CN102259981A - Sequencing batch biological phosphorus and nitrogen removal process - Google Patents
Sequencing batch biological phosphorus and nitrogen removal process Download PDFInfo
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- CN102259981A CN102259981A CN 201110190983 CN201110190983A CN102259981A CN 102259981 A CN102259981 A CN 102259981A CN 201110190983 CN201110190983 CN 201110190983 CN 201110190983 A CN201110190983 A CN 201110190983A CN 102259981 A CN102259981 A CN 102259981A
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Abstract
The invention discloses a sequencing batch biological phosphorus and nitrogen removal process, which is suitable for sequencing batch biological phosphorus and nitrogen removal in low-carbon wastewater treatment. A non-aeration tank and an aeration tank are used for anaerobic, anoxic and aerobic biotreatment; during aeration in the aeration tank, a batch of sewage enters the non-aeration tank, and supernate is discharged from the non-aeration tank; when the batch of sewage totally enters the non-aeration tank, the aeration in the aeration tank is stopped, mud-water mixed solution in the aeration tank and mud-water mixed solution in the non-aeration tank are mixed, the mixing is stopped, the aeration in the aeration tank is carried out again, and the mud-water mixed solution in the non-aeration tank is subjected to mud-water separation; and a secondary sedimentation tank is not arranged, sewage reflux and internal reflux are avoided, the project investment and operating cost are greatly saved, the aeration quantity is reduced, the required carbon source is a few, the construction and operating cost is low, the floor area is small, and the problem that sewage is difficult to treat by phosphorus and nitrogen removal at high efficiency due to a low carbon source and an unbalanced ratio of carbon to nitrogen to phosphorus is better solved.
Description
Technical field
The present invention relates to the dirty water living creature processing technique field, especially a kind of sequence batch (biological dephosphorize denitrification technology that is applicable to low carbon source sewage disposal.
Background technology
In recent years, the problem of water environment pollution and body eutrophication is serious day by day.And nitrogen, phosphorus are the principal elements that causes body eutrophication.Along with the raising of Public Environmental Awareness and more and more stricter to the limitation standard of the discharging of nitrogen, phosphorus both at home and abroad, construction land is more and more nervous, research and development floor space sewage disposal technology, especially wastewater biological dephosphorization denitrogenation technology little, economical, that remove nitrogen, phosphorus efficiently are the focuses in water pollution control engineering field always.
Summary of the invention
Technical problem: the objective of the invention is to overcome the weak point in the prior art, provide a kind of energy consumption little, floor space is little, the sequence batch (biological dephosphorize denitrification technology that running cost is low.
Technical scheme: sequence batch (biological dephosphorize denitrification technology of the present invention, comprise and utilize not aeration tank and aeration tank to carry out anaerobism, anoxic and aerobic biological treatment, also comprise the steps:
A. in the aeration tank in the aeration, one batch sewage is fed not in the aeration tank, and never discharge supernatant liquor in the aeration tank;
B. when one batch sewage all enters not the aeration tank, stop the aeration in the aeration tank, with the muddy water mixed solution in the aeration tank and not the muddy water mixed solution in the aeration tank mix;
C. stop muddy water mixed solution and the not mixing of the muddy water mixed solution in the aeration tank in the aeration tank, carry out the aeration in the aeration tank once more, the muddy water mixed solution in the aeration tank does not carry out mud-water separation simultaneously;
D. repeating step a, b, c finish the next batch sewage disposal.
Described with the muddy water mixed solution in the aeration tank and not the muddy water mixed solution in the aeration tank to carry out the blended time be 0.01～10 hour; The described while, the time of carrying out mud-water separation of the muddy water mixed solution in the aeration tank was not 0～6 hour; Described aeration tank and not the aeration tank build jointly or divide and build.
Beneficial effect: the present invention makes full use of limited carbon source in conjunction with the advantage of method for biologically treating wastewater and sequence bioreactor, has improved the utilization ratio of carbon source in the wastewater treatment, has solved the insufficient problem of carbon source in the wastewater biological dephosphorization effectively.The mixing of the muddy water mixed solution in the Inlet and outlet water at intermittence by aeration tank not, the intermittent aeration of aeration tank and two ponds, do not make successively anaerobic state, anoxic condition, mud-water separation to occur in the aeration tank, successively occurred oxygen condition, anoxic condition, good oxygen condition in the aeration tank.Sewage directly enters the not aeration tank that is in anaerobic state, and limited carbon source is preferentially supplied with polyP bacteria, helps the dephosphorization of system; Muddy water mixed solution is not circulating between aeration tank and the aeration tank, and Liang Chijun is in anoxic condition, helps forming denitrification dephosphorization under anoxia condition, and denitrification denitrogenation and 2 self-contained process of suction phosphorus are united two into one, and a carbon is dual-purpose; The muddy water mixed solution in the aeration tank does not carry out mud-water separation, in the mud-water separation process, continues to finish anti-nitration reaction, reduces nitrite nitrogen and nitric nitrogen in returned sluge and the water outlet; When the muddy water mixed solution in the aeration tank did not carry out mud-water separation, its coprecipitation mode was for staticly settling, and sedimentation function is good, and effluent quality is excellent.The present invention need not second pond, and no mud refluxes and internal reflux, has saved mud and has refluxed and the internal reflux device, from many-sides such as civilwork engineering quantity, equipment costs, has saved construction investment greatly, and has saved working cost.Have save that aeration rate, required carbon source are less, construction and advantage such as working cost is low, floor space is little, solved because of carbon source on the low side, carbon, nitrogen, phosphorus ratio imbalance, and be difficult to realize the handling problem of the sewage of highly effective dephosphorizing denitrification.
Embodiment
The embodiments of the invention of becoming a partner below are further described:
Sequence batch (biological dephosphorize denitrification technology of the present invention utilizes not aeration tank and aeration tank to carry out anaerobism, anoxic and aerobic biological treatment, the aeration tank and not the aeration tank build jointly or divide and build.In the aeration tank, in the aeration, one batch sewage feeding is in the not aeration tank of anaerobic state, and never discharges supernatant liquor in the aeration tank; When one batch sewage all enters not the aeration tank, stop the aeration in the aeration tank, with the muddy water mixed solution in the aeration tank and not the muddy water mixed solution in the aeration tank mix, make the aeration tank and not two ponds, aeration tank all be in anoxic condition, muddy water mixed solution in the aeration tank and not the muddy water mixed solution blended time in the aeration tank require to determine according to sewage quality and effluent quality, be generally 0.01～10 hour; Stop muddy water mixed solution and the not mixing of the muddy water mixed solution in the aeration tank in the aeration tank afterwards, carry out the aeration in the aeration tank once more, simultaneously the muddy water mixed solution in the aeration tank does not carry out mud-water separation, and the time of mud-water separation is 0～6 hour, finishes one batch sewage disposal; Repeat said process, finish the sewage disposal of next batch, and regularly discharge excess sludge.In order to improve the concentration of the microorganism in the sequence batch (biological dephosphorize denitrification technology, realize better dephosphorization and denitrification effect, in not aeration tank and aeration tank, can be added to biofilm development the filler that adheres to medium is provided.
Claims (4)
1. sequence batch (biological dephosphorize denitrification technology comprises and utilizes not aeration tank and aeration tank to carry out anaerobism, anoxic and aerobic biological treatment, it is characterized in that comprising the steps:
A. in the aeration tank in the aeration, one batch sewage is fed not in the aeration tank, and never discharge supernatant liquor in the aeration tank;
B. when one batch sewage all enters not the aeration tank, stop the aeration in the aeration tank, with the muddy water mixed solution in the aeration tank and not the muddy water mixed solution in the aeration tank mix;
C. stop muddy water mixed solution and the not mixing of the muddy water mixed solution in the aeration tank in the aeration tank, carry out the aeration in the aeration tank once more, the muddy water mixed solution in the aeration tank does not carry out mud-water separation simultaneously;
D. repeating step a, b, c finish the next batch sewage disposal.
2. a kind of sequence batch (biological dephosphorize denitrification technology according to claim 1 is characterized in that: described with the muddy water mixed solution in the aeration tank and not the muddy water mixed solution in the aeration tank to carry out the blended time be 0.01～10 hour.
3. a kind of sequence batch (biological dephosphorize denitrification technology according to claim 1 is characterized in that: the described while, the time of carrying out mud-water separation of the muddy water mixed solution in the aeration tank was not 0～6 hour.
4. a kind of sequence batch (biological dephosphorize denitrification technology according to claim 1 is characterized in that: described aeration tank and not the aeration tank build jointly or divide and build.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101909836A CN102259981B (en) | 2011-07-08 | 2011-07-08 | Sequencing batch biological phosphorus and nitrogen removal process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101909836A CN102259981B (en) | 2011-07-08 | 2011-07-08 | Sequencing batch biological phosphorus and nitrogen removal process |
Publications (2)
| Publication Number | Publication Date |
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| CN102259981A true CN102259981A (en) | 2011-11-30 |
| CN102259981B CN102259981B (en) | 2012-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011101909836A Expired - Fee Related CN102259981B (en) | 2011-07-08 | 2011-07-08 | Sequencing batch biological phosphorus and nitrogen removal process |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102765808A (en) * | 2012-07-12 | 2012-11-07 | 中国矿业大学 | Mid-position aeration sequencing batch type biological dephosphorization and denitrifying process |
| CN103755025A (en) * | 2013-12-25 | 2014-04-30 | 中国矿业大学 | Double-membrane double-circulation sewage treatment process for enhancing denitrifying phosphorus removal |
| CN103787500A (en) * | 2014-01-20 | 2014-05-14 | 中国矿业大学 | Denitrifying-based phosphorus and nitrogen removal process for sequencing batch type two-sludge system |
| CN104386817A (en) * | 2014-11-11 | 2015-03-04 | 中国矿业大学 | Enhanced nitrogen and phosphorus removal process adopting mud water separation anaerobic/anoxic-membrane bioreactor |
| CN113023930A (en) * | 2021-01-28 | 2021-06-25 | 上海利顺环保工程有限公司 | Pure water waste liquid decrement process |
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| CN201437522U (en) * | 2009-07-28 | 2010-04-14 | 大连迈克环境科技工程有限公司 | Anaerobic hydrolysis and SBR coupling denitrifying dephosphatation device |
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2011
- 2011-07-08 CN CN2011101909836A patent/CN102259981B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR19990039419A (en) * | 1997-11-12 | 1999-06-05 | 임정규 | Wastewater treatment process and its operation method |
| US6875357B1 (en) * | 2000-03-15 | 2005-04-05 | Aqua-Aerobic Systems, Inc. | Process and apparatus for treatment of waste water |
| CN1544364A (en) * | 2003-11-17 | 2004-11-10 | 李迪田 | Propulsive and batched type activated sludge reaction process and device |
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| CN1686862A (en) * | 2005-03-29 | 2005-10-26 | 上海市政工程设计研究院 | Improved type alternated technique for wastewater treatment of activated sludge process and equipment |
| WO2007078047A1 (en) * | 2005-12-30 | 2007-07-12 | Essa Co., Ltd. | Apparatus for treatmenting of sewage using semi-batch and method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102765808A (en) * | 2012-07-12 | 2012-11-07 | 中国矿业大学 | Mid-position aeration sequencing batch type biological dephosphorization and denitrifying process |
| CN103755025A (en) * | 2013-12-25 | 2014-04-30 | 中国矿业大学 | Double-membrane double-circulation sewage treatment process for enhancing denitrifying phosphorus removal |
| CN103787500A (en) * | 2014-01-20 | 2014-05-14 | 中国矿业大学 | Denitrifying-based phosphorus and nitrogen removal process for sequencing batch type two-sludge system |
| CN104386817A (en) * | 2014-11-11 | 2015-03-04 | 中国矿业大学 | Enhanced nitrogen and phosphorus removal process adopting mud water separation anaerobic/anoxic-membrane bioreactor |
| CN113023930A (en) * | 2021-01-28 | 2021-06-25 | 上海利顺环保工程有限公司 | Pure water waste liquid decrement process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102259981B (en) | 2012-11-28 |
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Granted publication date: 20121128 Termination date: 20200708 |