CN114380462A - Thallium removal method and wastewater treatment device - Google Patents
Thallium removal method and wastewater treatment device Download PDFInfo
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- CN114380462A CN114380462A CN202111663421.9A CN202111663421A CN114380462A CN 114380462 A CN114380462 A CN 114380462A CN 202111663421 A CN202111663421 A CN 202111663421A CN 114380462 A CN114380462 A CN 114380462A
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- 229910052716 thallium Inorganic materials 0.000 title claims abstract description 65
- BKVIYDNLLOSFOA-UHFFFAOYSA-N thallium Chemical compound [Tl] BKVIYDNLLOSFOA-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 18
- 239000002351 wastewater Substances 0.000 claims abstract description 38
- 238000006243 chemical reaction Methods 0.000 claims abstract description 30
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 24
- 239000002131 composite material Substances 0.000 claims abstract description 24
- 238000001914 filtration Methods 0.000 claims abstract description 14
- 239000012535 impurity Substances 0.000 claims abstract description 10
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 7
- 238000010979 pH adjustment Methods 0.000 claims abstract description 6
- 230000008030 elimination Effects 0.000 claims abstract description 5
- 238000003379 elimination reaction Methods 0.000 claims abstract description 5
- 239000010802 sludge Substances 0.000 claims description 32
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 9
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims description 7
- 238000005868 electrolysis reaction Methods 0.000 claims description 7
- 229910001385 heavy metal Inorganic materials 0.000 claims description 7
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 6
- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 6
- 150000001412 amines Chemical class 0.000 claims description 6
- 239000004202 carbamide Substances 0.000 claims description 6
- 239000004927 clay Substances 0.000 claims description 6
- 229960002089 ferrous chloride Drugs 0.000 claims description 6
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 claims description 6
- 239000011943 nanocatalyst Substances 0.000 claims description 6
- 125000001741 organic sulfur group Chemical group 0.000 claims description 6
- 239000004094 surface-active agent Substances 0.000 claims description 6
- 230000000249 desinfective effect Effects 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 230000015556 catabolic process Effects 0.000 claims description 2
- 239000000356 contaminant Substances 0.000 claims description 2
- 238000006731 degradation reaction Methods 0.000 claims description 2
- 239000000645 desinfectant Substances 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 claims description 2
- 230000003750 conditioning effect Effects 0.000 claims 3
- 239000000463 material Substances 0.000 claims 1
- 239000003814 drug Substances 0.000 abstract description 5
- 230000001105 regulatory effect Effects 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000002994 raw material Substances 0.000 description 6
- 238000005086 pumping Methods 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000029219 regulation of pH Effects 0.000 description 2
- 208000026015 thallium poisoning Diseases 0.000 description 2
- 208000005156 Dehydration Diseases 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 229910052947 chalcocite Inorganic materials 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000002249 digestive system Anatomy 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 229910052949 galena Inorganic materials 0.000 description 1
- 229910052935 jarosite Inorganic materials 0.000 description 1
- XCAUINMIESBTBL-UHFFFAOYSA-N lead(ii) sulfide Chemical compound [Pb]=S XCAUINMIESBTBL-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 210000000653 nervous system Anatomy 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229910052683 pyrite Inorganic materials 0.000 description 1
- 239000011028 pyrite Substances 0.000 description 1
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 1
- 238000012372 quality testing Methods 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
Images
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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- 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
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
-
- 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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
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)
- Removal Of Specific Substances (AREA)
Abstract
The invention provides a thallium removal method and a wastewater treatment device, wherein the thallium removal method comprises the following steps: the thallium-containing wastewater is subjected to pH adjustment, electromagnetic impurity elimination, mixed reaction with the composite thallium-removing agent, filtration and disinfection, and then discharged. The thallium removal method provided by the invention has the advantages of simple flow, convenience in implementation, small dosage of the added medicament and capability of greatly reducing the operation cost.
Description
Technical Field
The invention relates to the technical field of wastewater treatment, in particular to a thallium removal method and a wastewater treatment device.
Background
In nature, thallium is often associated with oxide ores such as feldspar, mica and jarosite and sulphide ores such as pyrite, galena and chalcocite in the form of trace elements. During the mining, beneficiation and smelting of these ores, large amounts of thallium-containing waste water are produced. Thallium in the wastewater easily enters into the environmental water body due to strong mobility, and then causes serious harm to human health through drinking water and food chains, because thallium belongs to rare dispersed metals and is a highly toxic heavy metal pollutant, thallium poisoning can cause diseases of a respiratory system and a digestive system and finally cause damage to a nervous system, and serious thallium poisoning is enough to cause death of people and animals.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The first purpose of the invention is to provide a thallium removal method, which has simple process, convenient implementation, small dosage of the medicament in the operation process, greatly reduced cost and enhanced thallium removal rate.
The second object of the present invention is to provide a wastewater treatment apparatus adapted to the above method of use, which can remove thallium from industrial wastewater and can also consider investment and operation costs by treating thallium-containing wastewater with a pH adjusting tank, a reaction tank and a filtering and disinfecting device.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a thallium removal method, which comprises the following steps:
the thallium-containing wastewater is subjected to pH adjustment, electromagnetic impurity elimination, mixed reaction with the composite thallium-removing agent, filtration and disinfection, and then discharged.
Preferably, the thallium containing wastewater is subjected to a microelectrolysis treatment for initial degradation of organic contaminants in the wastewater prior to said pH adjustment.
Preferably, the pH of the thallium containing wastewater is adjusted to between 2.5 and 3.5 during the micro-electrolysis treatment.
Preferably, the electromagnetic impurity elimination adopts electromagnetic nanotechnology, which mainly removes impurities in water through the electromagnetic adsorption.
Preferably, the composite thallium removal agent adopted by the invention comprises the following raw materials: 5-10 parts of activated carbon, 11-15 parts of urea, 2-8 parts of ethylenediamine, 16-20 parts of organic sulfur, 20-30 parts of activated clay, 11-15 parts of organic alkanes, 6-10 parts of heavy metal collector, 0.5-1 part of linear chain micromolecular amine substance, 3-6 parts of surfactant and 16-20 parts of ferrous chloride.
Preferably, the sludge generated by the filtration is subjected to membrane separation treatment so as to separate and return the sludge-containing treatment water containing the activated sludge and the composite thallium removal agent in the sludge to continue the reaction.
Preferably, after the wastewater is discharged, a part of the wastewater is refluxed and sprayed, and the rest of the wastewater is conveyed to a user for use.
The invention also provides a wastewater treatment device adapted to the thallium removal method, which mainly comprises a regulating tank for pH regulation, an electromagnetic nano catalyst for electromagnetic impurity removal, a medicament adding device for putting the composite thallium removal agent into thallium-containing wastewater, a reaction tank for reaction of the thallium-containing wastewater and the composite thallium removal agent, and a filtering and disinfecting device for filtering and disinfecting the wastewater after reaction, wherein the regulating tank is sequentially connected.
Preferably, be provided with the equalizing basin elevator pump in the equalizing basin, be provided with the agitator in the reaction tank, be provided with the mud drainage pump in the reaction tank.
Preferably, the wastewater treatment device further comprises a sludge treatment system for dewatering and discharging the sludge in the sludge tank.
Preferably, the wastewater treatment device further comprises an equipment room, and a control system is arranged in the equipment room and used for detecting, regulating and controlling the whole device.
Compared with the prior art, the invention has at least the following advantages:
(1) the thallium-containing wastewater treatment method provided by the invention has simple steps, adopts the processes of pH regulation, high-efficiency composite thallium-removing agent addition and filtration to treat thallium-containing wastewater, can efficiently remove thallium in industrial wastewater, and also can consider investment and operation cost.
(2) The wastewater treatment device provided by the invention is simple to operate, is provided with an intelligent control system, can save a large amount of manpower in the operation process, has less equipment for operation, is simple to operate, and can be used by hands quickly.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a process flow diagram of the thallium containing wastewater treatment method according to the embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to examples, but it will be understood by those skilled in the art that the following examples are only illustrative of the present invention and should not be construed as limiting the scope of the present invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
Example 1
As shown in fig. 1, the embodiment provides a thallium removal method and a wastewater treatment apparatus, wherein the wastewater treatment apparatus includes an electrolytic tank, a regulating tank communicated with the electrolytic tank, an electromagnetic plate disposed on a wall of the regulating tank, a reaction tank communicated with the regulating tank, a chemical adding device disposed on the reaction tank, a sludge tank communicated with the reaction tank, and a filtering and disinfecting device communicated with the reaction tank.
The device comprises a regulating pond, a reaction pond and a sludge discharge pump, wherein the regulating pond is internally provided with a regulating pond lifting pump for pumping the wastewater in the regulating pond into the reaction pond, the reaction pond is internally provided with a stirrer for accelerating the mixing of the wastewater and a composite thallium removing agent, and the reaction pond is also provided with a sludge discharge pump for conveying the sludge to the sludge pond.
The treatment of thallium-containing wastewater comprises the following steps:
1. the method comprises the steps of injecting thallium-containing wastewater into a micro-electrolysis tank for micro-electrolysis treatment, wherein when the micro-electrolysis treatment is carried out, in order to achieve a better actual effect, the pH value of the wastewater is adjusted to 3, fiber and semi-fiber substances which are difficult to remove are removed, then the wastewater is injected into an adjusting tank, an electromagnetic nano catalyst is placed in the adjusting tank, the electromagnetic nano catalyst can adsorb impurities in the wastewater, meanwhile, sodium oxide is injected into the adjusting tank until the wastewater is weakly alkaline, after the adjustment is completed, the electromagnetic nano catalyst is adsorbed onto an electromagnetic plate on the wall of the adjusting tank, the electromagnetic nano catalyst is prevented from being damaged when the wastewater is pumped, and then the wastewater is pumped to a reaction tank through an adjusting tank lifting pump in the adjusting tank.
2. The method comprises the following steps of mixing wastewater entering a reaction tank with a composite thallium removal agent added through a medicament adding device, operating a stirrer in the reaction tank, and accelerating the mixing of the wastewater and the composite thallium removal agent, wherein the raw materials in the composite thallium removal agent are 8 parts by mass of activated carbon, 13 parts by mass of urea, 6 parts by mass of ethylenediamine, 15 parts by mass of organic sulfur, 25 parts by mass of activated clay, 13 parts by mass of organic alkanes, 8 parts by mass of heavy metal collector, 0.8 part by mass of linear chain small molecular amine substance, 5 parts by mass of surfactant and 18 parts by mass of ferrous chloride, and the adding amount of the composite thallium removal agent is selected to be 200mg/L in order to achieve a better reagent effect when the composite thallium removal agent is added.
And after the composite thallium removal agent is completely mixed and reacted with the wastewater, filtering the liquid on the upper layer to remove residual thallium, discharging the liquid out of the reaction tank, and pumping the sludge on the lower layer to a sludge tank through a sludge discharge pump for the next step of treatment.
3. And (3) carrying out membrane separation treatment on the sludge pumped to the sludge tank, conveying the activated sludge in the sludge and the sludge-containing treatment water containing the composite thallium removal agent back to the reaction tank for reaction, and discharging the residual sludge after dehydration treatment by a sludge treatment system.
4. The water that discharges from the reaction tank reaches national emission standard after filtering disinfection equipment filters the disinfection, and wherein partly add behind the disinfectant through set up in the equipment that sprays in equalizing basin, reaction tank and sludge impoundment washs the disinfection to whole equipment, and remaining water is carried to the user and is used.
In order to ensure the smooth operation and operation of the equipment, the invention is also provided with an equipment room, and a control system is arranged in the equipment room and is used for detecting and regulating the dosage of the medicament, the pumping and discharging of the waste water and the like in the whole equipment.
Example 2
The specific implementation mode is the same as that of example 1, except that the pH during micro-electrolysis treatment in this example is adjusted to 3.5, and the raw materials of the composite thallium-removing agent are selected from 5 parts by mass of activated carbon, 15 parts by mass of urea, 2 parts by mass of ethylenediamine, 20 parts by mass of organic sulfur, 20 parts by mass of activated clay, 15 parts by mass of organic alkanes, 6 parts by mass of a heavy metal collector, 1 part by mass of a linear small-molecular amine substance, 3 parts by mass of a surfactant, and 20 parts by mass of ferrous chloride.
Example 3
The specific implementation manner is the same as that of example 1, except that the pH during micro-electrolysis treatment in this example is adjusted to 2.5, and the raw materials of the composite thallium-removing agent are selected from 10 parts by mass of activated carbon, 11 parts by mass of urea, 8 parts by mass of ethylenediamine, 16 parts by mass of organic sulfur, 30 parts by mass of activated clay, 11 parts by mass of organic alkanes, 10 parts by mass of a heavy metal collector, 0.5 part by mass of a linear small-molecular amine substance, 6 parts by mass of a surfactant and 16 parts by mass of ferrous chloride.
Example 4
The specific implementation manner is the same as that in example 1, except that the raw materials of the composite thallium removal agent in this example are selected from 6 parts by mass of activated carbon, 14 parts by mass of urea, 3 parts by mass of ethylenediamine, 19 parts by mass of organic sulfur, 21 parts by mass of activated clay, 12 parts by mass of organic alkanes, 7 parts by mass of a heavy metal collector, 0.9 part by mass of a linear small-molecular amine substance, 4 parts by mass of a surfactant, and 17 parts by mass of ferrous chloride.
Comparative example 1
The specific embodiment is the same as example 1, except that ethylenediamine was not selected as the raw material in the composite thallium removing agent in this comparative example.
The clean water discharged last in examples 1 to 4 and comparative example 1 was examined, and the results are shown in table 1 below:
TABLE 1 Water quality testing data
| Initial thallium concentration/(μ g/L) | Final thallium concentration/(μ g/L) | Thallium removal rate/(%) | |
| Example 1 | 1000 | 5 | 99.99 |
| Example 2 | 1000 | 10 | 99.15 |
| Example 3 | 1000 | 17 | 98.94 |
| Example 4 | 1000 | 19 | 98.20 |
| Comparative example 1 | 1000 | 103 | 89.78 |
By detecting the clear water discharged from examples 1 to 4 and comparative example 1, it can be seen that a good effect can be achieved only by removing thallium according to the method of the present invention, and meanwhile, according to the data of example 1, the thallium removal rate can reach 99.99%, and the clear water has a strong thallium removal effect, while the comparative example 1 departs from the scope of the scheme of the present invention, the thallium removal effect is far lower than the thallium removal effect of the present invention, which further proves that the thallium removal method of the present invention is extremely cooperative and is absent, and only when thallium removal is strictly performed according to the scheme of the present invention, the thallium removal rate of 99.99% can be achieved.
Finally, it is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, which, however, is not to be taken as limiting the invention. It will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention, and these changes and modifications are to be considered as within the scope of the invention.
Claims (10)
1. A method of thallium removal comprising the steps of:
the thallium-containing wastewater is subjected to pH adjustment, electromagnetic impurity elimination, mixed reaction with the composite thallium-removing agent, filtration and disinfection, and then discharged.
2. A process according to claim 1 characterized in that the thallium containing wastewater is subjected to microelectrolysis prior to pH adjustment for preliminary degradation of organic contaminants in the wastewater;
during the micro-electrolysis treatment, the pH value of the thallium-containing wastewater is adjusted to be between 2.5 and 3.5.
3. The method as claimed in claim 1, wherein the electromagnetic elimination of impurities is performed by electromagnetic nanotechnology which removes impurities from water mainly by electromagnetic adsorption.
4. The method of claim 1 wherein the composite thallium removal agent comprises the following materials: 5-10 parts of activated carbon, 11-15 parts of urea, 2-8 parts of ethylenediamine, 16-20 parts of organic sulfur, 20-30 parts of activated clay, 11-15 parts of organic alkanes, 6-10 parts of heavy metal collector, 0.5-1 part of linear chain micromolecular amine substance, 3-6 parts of surfactant and 16-20 parts of ferrous chloride.
5. The method as claimed in claim 1, wherein the sludge produced by the filtration is subjected to membrane separation treatment for separating and returning sludge-containing treatment water containing activated sludge and the composite thallium-removing agent in the sludge for further reaction.
6. The method of claim 1, wherein after the wastewater is discharged, a portion of the wastewater is added with the disinfectant and then sprayed back, and the remaining portion is delivered to the user for use.
7. A wastewater treatment plant to which the thallium removal method according to any one of claims 1 to 6 is applied is characterized by comprising a conditioning tank for pH adjustment, an electromagnetic nano catalyst for electromagnetic impurity removal, a chemical dosing device for dosing the composite thallium removal agent into thallium-containing wastewater, a reaction tank for reacting the thallium-containing wastewater with the composite thallium removal agent, and a filtration and disinfection device for filtering and disinfecting the reacted wastewater, which are connected in sequence.
8. The wastewater treatment apparatus according to claim 7, wherein a conditioning tank lift pump is provided in the conditioning tank, a stirrer is provided in the reaction tank, and a sludge discharge pump is provided in the reaction tank.
9. The wastewater treatment plant according to claim 7, further comprising a sludge treatment system for dewatering sludge in the sludge tank and discharging the dewatered sludge.
10. The wastewater treatment plant according to claim 7, further comprising a plant room, wherein a control system is arranged in the plant room for detecting and controlling the whole plant.
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| CN202111663421.9A CN114380462A (en) | 2021-12-31 | 2021-12-31 | Thallium removal method and wastewater treatment device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011011103A (en) * | 2009-06-30 | 2011-01-20 | Sumitomo Osaka Cement Co Ltd | Method and apparatus for removing and recovering thallium from wastewater |
| CN105540946A (en) * | 2015-12-14 | 2016-05-04 | 株洲冶炼集团股份有限公司 | Process for removing thallium through microelectrolysis treatment of thallium-containing heavy metal wastewater |
| CN109437465A (en) * | 2018-11-29 | 2019-03-08 | 重庆大学 | A method of high-concentration industrial waste water containing thallium is removed using Manganese Ferrite |
| CN111689568A (en) * | 2020-05-15 | 2020-09-22 | 广州大学 | Zero-valent bimetal material and preparation method and application thereof |
| CN113526606A (en) * | 2021-08-17 | 2021-10-22 | 德蓝水技术股份有限公司 | Thallium removal agent and preparation method thereof |
-
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- 2021-12-31 CN CN202111663421.9A patent/CN114380462A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011011103A (en) * | 2009-06-30 | 2011-01-20 | Sumitomo Osaka Cement Co Ltd | Method and apparatus for removing and recovering thallium from wastewater |
| CN105540946A (en) * | 2015-12-14 | 2016-05-04 | 株洲冶炼集团股份有限公司 | Process for removing thallium through microelectrolysis treatment of thallium-containing heavy metal wastewater |
| CN109437465A (en) * | 2018-11-29 | 2019-03-08 | 重庆大学 | A method of high-concentration industrial waste water containing thallium is removed using Manganese Ferrite |
| CN111689568A (en) * | 2020-05-15 | 2020-09-22 | 广州大学 | Zero-valent bimetal material and preparation method and application thereof |
| CN113526606A (en) * | 2021-08-17 | 2021-10-22 | 德蓝水技术股份有限公司 | Thallium removal agent and preparation method thereof |
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Application publication date: 20220422 |