CN104973731A - Domestic wastewater treatment method - Google Patents
Domestic wastewater treatment method Download PDFInfo
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- CN104973731A CN104973731A CN201510377805.2A CN201510377805A CN104973731A CN 104973731 A CN104973731 A CN 104973731A CN 201510377805 A CN201510377805 A CN 201510377805A CN 104973731 A CN104973731 A CN 104973731A
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Abstract
The invention belongs to the field of domestic wastewater treatment, and more specifically relates to a domestic wastewater treatment method. The domestic wastewater treatment method comprises following steps: domestic wastewater is collected by a drainage system, and is delivered into a grille well of a sewage treatment station; particular impurities of wastewater are removed in the grille well; wastewater is delivered into a regulating tank for homogenization treatment, is delivered into an A-grade biological contact oxidation pond for acidified hydrolysis, and nitrification and denitrification, and then is delivered into a 0-grade biological tank for aerobic biochemistry reaction, wherein most organic pollutants are degraded via biological oxidation and adsorption; effluent is delivered into a MBR pond for treatment, wherein after filtering via MBR membrane, obtained water automatically flows into a secondary sedimentation tank for solid-liquid separation; after treatment in the secondary sedimentation tank, obtained water is delivered into a clean water tank; and in the clean water tank, a supernate is subjected to sterilization with chlorine dioxide, and then is recycled or discharged. According to the domestic wastewater treatment method, organic matters in wastewater can be removed, and wastewater denitrification can be realized; buried structures are adopted by equipment used in the domestic wastewater treatment method; the upper parts of the equipment is covered with soil, and plantation of flowers and trees can be realized, so that the environment is beautified further.
Description
Technical field
The present invention relates to sanitary sewage disposal field, is one way of life sewage treatment process specifically.
Background technology
Along with the development of society; the protective awareness of people to environment strengthens gradually; sanitary sewage is as one of the important composition element of environmental pollution; receive the concern of people just gradually; and the content of BOD and COD is as an important indicator of sanitary sewage quality, its content is usually used to the pollution level weighing water body.Apply membrane technique in the treatment of waste water, effectively can purify waste water, some useful matteies can be reclaimed again, have simultaneously energy-conservation, without the feature such as phase transformation, equipment is simple, easy to operate.The new type water treatment reactor system one membrane bioreactor (MBR) that high performance membrane isolation technique combines with traditional activated sludge process, membrane separating process be with selectivity through film for separating medium, certain power in addition in both sides, feed side compositional selecting ground through film, thus reaches the object of separate substance.Flat membrane ultrafiltration is adopted to dispose of sewage waste water, effluent quality can reach national miscellaneous domestic water quality standard, and this treatment process to have floor space little, simple to operate, the advantages such as stable effluent quality, therefore MBR technology is applied in sewage disposal scheme, the dirty water decontamination handles can be realized preferably, " A/O/O bio-contact oxidation+MBR film " technique that this employing is conventional, this treatment process is comparatively simple, operation runs convenient, running cost is cheap, stable water outlet, major equipment is steel construction, consider surrounding enviroment and hygienic issues, therefore this sewage treatment project determines to adopt complete buried structure, top earthing, can planting, lawn, beautify the environment further.
Summary of the invention
In order to make up the deficiencies in the prior art, the invention provides one way of life sewage treatment process, adopt ripe A/O/O biochemical processing process+MBR membrane process, there is the organism in good removal sewage and good denitrification functions, to meet the requirement of emission standard, simultaneously, one way of life sewage treatment process all devices of the present invention all adopts buried structure, top earthing, can planting, lawn, beautify the environment further.
The technical solution adopted for the present invention to solve the technical problems is: one way of life sewage treatment process, and its step is as follows:
(1) sewage collecting, it is pending that sanitary sewage collects sewage works by water exhaust system unification.
(2) grille well process; one grid is set before sanitary sewage enters equalizing tank; in order to remove soft twister, more admittedly particle foreign material and the drift in sewage; thus protect follow-up work water pump work-ing life and reduce system work for the treatment of load; grille well can adopt B200 stainless (steel) wire to carry out processing and fabricating, needs regularly to clear for the foreign material produced in secondary operation.
(3) equalizing tank process, after sewage removes particle foreign material after grid process, enter equalizing tank and carry out the water yield, the adjustment homogenizing of water quality, ensure the subsequent biochemical treatment system water yield, the equilibrium of water quality, stable, dirty Organic substance in water plays certain degraded effect, improve shock resistance and the treatment effect of whole system, meeting generating portion foreign material at the bottom of pond in the process, need regularly to clear for the foreign material produced in secondary operation, in addition, fluid level controller and lift pump are set in equalizing tank, after liquid level controller transmission of signal, A level biological contact oxidation pond is delivered to by lift pump.
(4) A level biological tank process, sewage can mix further in A level biological tank, to make full use of in pond high-performance bio elastic filler as bacteria carrier, pre-treatment is carried out to the organism in sewage, be beneficial to the further oxygenolysis of rear road O level biological treatment tank, by facultative microbe, dissolved organic matter difficult in sewage is converted into resolvability organism, larger molecular organics is hydrolyzed into small organic molecule, pass through the nitre charcoal nitrogen of backflow under the effect of nitrifier simultaneously, can part nitrification and denitrification be carried out, remove ammonia nitrogen.
(5) O level biological tank process, mainly aerobic biochemical reaction is carried out in O level biological tank, O level biological tank is divided into two-stage, previous stage is under higher organic loading, biochemical degradation under jointly being participated in by the microflora being attached to a large amount of different generas on filler and adsorption, remove the various organic substances in sewage, organic content in sewage is significantly reduced, rear stage is when organic loading is lower, by the effect of nitrifier, ammonia nitrogen under the condition of oxygen amount abundance in degradation of sewage, also make the COD value in sewage be reduced to lower level simultaneously, sewage is purified.
(6) MBR pond process, flat membrane ultrafiltration is adopted to dispose of sewage waste water, effluent quality can reach national miscellaneous domestic water quality standard, and flat plate ultrafiltration membrane has good removal effect to suspended substance, larger molecular organics in waste water, and also there is good crown_interception to the anionic detergent that pre-treatment is difficult to be removed by flocculation, filtration.
(7) blower fan process, when sewage processes in O level biological tank and MBR pond, blower fan works, intermittently in two treating ponds, carry out intermittent ventilation treatment, object of ventilating in O level biological tank is to provide sufficient oxygen for the microorganism in O level biological tank, improve organic processing efficiency in sewage, object of ventilating in MBR pond is in order to Xiang Shuizhong passes into air, water is made to produce a large amount of micro bubbles, and short impurity particle adheres on micro bubble, form the buoyancy aid that proportion is less than water, upper floatation surface, thus the object reaching separating impurity.
(8) second pond process, sewage is divided into supernatant liquor and mud two portions in second pond after staticizing process, the mud produced by second pond, a part is back to A level biological treatment tank, another part mud regularly aspirates outward transport after sludge sump carries out sludge digestion, sludge sump supernatant liquor is back to equalizing tank reprocessing, and the setting of second pond can realize the circular treatment of sewage and mud, ensures the Disposal quality of sewage.
(9) clean water basin process, is provided with chlorine dioxide generator in clean water basin, and sewage is after second pond flows into, and the supernatant liquor in clean water basin is reuse or discharge after disinfection by chlorine dioxide.
Above-described grille well, equalizing tank, A level biological tank, O level biological tank, MBR pond, second pond, sludge sump, fluid level controller, lift pump, chlorine dioxide generator and blower fan all adopt buried structure, top earthing, can planting, lawn, beautify the environment further.
The invention has the beneficial effects as follows:
1. adopt ripe A/O/O biochemical processing process+MBR membrane process, can realize removing the organism in sewage and denitrification functions, to meet the requirement of emission standard;
2. there is good anti impulsion load ability, to adapt to the feature of water quality, water yield change;
3. adopt mud preposition backflow nitre solution technique, greatly reduce the growing amount of mud;
4. take into full account and affected the possibility that secondary pollution produces and be reduced to minimum level;
5. system treatment facility all can be arranged on below earth's surface, does not take up an area surface-area, can afforest, and is beneficial to again antifreeze.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further described.
Fig. 1 is process flow sheet of the present invention;
Fig. 2 is structural representation of the present invention.
Embodiment
The technique means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
As shown in Figure 1, one way of life sewage treatment process of the present invention, take the processing step of sewage disposal as follows:
1, sewage collecting: it is pending that sanitary sewage collects sewage works by water exhaust system unification.
2, grille well process: one grid is set before sanitary sewage enters equalizing tank; in order to remove soft twister, more admittedly particle foreign material and the drift in sewage; thus protect follow-up work water pump work-ing life and reduce system work for the treatment of load; grille well can adopt B200 stainless (steel) wire to carry out processing and fabricating, needs regularly to clear for the foreign material produced in secondary operation.
3, equalizing tank process: after sewage removes particle foreign material after grid process, enter equalizing tank and carry out the water yield, the adjustment homogenizing of water quality, ensure the subsequent biochemical treatment system water yield, the equilibrium of water quality, stable, dirty Organic substance in water plays certain degraded effect, improve shock resistance and the treatment effect of whole system, meeting generating portion foreign material at the bottom of pond in the process, need regularly to clear for the foreign material produced in secondary operation, in addition, fluid level controller and lift pump are set in equalizing tank, after liquid level controller transmission of signal, A level biological contact oxidation pond is delivered to by lift pump.
4, A level biological tank process: sewage can mix further in A level biological tank, to make full use of in pond high-performance bio elastic filler as bacteria carrier, pre-treatment is carried out to the organism in sewage, be beneficial to the further oxygenolysis of rear road O level biological treatment tank, by facultative microbe, dissolved organic matter difficult in sewage is converted into resolvability organism, larger molecular organics is hydrolyzed into small organic molecule, pass through the nitre charcoal nitrogen of backflow under the effect of nitrifier simultaneously, can part nitrification and denitrification be carried out, remove ammonia nitrogen.
5, O level biological tank process: O level biological tank is divided into two-stage, mainly aerobic biochemical reaction is carried out in O level biological tank, previous stage is under higher organic loading, biochemical degradation under jointly being participated in by the microflora being attached to a large amount of different generas on filler and adsorption, remove the various organic substances in sewage, organic content in sewage is significantly reduced, rear stage is when organic loading is lower, by the effect of nitrifier, ammonia nitrogen under the condition of oxygen amount abundance in degradation of sewage, also make the COD value in sewage and BOD value be reduced to lower level simultaneously, sewage is purified.
6, MBR pond process: adopt flat membrane ultrafiltration to dispose of sewage waste water, effluent quality can reach national miscellaneous domestic water quality standard, and flat plate ultrafiltration membrane has good removal effect to suspended substance, larger molecular organics in waste water, and also there is good crown_interception to the anionic detergent that pre-treatment is difficult to be removed by flocculation, filtration.
7, blower fan process: when sewage processes in O level biological tank and MBR pond, blower fan works, intermittently in two treating ponds, carry out intermittent ventilation treatment, object of ventilating in O level biological tank is to provide sufficient oxygen for the microorganism in O level biological tank, improve organic processing efficiency in sewage, object of ventilating in MBR pond is in order to Xiang Shuizhong passes into air, water is made to produce a large amount of micro bubbles, and short impurity particle adheres on micro bubble, form the buoyancy aid that proportion is less than water, upper floatation surface, thus the object reaching separating impurity.
8, second pond process: sewage is divided into supernatant liquor and mud two portions in second pond after staticizing process, the mud produced by second pond, a part is back to A level biological treatment tank, another part mud regularly aspirates outward transport after sludge sump carries out sludge digestion, sludge sump supernatant liquor is back to equalizing tank reprocessing, the setting of second pond can realize the circular treatment of sewage and mud, ensures the Disposal quality of sewage.
9, clean water basin process: be provided with chlorine dioxide generator in clean water basin, sewage is after second pond flows into, and the supernatant liquor in clean water basin is reuse or discharge after disinfection by chlorine dioxide.
As follows by unit facility treatment effect analytical table each in domestic sewage treatment process of the present invention:
| Sequence number | Treatment facility | CODcr | BOD5 | SS |
| 0 | Former water (mg/L) | 300 | 200 | 200 |
| 1 | Grid | / | / | 100 |
| 2 | Equalizing tank | 300 | 160 | 80 |
| 3 | A level treating pond | 200 | 100 | 50 |
| 4 | O level treating pond | 80 | 50 | 30 |
| 5 | MBR pond | ≤50 | ≤10 | ≤10 |
| 6 | Total removal rate % | 80％ | 90％ | 90％ |
Can be found out by upper table, in sewage, the content of COD and BOD is significantly removed, also can realize removing the organism in sewage and denitrification functions simultaneously, greatly reduce the infringement of sanitary sewage to environment, grille well described in this technique, equalizing tank, A level biological tank, O level biological tank, MBR pond, second pond, sludge sump, fluid level controller, lift pump, chlorine dioxide generator and blower fan all adopt buried structure simultaneously, top earthing, can planting, lawn, beautify the environment further.
More than show and describe ultimate principle of the present invention, principal character and advantage.The technician of the industry should understand; the present invention is not restricted to the described embodiments; description in above-described embodiment and specification sheets principle of the present invention is just described; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (3)
1. one way of life sewage treatment process, is characterized in that: concrete steps are as follows:
(1) sewage collecting: it is pending that sanitary sewage collects sewage works by water exhaust system unification.
(2) grille well process: arrange one grid before sanitary sewage enters equalizing tank, the foreign material under being retained by grid regularly load dolly and are poured onto refuse tip.
(3) equalizing tank process: sewage enters the adjustment homogenizing that equalizing tank carries out the water yield, water quality, and arranges fluid level controller and lift pump in equalizing tank, after liquid level controller transmission of signal, delivers to A level biological contact oxidation pond by lift pump.
(4) A level biological tank process: sewage mixes further in A level biological tank, to utilize in pond high-performance bio elastic filler as bacteria carrier, to be degraded Organic substance in water by facultative microbe, by the effect of nitrifier, part nitrification and denitrification be carried out to sewage simultaneously.
(5) O level biological tank process: O level biological tank is divided into two-stage, previous stage is under higher organic loading, under melodious state, Biochemical degraded and adsorption is carried out by the different microorganisms group be attached on filler, rear stage is when organic loading is lower, by the effect of nitrifier, ammonia nitrogen under the condition of oxygen amount abundance in degradation of sewage, also makes the COD value in sewage be reduced to lower level simultaneously.
(6) MBR pond process: adopt flat membrane ultrafiltration to dispose of sewage.
(7) blower fan process: when sewage processes in O level biological tank and MBR pond, blower fan work, carries out intermittent air feed in two ponds.
(8) second pond process: sewage is divided into supernatant liquor and mud two portions in second pond after staticizing process.
(9) clean water basin process: be provided with chlorine dioxide generator in clean water basin, sewage is after second pond flows into, and the supernatant liquor in clean water basin is reuse or discharge after disinfection by chlorine dioxide.
2. one way of life sewage treatment process according to claim 2, it is characterized in that: the foreign material under being retained by grille well regularly load dolly and are poured onto refuse tip, the mud produced by second pond, a part is back to A level biological treatment tank, another part mud regularly aspirates outward transport after sludge sump carries out sludge digestion, and sludge sump supernatant liquor is back to equalizing tank reprocessing.
3. one way of life sewage treatment process according to claim 2, is characterized in that: described grille well, equalizing tank, A level biological tank, O level biological tank, MBR pond, second pond, sludge sump, fluid level controller, lift pump, chlorine dioxide generator and blower fan all adopt buried structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510377805.2A CN104973731A (en) | 2015-06-29 | 2015-06-29 | Domestic wastewater treatment method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510377805.2A CN104973731A (en) | 2015-06-29 | 2015-06-29 | Domestic wastewater treatment method |
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| CN104973731A true CN104973731A (en) | 2015-10-14 |
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| CN201510377805.2A Pending CN104973731A (en) | 2015-06-29 | 2015-06-29 | Domestic wastewater treatment method |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105502818A (en) * | 2015-12-11 | 2016-04-20 | 凯天环保科技股份有限公司 | Membrane component and MBR (Membrane Biological Reaction) system applying same |
| CN105502856A (en) * | 2016-02-11 | 2016-04-20 | 潘正艳 | Wastewater treatment equipment |
| CN105645690A (en) * | 2016-02-25 | 2016-06-08 | 陈东东 | Treatment system for removing detergent from domestic wastewater |
| CN105693020A (en) * | 2016-02-25 | 2016-06-22 | 陈东东 | Treatment method for removing detergent in domestic wastewater |
| CN105923923A (en) * | 2016-06-24 | 2016-09-07 | 成都孚华环保科技有限公司 | Three-dimensional biological rotating disk A-RBC sewage treating process |
| CN105948382A (en) * | 2016-05-12 | 2016-09-21 | 安徽国能亿盛环保科技有限公司 | Domestic sewage treatment process |
| CN107010784A (en) * | 2017-04-23 | 2017-08-04 | 武鸣县南方制绳厂 | Sisal hemp sewage disposal device |
| CN108675545A (en) * | 2018-05-02 | 2018-10-19 | 江苏大彭环保科技有限公司 | A kind for the treatment of process of civil engineering sanitary sewage |
| CN108911434A (en) * | 2018-09-06 | 2018-11-30 | 天津睿莱克斯环保工程有限公司 | Without pipe network domestic sewerage total system |
| CN109292978A (en) * | 2018-11-20 | 2019-02-01 | 山东和正环保工程有限公司 | A four-meter water treatment device that is convenient for centralized treatment of sewage |
| CN109592847A (en) * | 2018-12-25 | 2019-04-09 | 北京鑫晟环能科技发展有限公司 | Oil production waste water in oil field processing method |
| CN110590068A (en) * | 2019-09-27 | 2019-12-20 | 李卫星 | Sewage recycling system that district was used |
| CN110790458A (en) * | 2019-11-26 | 2020-02-14 | 张广富 | Economic, environment-friendly and efficient septic tank treatment station and use method |
| CN111606507A (en) * | 2020-05-20 | 2020-09-01 | 苏州首创嘉净环保科技股份有限公司 | Integrated equipment for medical sewage disinfection treatment |
| CN111892243A (en) * | 2020-07-30 | 2020-11-06 | 戴思乐科技集团有限公司 | Double-membrane integrated sewage treatment equipment |
| CN113371953A (en) * | 2021-07-27 | 2021-09-10 | 深圳市时之洁生态环境科技有限公司 | Comprehensive sewage treatment and recycling method for expressway service area |
| CN114163071A (en) * | 2021-11-18 | 2022-03-11 | 吴红斌 | River course water treatment system and cooperate its feeding device that uses |
-
2015
- 2015-06-29 CN CN201510377805.2A patent/CN104973731A/en active Pending
Non-Patent Citations (1)
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| 王之晖等: "组合MBR工艺中试系统处理高氨氮生活污水", 《环境科学研究》 * |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105502818A (en) * | 2015-12-11 | 2016-04-20 | 凯天环保科技股份有限公司 | Membrane component and MBR (Membrane Biological Reaction) system applying same |
| CN105502856A (en) * | 2016-02-11 | 2016-04-20 | 潘正艳 | Wastewater treatment equipment |
| CN105645690A (en) * | 2016-02-25 | 2016-06-08 | 陈东东 | Treatment system for removing detergent from domestic wastewater |
| CN105693020A (en) * | 2016-02-25 | 2016-06-22 | 陈东东 | Treatment method for removing detergent in domestic wastewater |
| CN105693020B (en) * | 2016-02-25 | 2018-03-02 | 林权豪 | The processing method of detergent in a kind of removal sanitary wastewater |
| CN105948382A (en) * | 2016-05-12 | 2016-09-21 | 安徽国能亿盛环保科技有限公司 | Domestic sewage treatment process |
| CN105923923A (en) * | 2016-06-24 | 2016-09-07 | 成都孚华环保科技有限公司 | Three-dimensional biological rotating disk A-RBC sewage treating process |
| CN107010784A (en) * | 2017-04-23 | 2017-08-04 | 武鸣县南方制绳厂 | Sisal hemp sewage disposal device |
| CN108675545A (en) * | 2018-05-02 | 2018-10-19 | 江苏大彭环保科技有限公司 | A kind for the treatment of process of civil engineering sanitary sewage |
| CN108911434A (en) * | 2018-09-06 | 2018-11-30 | 天津睿莱克斯环保工程有限公司 | Without pipe network domestic sewerage total system |
| CN109292978A (en) * | 2018-11-20 | 2019-02-01 | 山东和正环保工程有限公司 | A four-meter water treatment device that is convenient for centralized treatment of sewage |
| CN109592847A (en) * | 2018-12-25 | 2019-04-09 | 北京鑫晟环能科技发展有限公司 | Oil production waste water in oil field processing method |
| CN110590068A (en) * | 2019-09-27 | 2019-12-20 | 李卫星 | Sewage recycling system that district was used |
| CN110790458A (en) * | 2019-11-26 | 2020-02-14 | 张广富 | Economic, environment-friendly and efficient septic tank treatment station and use method |
| CN111606507A (en) * | 2020-05-20 | 2020-09-01 | 苏州首创嘉净环保科技股份有限公司 | Integrated equipment for medical sewage disinfection treatment |
| CN111892243A (en) * | 2020-07-30 | 2020-11-06 | 戴思乐科技集团有限公司 | Double-membrane integrated sewage treatment equipment |
| CN113371953A (en) * | 2021-07-27 | 2021-09-10 | 深圳市时之洁生态环境科技有限公司 | Comprehensive sewage treatment and recycling method for expressway service area |
| CN114163071A (en) * | 2021-11-18 | 2022-03-11 | 吴红斌 | River course water treatment system and cooperate its feeding device that uses |
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