CN101767902A - Method for treating rural wastewater - Google Patents
Method for treating rural wastewater Download PDFInfo
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- CN101767902A CN101767902A CN200910186883A CN200910186883A CN101767902A CN 101767902 A CN101767902 A CN 101767902A CN 200910186883 A CN200910186883 A CN 200910186883A CN 200910186883 A CN200910186883 A CN 200910186883A CN 101767902 A CN101767902 A CN 101767902A
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Abstract
The invention discloses a method for treating rural wastewater, which comprises the following steps: pretreating of the wastewater through a grating and an oil separating tank, denitrifying and dephosphorizing through anaerobic-anoxic-aerobic-membrane bioreactor process, further purifying of the wastewater in a wetland treatment system and wastewater emission after reaching standards, thereby protecting the living environment and body health of farmers.
Description
Technical field
The present invention relates to a kind of method for treating rural wastewater.
Background technology
Existing Rural Waste Water is generally handled by simple biodegradation method, at first cure by oxygen therapy to sewage by equipment such as blower fans, cultivate biological inoculum and microorganism, by bacterial classification and microorganism a part of organism in the sewage is decomposed into materials such as free of contamination carbonic acid gas, water then, the sub-fraction organism synthesizes cellular material in addition, impel microorganisms grow, and discharge, make the sewage discharging that is purified with the form of excess sludge.This biological degradation treatment process can not effectively be removed nitrogen and the phosphorus that contains in the sewage, and then during sewage discharge, nitrogen and phosphorus can exceed standard usually, are discharged into the eutrophication that very easily causes water body in the rivers and lakes, influence the healthy of environmental health and peasant.
Summary of the invention
The object of the present invention is to provide a kind of method for treating rural wastewater that adopts anaerobic-anoxic-aerobic-membrane biological reactor process and wetland treatment process.
In order to reach above purpose, the technical solution used in the present invention is: a kind of method for treating rural wastewater may further comprise the steps:
(1) waste water enters pretreatment system, removes the suspended substance in the water;
(2) enter equalizing tank through pretreated waste water, carry out the adjustment of water quality and quantity;
(3) from the waste water of described equalizing tank output successively through anaerobic pond, anoxic pond, the aerobic aeration pond, membrane bioreactor reacts, in described anaerobic pond, this waste water with from the backflow liquid phase hybrid reaction in the described anoxic pond, discharge phosphorus, the reaction solution that obtains enters described anoxic pond, reaction solution described in this anoxic pond with from the backflow liquid phase hybrid reaction of described membrane bioreactor, described reaction solution is carried out denitrogenation, pass back into the described anaerobic pond from the output liquid of described anoxic pond output, or enter described aerobic aeration pond, removing organism and to carry out the nitrated of ammonia nitrogen, and then enter described membrane bioreactor;
(4) in described membrane bioreactor, under aeration condition, further remove organism and carry out nitration reaction from the output liquid of described Aerobic Pond, and picked-up phosphorus, the reaction solution of this nitration reaction is back to and carries out denitrification in the described anoxic pond, described membrane bioreactor is under the condition of negative pressure that suction pump produces, and the reaction solution in this reactor is finished filtration treatment through film;
(5) filtered liquid through membrane filtration enters wet land treating system, and this filtered liquid is purified.
Described pretreatment system comprises grid, oil trap, and waste water is removed suspended particle through described grid, removes the suspension oil droplet through described oil trap again.
Described wet land treating system is the natural wetland treatment system, and in this system, described filtered liquid often is in the water saturation state along soil, and growth has the swampland of water-fast plant to flow, in flow process, under water-fast plant and soil combined action, water quality is purified.
Because the present invention has adopted above technical scheme; its advantage is: employing anaerobic-anoxic-aerobic-membrane biological reactor process can effectively be removed nitrogen and the phosphorus in the waste water; can further purify water quality by wet land treating system again; peasant's living environment and healthy has been protected in discharging again after making pollutants in waste water up to standard.
Embodiment
Below further set forth concrete structure of the present invention.
A kind of method for treating rural wastewater after pre-treatment, by anaerobic-anoxic-aerobic-membrane biological reactor process, carries out denitrogenation dephosphorizing, and then enters wet land treating system earlier, and waste water is further purified.Biological denitrificaion is undertaken by the nitrification and denitrification reaction, specifically, organonitrogen in the waste water, inorganic nitrogen etc. at first are converted into ammonia nitrogen by ammonifying bacteria under aerobic condition, the nitrate nitrogen of then under the effect of nitrococcus and nitrifier, programming, this process is called aerobic nitrification, subsequently under anoxia condition, by the denitrifying bacteria effect, and have additional carbon that energy is provided, make nitrate-nitrogen reduction become nitrogen from waste water, to overflow.Dephosphorization is undertaken by polyP bacteria, utilizes the polyP bacteria in the waste water under anaerobic to be constrained, and discharges intravital phosphoric acid salt, and generate energy is in order to absorbing quick degradation of organic substances, and is converted into poly-B hydroxybutyric acid and stores.The poly-B hydroxybutyric acid generate energy of just degrading when these polyP bacterias enter aerobic condition and storing in the body is used for the synthetic and excessive absorption waste water dissolved phosphorus of cell, thereby reaches the purpose of dephosphorization.
In present method, Rural Waste Water is collected through sewer line and is confluxed to waste water station, and waste water is removed suspended particulate through grid, removes the suspension oil droplet through oil trap again, flows into equalizing tank then, carries out the adjustment of water quality and quantity; From the waste water of equalizing tank output successively through anaerobic pond, anoxic pond, the aerobic aeration pond, membrane bioreactor reacts, in anaerobic pond, waste water with from the backflow liquid phase hybrid reaction in the anoxic pond, polyP bacteria discharges phosphorus, the reaction solution that obtains enters anoxic pond, in this anoxic pond reaction solution with from the backflow liquid phase hybrid reaction of membrane bioreactor, reaction solution is carried out denitrogenation, pass back into the anaerobic pond from the output liquid of anoxic pond output, or enter the aerobic aeration pond, can remove organism and carry out the nitrated of ammonia nitrogen by the aerobic aeration pond, and then enter membrane bioreactor; Membrane bioreactor can be trapped in activated sludge particles and microorganism in the biological reaction tank, under aeration condition, further remove organism and carry out nitration reaction from the output liquid of Aerobic Pond, and picked-up phosphorus, the reaction solution of this nitration reaction is back to and carries out denitrification in the anoxic pond, membrane bioreactor is under the condition of negative pressure that suction pump produces, reaction solution in this bio-reactor is finished filtration treatment through film, can realize mud-water separation by this filtration treatment, filtered liquid through membrane filtration enters wet land treating system, and this filtered liquid is purified.
In membrane bioreactor, pass through aeration, oxygen is provided on the one hand, produce the surface that the membrane module tubular fibre is washed away in turbulent fluctuation by aeration on the other hand, prevent the surface of particle plugging membrane module, carry out aeration in the membrane bioreactor, can think that membrane bioreactor is an Aerobic Pond, organism is carried out the nitration reaction of oxidation and ammonia nitrogen, can also the filtering pathogenic micro-organism.
Wet land treating system is often to be in the water saturation state with rendering to soil through the filtered liquid of membrane filtration, and production has on the swampland of water-fast plants such as reed, cattail, filtered liquid flows in a certain direction, in flow process, under water-fast plant and soil combined action, water quality is purified, wet land treating system is many-sided to the mechanism of action of sewage purification, and absorption, the sorption on physics settlement action, root system of plant interception, chemical precipitation, soil and root system of plant surface, the metabolism of microorganism are arranged.But the water outlet qualified discharge of wet land treating system.
Method of the present invention can be administered Rural Waste Water, make pollutants in waste water up to standard after discharging again, protected peasant's living environment.
Claims (3)
1. method for treating rural wastewater may further comprise the steps:
(1) waste water enters pretreatment system, removes the suspended substance in the water;
It is characterized in that:
(2) enter equalizing tank through pretreated waste water, carry out the adjustment of water quality and quantity;
(3) from the waste water of described equalizing tank output successively through anaerobic pond, anoxic pond, the aerobic aeration pond, membrane bioreactor reacts, in described anaerobic pond, this waste water with from the backflow liquid phase hybrid reaction in the described anoxic pond, discharge phosphorus, the reaction solution that obtains enters described anoxic pond, reaction solution described in this anoxic pond with from the backflow liquid phase hybrid reaction of described membrane bioreactor, described reaction solution is carried out denitrogenation, pass back into the described anaerobic pond from the output liquid of described anoxic pond output, or enter described aerobic aeration pond, removing organism and to carry out the nitrated of ammonia nitrogen, and then enter described membrane bioreactor;
(4) in described membrane bioreactor, under aeration condition, further remove organism and carry out nitration reaction from the output liquid of described Aerobic Pond, and picked-up phosphorus, the reaction solution of this nitration reaction is back to and carries out denitrification in the described anoxic pond, described membrane bioreactor is under the condition of negative pressure that suction pump produces, and the reaction solution in this reactor is finished filtration treatment through film;
(5) filtered liquid through membrane filtration enters wet land treating system, and this filtered liquid is purified.
2. treatment process according to claim 1 is characterized in that: described pretreatment system comprises grid, oil trap, and waste water is removed suspended particle through described grid, removes the suspension oil droplet through described oil trap again.
3. treatment process according to claim 1, it is characterized in that: described wet land treating system is the natural wetland treatment system, in this system, described filtered liquid often is in the water saturation state along soil, and growth has the swampland of water-fast plant to flow, in flow process, under water-fast plant and soil combined action, water quality is purified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910186883 CN101767902B (en) | 2009-12-31 | 2009-12-31 | Method for treating rural wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910186883 CN101767902B (en) | 2009-12-31 | 2009-12-31 | Method for treating rural wastewater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101767902A true CN101767902A (en) | 2010-07-07 |
| CN101767902B CN101767902B (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910186883 Expired - Fee Related CN101767902B (en) | 2009-12-31 | 2009-12-31 | Method for treating rural wastewater |
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| CN (1) | CN101767902B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102180562A (en) * | 2011-03-10 | 2011-09-14 | 农业部环境保护科研监测所 | System and method for treating rural life sewage based on speed grow willow |
| CN103145300A (en) * | 2013-03-27 | 2013-06-12 | 四川省水处理及资源化工程技术研究中心 | Sewage treatment system |
| CN103771666A (en) * | 2014-02-17 | 2014-05-07 | 新乡学院 | Energy-saving slaughter wastewater treatment method |
| CN105645683A (en) * | 2016-01-12 | 2016-06-08 | 浙江大学 | Structural-filler-reinforced rural domestic and catering wastewater treatment plant and method |
| CN108975625A (en) * | 2018-08-18 | 2018-12-11 | 江苏澳洋生态园林股份有限公司 | A kind of artificial wet land system with recovery of nitrogen and phosphorus effect |
| CN109111050A (en) * | 2018-09-29 | 2019-01-01 | 湖南新九方科技有限公司 | Solar energy microkinetic rural sewage treatment system |
| CN109111052A (en) * | 2018-09-30 | 2019-01-01 | 湖南新九方科技有限公司 | The polynary rural sewage treatment system of landscape |
| CN110407416A (en) * | 2019-08-12 | 2019-11-05 | 常州大学 | A method for removing steroid estrogen in rural domestic sewage |
| CN110981105A (en) * | 2019-12-25 | 2020-04-10 | 甘肃昊宇环保科技有限公司 | Combined rural domestic sewage treatment system |
| CN112939379A (en) * | 2021-04-19 | 2021-06-11 | 南京理工大学 | Advanced treatment method for industrial production wastewater of lithium battery |
| CN114249498A (en) * | 2021-12-22 | 2022-03-29 | 陈辉 | Village and town sewage treatment equipment and treatment method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004011377A2 (en) * | 2002-07-26 | 2004-02-05 | The Regents Of The University Of California | Treatment of wastewater by biological and membrane separation technologies |
| TWI313187B (en) * | 2003-11-21 | 2009-08-11 | Ind Tech Res Inst | System for the treatment of organic containing waste water |
| CN1772651B (en) * | 2005-10-09 | 2011-09-14 | 徐祖信 | Countryside sewage treating method |
-
2009
- 2009-12-31 CN CN 200910186883 patent/CN101767902B/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102180562A (en) * | 2011-03-10 | 2011-09-14 | 农业部环境保护科研监测所 | System and method for treating rural life sewage based on speed grow willow |
| CN103145300A (en) * | 2013-03-27 | 2013-06-12 | 四川省水处理及资源化工程技术研究中心 | Sewage treatment system |
| CN103145300B (en) * | 2013-03-27 | 2015-09-16 | 四川省水处理及资源化工程技术研究中心 | A kind of sewage disposal and regeneration Apparatus for () and method therefor |
| CN103771666A (en) * | 2014-02-17 | 2014-05-07 | 新乡学院 | Energy-saving slaughter wastewater treatment method |
| CN103771666B (en) * | 2014-02-17 | 2014-11-19 | 新乡学院 | An energy-saving treatment method for slaughter wastewater |
| CN105645683A (en) * | 2016-01-12 | 2016-06-08 | 浙江大学 | Structural-filler-reinforced rural domestic and catering wastewater treatment plant and method |
| CN105645683B (en) * | 2016-01-12 | 2018-03-16 | 浙江大学 | The life in the countryside that structured packing is strengthened and restaurant wastewater treatment device and its method |
| CN108975625B (en) * | 2018-08-18 | 2021-03-09 | 江苏澳洋生态园林股份有限公司 | Constructed wetland system with nitrogen and phosphorus recovery function |
| CN108975625A (en) * | 2018-08-18 | 2018-12-11 | 江苏澳洋生态园林股份有限公司 | A kind of artificial wet land system with recovery of nitrogen and phosphorus effect |
| CN109111050A (en) * | 2018-09-29 | 2019-01-01 | 湖南新九方科技有限公司 | Solar energy microkinetic rural sewage treatment system |
| CN109111052A (en) * | 2018-09-30 | 2019-01-01 | 湖南新九方科技有限公司 | The polynary rural sewage treatment system of landscape |
| CN110407416A (en) * | 2019-08-12 | 2019-11-05 | 常州大学 | A method for removing steroid estrogen in rural domestic sewage |
| CN110981105A (en) * | 2019-12-25 | 2020-04-10 | 甘肃昊宇环保科技有限公司 | Combined rural domestic sewage treatment system |
| CN112939379A (en) * | 2021-04-19 | 2021-06-11 | 南京理工大学 | Advanced treatment method for industrial production wastewater of lithium battery |
| CN114249498A (en) * | 2021-12-22 | 2022-03-29 | 陈辉 | Village and town sewage treatment equipment and treatment method thereof |
| CN114249498B (en) * | 2021-12-22 | 2024-01-12 | 厦门裕清水环保工程有限公司 | Village and town sewage treatment equipment and treatment method thereof |
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| Publication number | Publication date |
|---|---|
| CN101767902B (en) | 2013-01-23 |
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