CN102259981B - Sequencing batch biological phosphorus and nitrogen removal process - Google Patents

Sequencing batch biological phosphorus and nitrogen removal process Download PDF

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Publication number
CN102259981B
CN102259981B CN2011101909836A CN201110190983A CN102259981B CN 102259981 B CN102259981 B CN 102259981B CN 2011101909836 A CN2011101909836 A CN 2011101909836A CN 201110190983 A CN201110190983 A CN 201110190983A CN 102259981 B CN102259981 B CN 102259981B
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China
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aeration tank
aeration
mixed solution
water mixed
mud
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CN2011101909836A
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CN102259981A (en
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李燕
张雁秋
刁智俊
孟娜
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China University of Mining and Technology CUMT
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China University of Mining and Technology CUMT
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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

A kind of sequence batch (biological dephosphorize denitrification technology
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 WWT.
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 is more and more stricter to the limitation standard of the discharging of nitrogen, phosphorus with 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 in the aeration tank;
B. when one batch sewage all gets into 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 accomplish the next batch WWT.
Said 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 said 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 combines the advantage of method for biologically treating wastewater and sequence bioreactor, makes full use of limited carbon source, 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 through 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 gets into 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 under anoxia condition, forming denitrification dephosphorization, and 2 self-contained process of denitrification denitrogenation and 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 accomplish 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 practiced thrift 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 are below done further to describe:
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 in the aeration tank; When one batch sewage all gets into 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, the muddy water mixed solution in the aeration tank and not the muddy water mixed solution blended time in the aeration tank require to confirm 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, accomplishes one batch WWT; Repeat said process, accomplish the WWT of next batch, and regularly discharge excess sludge.In order to improve the concentration of the mikrobe 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 (3)

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 in the aeration tank;
B. when one batch sewage all gets into 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 accomplish the next batch WWT.
2. a kind of sequence batch (biological dephosphorize denitrification technology according to claim 1 is characterized in that: said 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 said while, the time of carrying out mud-water separation of the muddy water mixed solution in the aeration tank was not 0~6 hour.
CN2011101909836A 2011-07-08 2011-07-08 Sequencing batch biological phosphorus and nitrogen removal process Expired - Fee Related CN102259981B (en)

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Application Number Priority Date Filing Date Title
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CN102259981B true CN102259981B (en) 2012-11-28

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
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
CN103755025B (en) * 2013-12-25 2015-05-13 中国矿业大学 Double-membrane double-circulation sewage treatment process for enhancing denitrifying phosphorus removal
CN103787500B (en) * 2014-01-20 2015-09-09 中国矿业大学 A kind of sequence batch (driving by double-energy denitrification dephosphorization denitrification technique
CN104386817B (en) * 2014-11-11 2015-10-14 中国矿业大学 A kind of strengthening mud-water separation detests/anoxic-membrane bioreactor denitrification dephosphorization technique

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990039419A (en) * 1997-11-12 1999-06-05 임정규 Wastewater treatment process and its operation method
CN1544364A (en) * 2003-11-17 2004-11-10 李迪田 Propulsive and batched type activated sludge reaction process and device
US6875357B1 (en) * 2000-03-15 2005-04-05 Aqua-Aerobic Systems, Inc. Process and apparatus for treatment of waste water
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
CN1938232A (en) * 2004-02-20 2007-03-28 奥加尼卡有限公司 Equipment for the biological activated sludge treatment of waste-water and procedure for its operation
WO2007078047A1 (en) * 2005-12-30 2007-07-12 Essa Co., Ltd. Apparatus for treatmenting of sewage using semi-batch and method thereof
CN101186386A (en) * 2007-12-06 2008-05-28 诸暨菲达宏宇环保设备有限公司 Integrate highly effective low-consume town integrated sewage treatment technique
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

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN1938232A (en) * 2004-02-20 2007-03-28 奥加尼卡有限公司 Equipment for the biological activated sludge treatment of waste-water and procedure for its operation
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
CN101186386A (en) * 2007-12-06 2008-05-28 诸暨菲达宏宇环保设备有限公司 Integrate highly effective low-consume town integrated sewage treatment technique
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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