiment, by performing a timely cleaning of the first electrolytic cell after completing the electrolytic process of the current contaminant, the subsequent electrolytic treatment of the second treated wastewater by the second electrolytic cell is not affected.
The beneficial effects of above-mentioned design scheme are: through setting up two electrolytic cells of first electrolytic cell and second electrolytic cell, carry out electrolytic treatment to the pollutant in the second treatment sewage in proper order alternately, can avoid after accomplishing the electrolysis of current pollutant, can not in time clear up the pollutant residue of electrolysis, produce the influence to the electrolysis process of next pollutant, cause the condition that the electrolytic effect is not good, simultaneously, carry out the control of temperature and the control of stirring rate according to the electrolytic characteristic of pollutant in the electrolytic process of pollutant, better assurance electrolytic effect, improve electrolytic efficiency, through setting up different electrolysis voltage and electrolysis time to different pollutant, accomplish the electrolysis to various best in the second treatment sewage better, guarantee the electrolytic effect to the second treatment sewage, make the purifying effect of the third treatment sewage that obtains better.
Example 7
The embodiment of the invention provides an electrochemical treatment method for sponge urban sewage treatment, which is characterized by comprising the following steps as shown in fig. 3:
S1: filtering pollutants with the volume larger than the preset volume in the sponge municipal sewage to obtain first treated sewage;
S2: degrading and precipitating organic matters in the first treated sewage to obtain second treated sewage;
S3: and introducing the second treated sewage into an electrolytic cell for electrolytic treatment to obtain third treated sewage.
In this embodiment, the second treated wastewater is introduced into an electrolytic cell for electrolytic treatment, specifically, the electrolytic treatment is performed on the contaminants in the second treated wastewater by setting an electrolytic voltage and an electrolytic time.
The beneficial effects of above-mentioned design scheme are: the sewage after being worried about degradation is subjected to electrochemical treatment, specifically, the electrolysis voltage and the electrolysis time are set, pollutants in the second treated sewage are subjected to electrolytic treatment one by one, the removal of organic matters in the sewage is realized, and the sewage treatment effect is ensured.
Example 8
Based on embodiment 7, the embodiment of the invention provides a treatment method for sponge urban sewage treatment, in S3, introducing second treated sewage into an electrolytic cell for electrolytic treatment to obtain third treated sewage, which comprises the following steps:
adding alkali into the second treated sewage to adjust the pH value of the second treated sewage to 6-8, and then introducing the second treated sewage into an electrolytic cell;
Extracting a preset volume of sewage to be detected from the second treated sewage to determine the name and concentration of the pollutants, and determining the electrolysis voltage and the electrolysis time of each pollutant based on the name and concentration of the pollutants;
and electrolyzing the second treated sewage from high to low according to the electrolysis voltage to obtain third treated sewage.
The beneficial effects of above-mentioned design scheme are: and setting electrolysis voltage and electrolysis time, and carrying out electrolytic treatment on pollutants in the second treated sewage one by one to realize the removal of organic matters in the sewage and ensure the sewage treatment effect.
Example 9
Based on embodiment 8, an embodiment of the present invention provides an electrochemical treatment method for treating sponge urban sewage, extracting a predetermined volume of sewage to be detected from second treated sewage to determine a pollutant name and a concentration, and determining an electrolysis voltage and an electrolysis time for each pollutant based on the pollutant name and the concentration, including:
performing water quality detection on the sewage to be detected, and determining the names of pollutants in the sewage to be detected;
Determining first detection light wavelengths of pollutants according to the names of the pollutants, obtaining a first detection light wavelength set of all the pollutants, performing conflict detection on the first detection light wavelength set, and judging whether conflict exists among the first detection light wavelengths;
if yes, adjusting the wavelength of the first detection light with conflict to obtain the wavelength of the target detection light;
Otherwise, the first detection light wavelength set is used as the target detection light wavelength;
adding a fluorescent reagent into the sewage to be detected according to the characteristics of the pollutants and the target detection light wavelength, and irradiating the sewage to be detected added with the fluorescent reagent according to the target detection light wavelength to obtain the corresponding initial fluorescence quantity and fluorescence position;
Performing discrete analysis on the initial fluorescence quantity according to the fluorescence positions and the standard positions of the pollutants to obtain a plurality of groups of fluorescence position intervals, setting different weight values for the plurality of groups of fluorescence position intervals based on the standard positions, and performing weighted calculation on the initial fluorescence quantity according to the weight values to obtain the target fluorescence quantity;
determining the concentration of the contaminant according to the target fluorescence quantity and the characteristics of the fluorescence labeling ions in the contaminant;
determining voltage ranges for the pollutants according to the characteristics of the pollutants, and judging whether the voltage ranges among the pollutants overlap;
If so, uniformly setting a common voltage range for pollutants with overlapping voltage ranges, selecting the optimal voltage from the common voltage range as an electrolysis voltage, and using the largest pollutant in the pollutants with overlapping voltage ranges
Otherwise, selecting the optimal voltage from the voltage range of the pollutant as the electrolysis voltage;
And superposing the concentrations of the pollutants with the overlapped voltage ranges to obtain the final concentration, setting corresponding electrolysis time by combining the electrolysis process characteristics of the pollutants with the overlapped voltage ranges, or setting corresponding electrolysis time by combining the electrolysis process characteristics of the pollutants without the overlapped voltage ranges according to the concentrations of the pollutants without the overlapped voltage ranges.
In this embodiment, the standard position of the contaminant is the position height that should actually be in the sewage to be detected, which is determined based on the characteristics of the contaminant.
In this embodiment, the farther the fluorescence location interval is from the standard location, the smaller the corresponding weight value, and the closer the fluorescence location interval is from the standard location, the larger the corresponding weight value.
In this embodiment, the unified electrolytic treatment is performed as a whole on the contaminants having overlapping electrolytic voltage ranges, and the electrolytic efficiency is improved while ensuring the electrolytic effect.
The beneficial effects of above-mentioned design scheme are: the concentration of the pollutants in the sewage to be detected is detected, the weighted calculation is introduced in the detection process, the other types of fluorescence quantity is prevented from being used as the quantity for detecting the concentration, the accuracy of concentration detection is guaranteed, meanwhile, the electrolysis voltage is determined according to the characteristics of the pollutants, the pollutants which can be electrolyzed simultaneously are used as a whole in the process of determining the electrolysis voltage, the optimal electrolysis voltage is determined for the pollutants, the electrolysis efficiency is improved while the electrolysis effect is ensured, the reasonable electrolysis time is finally set, and a data base is provided for the electrolysis of the second treated sewage.
Example 10
Based on embodiment 8, the embodiment of the invention provides a treatment method for treating sponge urban sewage, which comprises the steps of electrolyzing second treated sewage from high to low according to electrolysis voltage to obtain third treated sewage, wherein the method comprises the following steps:
The electrolytic cell comprises a first electrolytic cell and a second electrolytic cell, the first electrolytic cell and the second electrolytic cell are obtained by dividing the whole electrolytic cell into two electrolytic cells with the same size, the first electrolytic cell and the second electrolytic cell are communicated with each other through a conducting pipe, the first electrolytic cell and the second electrolytic cell are respectively provided with a plurality of anode plates and cathode plates, the anode plates are connected with each other, the cathode plates are connected with each other, and the anode plates and the cathode plates are connected with a power supply;
the temperature control unit is arranged in the first electrolytic cell and the second electrolytic cell and is used for controlling the temperature of the first electrolytic cell and the second electrolytic cell in the electrolytic process;
The stirring unit is used for stirring the second treated sewage in the first electrolytic cell and the second electrolytic cell;
The specific electrolysis process is as follows:
Determining the electrolysis voltage and the electrolysis time of the current pollutant, introducing second treated sewage into a first electrolytic tank, determining the optimal temperature for the electrolysis of the current pollutant according to the attribute of the current pollutant, determining the influence degree of stirring on the electrolysis of the current pollutant, setting the working time of the first electrolytic tank as the electrolysis time of the current pollutant, introducing the second treated sewage into the first electrolytic tank, setting the voltages of an anode plate and a cathode plate of the first electrolytic tank according to the electrolysis voltage of the current pollutant, electrolyzing the second treated sewage, determining the stirring rate according to the influence degree of stirring on the electrolysis of the current pollutant, monitoring the temperature of the second treated sewage in the electrolysis process, controlling the temperature of the second treated sewage to float up and down at the optimal temperature by a temperature control unit, introducing the second treated sewage into the second electrolytic tank to electrolyze the next pollutant after the electrolysis time of the current pollutant is reached, and circularly using the first electrolytic tank and the second electrolytic tank to electrolyze the second treated sewage until the electrolysis of all the pollutants is completed to obtain third treated sewage;
After the first electrolytic cell finishes the electrolysis of the current pollutant and is led into the second electrolytic cell, the clean water is led into the first electrolytic cell, the stirring unit is used for stirring, and after the first electrolytic cell is cleaned, the cleaned sewage is led out from the discharge outlet.
In this example, the greater the extent of agitation effect on the current contaminant electrolysis, the faster the corresponding agitation rate.
In this embodiment, by performing a timely cleaning of the first electrolytic cell after completing the electrolytic process of the current contaminant, the subsequent electrolytic treatment of the second treated wastewater by the second electrolytic cell is not affected.
The beneficial effects of above-mentioned design scheme are: through setting up two electrolytic cells of first electrolytic cell and second electrolytic cell, carry out electrolytic treatment to the pollutant in the second treatment sewage in proper order alternately, can avoid after accomplishing the electrolysis of current pollutant, can not in time clear up the pollutant residue of electrolysis, produce the influence to the electrolysis process of next pollutant, cause the condition that the electrolytic effect is not good, simultaneously, carry out the control of temperature and the control of stirring rate according to the electrolytic characteristic of pollutant in the electrolytic process of pollutant, better assurance electrolytic effect, improve electrolytic efficiency, through setting up different electrolysis voltage and electrolysis time to different pollutant, accomplish the electrolysis to various best in the second treatment sewage better, guarantee the electrolytic effect to the second treatment sewage, make the purifying effect of the third treatment sewage that obtains better.
Example 11
Based on example 6, the electrolysis unit further comprises: the cathode protection unit is used for protecting a cathode plate in the electrolysis process;
A cathodic protection unit comprising:
the quality determining unit is used for determining the quality of a plating layer of the anode plate based on the protection area of the anode plate to the cathode plate in the electrolysis process and combining with the protection current;
Wherein K represents the quality of a plating layer on the anode plate, n represents the number of electrolysis of pollutants, A i represents the current density of the ith electrolytic process, D represents the area of the cathode plate, delta represents the utilization rate of the cathode plate, tau represents the service life of the anode plate, the unit is t, the material of the anode plate is related to the material of the anode plate, H represents the consumption rate of the anode plate for protecting the cathode plate, the unit is kg/t, K z represents the utilization rate of the anode plate in the whole electrolytic process, K i represents the utilization rate of the anode plate in the ith electrolytic process, Representing the utilization coefficient of the anode plate in the whole electrolysis process;
and the coating unit is used for designing and obtaining the anode plate according to the quality of the coating.
In this embodiment, in order to protect the cathode plate, the current density can generate certain damage to the anode plate, and since the amount of municipal sewage is huge, in order to ensure that the electrolysis of municipal sewage is completed once, the quality of the anode plate needs to be set, so that the situation that the anode plate cannot be normally used due to the damage in the electrolysis process is avoided.
The beneficial effects of above-mentioned design scheme are: through setting up the cladding material quality of suitable anode plate, guaranteed the protection to the negative plate, guaranteed to accomplish once to the electrolysis of urban sewage, for realizing getting rid of the organic matter in the sewage, guarantee sewage treatment effect and provide the material basis.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (6)
1. An electrochemical device for sponge municipal sewage treatment, comprising:
The sewage filtering module is used for filtering pollutants with the volume larger than the preset volume in the sponge urban sewage to obtain first treated sewage;
the sewage degradation module is used for degrading and precipitating organic matters in the first treated sewage to obtain second treated sewage;
The electrochemical treatment module is used for guiding the second treated sewage into the electrolytic cell for electrolytic treatment to obtain third treated sewage;
An electrochemical processing module, comprising:
The pH value adjusting unit is used for adding alkali into the second treated sewage to adjust the pH value of the second treated sewage to 6-8, and then guiding the second treated sewage into the electrolytic cell;
A concentration detection unit for extracting a predetermined volume of sewage to be detected from the second treated sewage to determine a pollutant name and a concentration, and determining an electrolysis voltage and an electrolysis time for each pollutant based on the pollutant name and the concentration;
the electrolysis unit is used for electrolyzing the second treated sewage from high to low according to the electrolysis voltage to obtain third treated sewage;
A concentration monitoring unit comprising:
the water quality analysis unit is used for carrying out water quality detection on the sewage to be detected and determining the names of pollutants in the sewage to be detected;
The wavelength determining unit is used for determining the first detection light wavelength of the pollutants according to the names of the pollutants, obtaining a first detection light wavelength set of all the pollutants, performing conflict detection on the first detection light wavelength set, and judging whether conflict exists among the first detection light wavelengths;
if yes, adjusting the wavelength of the first detection light with conflict to obtain the wavelength of the target detection light;
Otherwise, the first detection light wavelength set is used as the target detection light wavelength;
the quantity determining unit is used for adding a fluorescent reagent into the sewage to be detected according to the characteristics of the pollutants and the target detection light wavelength, and irradiating the sewage to be detected added with the fluorescent reagent according to the target detection light wavelength to obtain the corresponding initial fluorescence quantity and fluorescence position;
The quantity analysis unit is used for carrying out discrete analysis on the initial fluorescence quantity according to the fluorescence position and the standard position of the pollutant to obtain a plurality of groups of fluorescence position intervals, setting different weight values for the plurality of groups of fluorescence position intervals based on the standard position, and carrying out weighted calculation on the initial fluorescence quantity according to the weight values to obtain the target fluorescence quantity;
A concentration determining unit for determining the concentration of the contaminant according to the target fluorescence amount and the characteristics of the fluorescence-labeled ions in the contaminant;
the voltage determining unit is used for determining the voltage range of the pollutants according to the characteristics of the pollutants and judging whether the voltage ranges among the pollutants overlap or not;
if so, uniformly setting a common voltage range for pollutants with overlapping voltage ranges, selecting the optimal voltage from the common voltage range as the electrolysis voltage,
Otherwise, selecting the optimal voltage from the voltage range of the pollutant as the electrolysis voltage;
and the time determining unit is used for superposing the concentrations of the pollutants with the overlapped voltage ranges to obtain the final concentration, setting the corresponding electrolysis time by combining the electrolysis process characteristics of the pollutants with the overlapped voltage ranges, or setting the corresponding electrolysis time by combining the electrolysis process characteristics of the pollutants without the overlapped voltage ranges according to the concentrations of the pollutants without the overlapped voltage ranges.
2. An electrochemical device for treating sponge municipal sewage according to claim 1, wherein the sewage filtering module comprises:
the first filtering unit is used for stirring the sponge municipal sewage before the first filtering screen and enabling the sponge municipal sewage to pass through the first filtering screen at a first speed to obtain first filtering sewage;
the second filtering unit is used for enabling the first filtered sewage to pass through the second filter screen at a second rate to obtain second filtered sewage;
and the outlet unit is used for flowing out the second filtered sewage from the outlet valve at a third speed to obtain the first treated sewage.
3. An electrochemical device for treating sponge municipal sewage according to claim 1, wherein the sewage degradation module comprises:
the degradation unit is used for guiding the first treated sewage into the chemical tank, adding a catalyst into the chemical tank and degrading the first treated sewage to obtain degraded sewage;
and the sedimentation unit is used for guiding the degradation sewage into the sedimentation tank to carry out sedimentation within a preset time to obtain second treatment sewage.
4. An electrochemical device for treating sponge municipal sewage according to claim 1, wherein the electrolysis unit comprises:
The electrolytic cell unit comprises a first electrolytic cell and a second electrolytic cell, wherein the first electrolytic cell and the second electrolytic cell are obtained by dividing an integral electrolytic cell into two electrolytic cells with the same size, the first electrolytic cell and the second electrolytic cell are communicated with each other through a conducting pipe, the first electrolytic cell and the second electrolytic cell are respectively provided with a plurality of anode plates and cathode plates, the anode plates are connected with each other, the cathode plates are connected with each other, and the anode plates and the cathode plates are connected with a power supply;
the temperature control unit is arranged in the first electrolytic cell and the second electrolytic cell and is used for controlling the temperature of the first electrolytic cell and the second electrolytic cell in the electrolytic process;
The stirring unit is used for stirring the second treated sewage in the first electrolytic cell and the second electrolytic cell;
the control unit is used for determining the electrolysis voltage and the electrolysis time of the current pollutant, introducing second treated sewage into the first electrolytic tank, determining the optimal temperature for the electrolysis of the current pollutant according to the attribute of the current pollutant, determining the influence degree of stirring on the electrolysis of the current pollutant, setting the working time of the first electrolytic tank as the electrolysis time of the current pollutant, introducing the second treated sewage into the first electrolytic tank, setting the voltages of an anode plate and a cathode plate of the first electrolytic tank according to the electrolysis voltage of the current pollutant, electrolyzing the second treated sewage, determining the stirring rate according to the influence degree of stirring on the electrolysis of the current pollutant, monitoring the temperature of the second treated sewage in the electrolysis process, controlling the temperature of the second treated sewage to float up and down at the optimal temperature, introducing the second treated sewage into the second electrolytic tank to electrolyze the next pollutant after the electrolysis time of the current pollutant is reached, and circularly using the first electrolytic tank and the second electrolytic tank to electrolyze the second treated sewage until the third treatment of the pollutants is completed;
And the control unit is also used for leading clear water into the first electrolytic cell after the first electrolytic cell finishes the electrolysis of the current pollutant and leading the current pollutant into the second electrolytic cell, stirring the first electrolytic cell by the stirring unit, and leading the cleaned sewage out of the discharge port after the first electrolytic cell is cleaned.
5. An electrochemical treatment method for sponge urban sewage treatment, which is characterized by comprising the following steps:
S1: filtering pollutants with the volume larger than the preset volume in the sponge municipal sewage to obtain first treated sewage;
S2: degrading and precipitating organic matters in the first treated sewage to obtain second treated sewage;
S3: introducing the second treated sewage into an electrolytic cell for electrolytic treatment to obtain third treated sewage;
s3, introducing the second treated sewage into an electrolytic cell for electrolytic treatment to obtain third treated sewage, wherein the method comprises the following steps:
Adding alkali into the second treated sewage to adjust the pH value of the second treated sewage to 6-8, and then introducing the second treated sewage into an electrolytic cell;
Extracting a preset volume of sewage to be detected from the second treated sewage to determine the name and concentration of the pollutants, and determining the electrolysis voltage and the electrolysis time of each pollutant based on the name and concentration of the pollutants;
electrolyzing the second treated sewage from high to low according to the electrolysis voltage to obtain third treated sewage;
Extracting a predetermined volume of wastewater to be detected from the second treated wastewater to determine the name and concentration of the contaminant, and determining the electrolysis voltage and the electrolysis time for each contaminant based on the name and concentration of the contaminant, comprising:
performing water quality detection on the sewage to be detected, and determining the names of pollutants in the sewage to be detected;
Determining first detection light wavelengths of pollutants according to the names of the pollutants, obtaining a first detection light wavelength set of all the pollutants, performing conflict detection on the first detection light wavelength set, and judging whether conflict exists among the first detection light wavelengths;
if yes, adjusting the wavelength of the first detection light with conflict to obtain the wavelength of the target detection light;
Otherwise, the first detection light wavelength set is used as the target detection light wavelength;
adding a fluorescent reagent into the sewage to be detected according to the characteristics of the pollutants and the target detection light wavelength, and irradiating the sewage to be detected added with the fluorescent reagent according to the target detection light wavelength to obtain the corresponding initial fluorescence quantity and fluorescence position;
Performing discrete analysis on the initial fluorescence quantity according to the fluorescence positions and the standard positions of the pollutants to obtain a plurality of groups of fluorescence position intervals, setting different weight values for the plurality of groups of fluorescence position intervals based on the standard positions, and performing weighted calculation on the initial fluorescence quantity according to the weight values to obtain the target fluorescence quantity;
determining the concentration of the contaminant according to the target fluorescence quantity and the characteristics of the fluorescence labeling ions in the contaminant;
determining voltage ranges for the pollutants according to the characteristics of the pollutants, and judging whether the voltage ranges among the pollutants overlap;
if so, uniformly setting a common voltage range for pollutants with overlapping voltage ranges, selecting the optimal voltage from the common voltage range as the electrolysis voltage,
Otherwise, selecting the optimal voltage from the voltage range of the pollutant as the electrolysis voltage;
And superposing the concentrations of the pollutants with the overlapped voltage ranges to obtain the final concentration, setting corresponding electrolysis time by combining the electrolysis process characteristics of the pollutants with the overlapped voltage ranges, or setting corresponding electrolysis time by combining the electrolysis process characteristics of the pollutants without the overlapped voltage ranges according to the concentrations of the pollutants without the overlapped voltage ranges.
6. The electrochemical treatment method for treating sponge municipal sewage according to claim 5, wherein the step of electrolyzing the second treated sewage from high to low in electrolysis voltage to obtain third treated sewage comprises:
The electrolytic cell comprises a first electrolytic cell and a second electrolytic cell, the first electrolytic cell and the second electrolytic cell are obtained by dividing the whole electrolytic cell into two electrolytic cells with the same size, the first electrolytic cell and the second electrolytic cell are communicated with each other through a conducting pipe, the first electrolytic cell and the second electrolytic cell are respectively provided with a plurality of anode plates and cathode plates, the anode plates are connected with each other, the cathode plates are connected with each other, and the anode plates and the cathode plates are connected with a power supply;
the temperature control unit is arranged in the first electrolytic cell and the second electrolytic cell and is used for controlling the temperature of the first electrolytic cell and the second electrolytic cell in the electrolytic process;
The stirring unit is used for stirring the second treated sewage in the first electrolytic cell and the second electrolytic cell;
The specific electrolysis process is as follows:
Determining the electrolysis voltage and the electrolysis time of the current pollutant, introducing second treated sewage into a first electrolytic tank, determining the optimal temperature for the electrolysis of the current pollutant according to the attribute of the current pollutant, determining the influence degree of stirring on the electrolysis of the current pollutant, setting the working time of the first electrolytic tank as the electrolysis time of the current pollutant, introducing the second treated sewage into the first electrolytic tank, setting the voltages of an anode plate and a cathode plate of the first electrolytic tank according to the electrolysis voltage of the current pollutant, electrolyzing the second treated sewage, determining the stirring rate according to the influence degree of stirring on the electrolysis of the current pollutant, monitoring the temperature of the second treated sewage in the electrolysis process, controlling the temperature of the second treated sewage to float up and down at the optimal temperature by a temperature control unit, introducing the second treated sewage into the second electrolytic tank to electrolyze the next pollutant after the electrolysis time of the current pollutant is reached, and circularly using the first electrolytic tank and the second electrolytic tank to electrolyze the second treated sewage until the electrolysis of all the pollutants is completed to obtain third treated sewage;
After the first electrolytic cell finishes the electrolysis of the current pollutant and is led into the second electrolytic cell, the clean water is led into the first electrolytic cell, the stirring unit is used for stirring, and after the first electrolytic cell is cleaned, the cleaned sewage is led out from the discharge outlet.
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