CN102276062A - Multistage anaerobic and anoxic circulating final segment aerobic activated sludge process - Google Patents

Multistage anaerobic and anoxic circulating final segment aerobic activated sludge process Download PDF

Info

Publication number
CN102276062A
CN102276062A CN 201110132025 CN201110132025A CN102276062A CN 102276062 A CN102276062 A CN 102276062A CN 201110132025 CN201110132025 CN 201110132025 CN 201110132025 A CN201110132025 A CN 201110132025A CN 102276062 A CN102276062 A CN 102276062A
Authority
CN
China
Prior art keywords
pond
anoxic
combination
aerobic
anaerobic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN 201110132025
Other languages
Chinese (zh)
Inventor
张雁秋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China University of Mining and Technology CUMT
Original Assignee
China University of Mining and Technology CUMT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China University of Mining and Technology CUMT filed Critical China University of Mining and Technology CUMT
Priority to CN 201110132025 priority Critical patent/CN102276062A/en
Publication of CN102276062A publication Critical patent/CN102276062A/en
Pending legal-status Critical Current

Links

Abstract

The invention discloses a multistage anaerobic and anoxic circulating final segment aerobic activated sludge process. The process comprises the following steps of: alternatively connecting a plurality of anoxic ponds with a plurality of aerobic ponds, connecting each anoxic pond with an anaerobic pond, and forming a combination by an anoxic pond, a next anaerobic pond connected with the anoxic pond and an aerobic pond connected with the anaerobic pond; and splitting sewage, making the split sewage enter the anaerobic pond and a secondary sedimentation pond of each combination simultaneously, mixing the sewage entering the anaerobic pond with a mud-water mixed liquor entering the anaerobic pond from the anoxic pond of the combination, circulating the mixture between the anaerobic pond and the anoxic pond of the combination, making the mud-water mixed liquor flowing out of the anaerobic pond of each combination enter the aerobic pond of the combination, making the mud-water mixed liquor flowing out of the aerobic pond enter the anoxic pond of a next combination, and making the mud-water mixed liquor flowing out of the aerobic pond of the last combination enter the secondary sedimentation pond. The process is most suitable for treating urban domestic sewage, and has the advantages of saving in aeration amount and need of a small quantity of carbon sources; and the problem of difficulty in efficiently removing nitrogen and phosphorus from urban sewage, caused by a small quantity of carbon sources and the ratio imbalance of carbon, nitrogen and phosphorus is well solved.

Description

A kind of multistage anaerobism anoxic circulation rear aerobic activated sludge technology
Technical field
The present invention relates to biological dephosphorize denitrification technology, especially a kind of multistage anaerobism anoxic circulation rear aerobic activated sludge technology that is applicable to that low carbon source city domestic sewage is handled.
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, sewage disposal technology, especially wastewater biological dephosphorization denitrogenation technology that research and development are economical, 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 that a kind of technology is simple, energy consumption is less, the multistage anaerobism anoxic circulation rear aerobic activated sludge technology that cost is low.
Technical scheme: multistage anaerobism anoxic circulation rear aerobic activated sludge technology of the present invention, comprise anoxic, anaerobic and aerobic biological treatment, and precipitate, discharge supernatant liquor in the precipitation, simultaneously part mud is refluxed, process steps is as follows:
A. a plurality of anoxic pond, a plurality of Aerobic Pond alternately are communicated with, each anoxic pond all is connected with an anaerobic pond, forms a plurality of combinations of forming by an anoxic pond, with a back anaerobic pond of this anoxic pond connection and the Aerobic Pond that links to each other with this anoxic pond;
B. sewage separation is entered simultaneously the anaerobic pond and the second pond of each combination, entering the sewage of anaerobic pond mixes with the muddy water mixed solution that anoxic pond from this combination enters anaerobic pond, and between the anaerobic pond of this combination and anoxic pond, circulate, the effusive muddy water mixed solution of the anoxic pond of each combination enters the Aerobic Pond of this combination, the Aerobic Pond of each combination flows out the anoxic pond that muddy water mixed solution enters next combination, and the effusive mixed solution of the Aerobic Pond of last combination enters second pond.
The number of the combination that a described back anaerobic pond that is communicated with by an anoxic pond, with this anoxic pond and the Aerobic Pond that links to each other with this anoxic pond are formed is 2~30; Described anoxic pond and anaerobic pond are built jointly or are divided and build; Described anoxic pond and Aerobic Pond are built jointly or are divided and build.
Beneficial effect: the present invention is in conjunction with method for biologically treating wastewater, make full use of limited carbon source, improve the utilization ratio of carbon source in the wastewater treatment, solved the insufficient problem of carbon source in the wastewater biological dephosphorization effectively, improved the sludge concentration of system simultaneously significantly.Sewage directly enters anaerobic pond, and limited carbon source is preferentially supplied with polyP bacteria; Muddy water mixed solution circulates between anaerobic pond and anoxic pond, 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.Sewage effusive muddy water mixed solution in last Aerobic Pond that shunting enters second pond enters second pond, 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.The present invention has and saves aeration rate, needs advantages such as carbon source is less, can solve preferably because of carbon source on the low side, carbon, nitrogen, phosphorus ratio imbalance, and be difficult to realize the municipal sewage treatment problem of highly effective dephosphorizing denitrification.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are further described:
Multistage anaerobism anoxic circulation rear aerobic activated sludge technology of the present invention, mainly carry out anoxic, anaerobic and aerobic biological treatment by anoxic pond, anaerobic pond and Aerobic Pond, again through the second pond precipitation, discharge supernatant liquor in the precipitation, simultaneously part mud is refluxed, anaerobic pond and anoxic pond can be built jointly also can divide and build, and anoxic pond and Aerobic Pond can be built jointly also can divide and build.At first a plurality of anoxic pond, a plurality of Aerobic Pond alternately are communicated with, each anoxic pond all is connected with an anaerobic pond, forms a plurality of combinations of forming by an anoxic pond, with a back anaerobic pond of this anoxic pond connection and the Aerobic Pond that links to each other with this anoxic pond; The number of the combination that a back anaerobic pond that is communicated with by an anoxic pond, with this anoxic pond and the Aerobic Pond that links to each other with this anoxic pond are formed is 2~30.Sewage separation is entered simultaneously the anaerobic pond and the second pond of each combination, entering the sewage of anaerobic pond mixes with the muddy water mixed solution that anoxic pond from this combination enters anaerobic pond, and between the anaerobic pond of this combination and anoxic pond, circulate, the effusive muddy water mixed solution of the anoxic pond of each combination enters the Aerobic Pond of this combination, the Aerobic Pond of each combination flows out the anoxic pond that muddy water mixed solution enters next combination, the effusive mixed solution of the Aerobic Pond of last combination enters second pond, solid-liquid separation in second pond, discharge supernatant liquor, returned sluge enters first anoxic pond, and regularly discharges excess sludge.

Claims (4)

1. a multistage anaerobism anoxic circulation rear aerobic activated sludge technology comprises anoxic, anaerobic and aerobic biological treatment, and precipitates, and discharges supernatant liquor in the precipitation, simultaneously part mud is refluxed, and it is characterized in that process steps is as follows:
A. a plurality of anoxic pond, a plurality of Aerobic Pond alternately are communicated with, each anoxic pond all is connected with an anaerobic pond, forms a plurality of combinations of forming by an anoxic pond, with a back anaerobic pond of this anoxic pond connection and the Aerobic Pond that links to each other with this anoxic pond;
B. sewage separation is entered simultaneously the anaerobic pond and the second pond of each combination, entering the sewage of anaerobic pond mixes with the muddy water mixed solution that anoxic pond from this combination enters anaerobic pond, and between the anaerobic pond of this combination and anoxic pond, circulate, the effusive muddy water mixed solution of the anoxic pond of each combination enters the Aerobic Pond of this combination, the Aerobic Pond of each combination flows out the anoxic pond that muddy water mixed solution enters next combination, and the effusive mixed solution of the Aerobic Pond of last combination enters second pond.
2. multistage anaerobism anoxic circulation rear aerobic activated sludge technology according to claim 1 is characterized in that: the number of the combination that a described back anaerobic pond that is communicated with by an anoxic pond, with this anoxic pond and the Aerobic Pond that links to each other with this anoxic pond are formed is 2~30.
3. multistage anaerobism anoxic circulation rear aerobic activated sludge technology according to claim 1, it is characterized in that: described anoxic pond and anaerobic pond are built jointly or are divided and build.
4. multistage anaerobism anoxic circulation rear aerobic activated sludge technology according to claim 1, it is characterized in that: described anoxic pond and Aerobic Pond are built jointly or are divided and build.
CN 201110132025 2011-05-20 2011-05-20 Multistage anaerobic and anoxic circulating final segment aerobic activated sludge process Pending CN102276062A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201110132025 CN102276062A (en) 2011-05-20 2011-05-20 Multistage anaerobic and anoxic circulating final segment aerobic activated sludge process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201110132025 CN102276062A (en) 2011-05-20 2011-05-20 Multistage anaerobic and anoxic circulating final segment aerobic activated sludge process

Publications (1)

Publication Number Publication Date
CN102276062A true CN102276062A (en) 2011-12-14

Family

ID=45101862

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201110132025 Pending CN102276062A (en) 2011-05-20 2011-05-20 Multistage anaerobic and anoxic circulating final segment aerobic activated sludge process

Country Status (1)

Country Link
CN (1) CN102276062A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103668835A (en) * 2013-12-06 2014-03-26 无锡大阿福信息科技有限公司 System for recycling waste alkaline water in weak alkali pool
CN104478081A (en) * 2014-12-01 2015-04-01 中国矿业大学 Anaerobic-anoxic/aerobic-parallel reinforced dephosphorization and denitrification technique
CN110745948A (en) * 2019-09-27 2020-02-04 中车环境科技有限公司 Sectional water inlet deep dephosphorization and denitrification process

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1772655A (en) * 2005-09-27 2006-05-17 中国矿业大学 High efficiency nitrification process of biological sewage treatment
CN101691268A (en) * 2009-09-17 2010-04-07 上海市政工程设计研究总院 Biochemical reaction tank and denitrification and dephosphorization process thereof
CN101885559A (en) * 2010-06-25 2010-11-17 可事托环保设备(上海)有限公司 Multi-level biological nitrogen and phosphorus removal sewage treatment method and device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1772655A (en) * 2005-09-27 2006-05-17 中国矿业大学 High efficiency nitrification process of biological sewage treatment
CN101691268A (en) * 2009-09-17 2010-04-07 上海市政工程设计研究总院 Biochemical reaction tank and denitrification and dephosphorization process thereof
CN101885559A (en) * 2010-06-25 2010-11-17 可事托环保设备(上海)有限公司 Multi-level biological nitrogen and phosphorus removal sewage treatment method and device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103668835A (en) * 2013-12-06 2014-03-26 无锡大阿福信息科技有限公司 System for recycling waste alkaline water in weak alkali pool
CN104478081A (en) * 2014-12-01 2015-04-01 中国矿业大学 Anaerobic-anoxic/aerobic-parallel reinforced dephosphorization and denitrification technique
CN110745948A (en) * 2019-09-27 2020-02-04 中车环境科技有限公司 Sectional water inlet deep dephosphorization and denitrification process

Similar Documents

Publication Publication Date Title
CN104556572B (en) A kind of method of waste water high-efficiency biochemical denitrification dephosphorization
CN102153236B (en) Rear denitrifying sewage treatment device and process
CN102101746B (en) Low-carbon urban sewage biological phosphorus removal and autotrophic biological nitrogen removal device and method
CN104163551B (en) A kind of MUCT-MBR combination process being applied to sewage disposal
CN106745743B (en) Sewage nitrogen and phosphorus removal system
CN103819049A (en) Sewage treatment method and system
CN104961305A (en) Treatment method of anaerobic fermentation liquid of livestock and poultry breeding wastewater
CN104860482A (en) Advanced nitrogen removal method for treating late landfill leachate with upflow anaerobic sludge blanket, anoxic/oxic and anaerobic ammonia oxidation reactor combined process
CN104163543A (en) Sewage treatment device and sewage treatment method
CN102358663A (en) Low-DO (dissolved oxygen) rear denitrification sewage treatment plant and technique
CN102653423A (en) Membrane bioreactor sewage treatment method and apparatus for enhancing denitrifying dephosphatation through mud-water separation and backflow
CN102786184A (en) Two-stage A / O-MBR denitrification and dephosphorization apparatus
CN101195506A (en) Anaerobic/anoxic parallel type denitrification dephosphorization technique
CN101823814B (en) Method and system of integrated denitrifying phosphorus and nitrogen removal
CN102259981B (en) Sequencing batch biological phosphorus and nitrogen removal process
CN203295318U (en) Integrated denitrifying and dephosphorizing MBR device
CN202346870U (en) Domestic sewage treatment device
CN102276062A (en) Multistage anaerobic and anoxic circulating final segment aerobic activated sludge process
CN104030443B (en) A kind of intensified denitrification and dephosphorization of urban sewage system and treatment process thereof based on fine-grained management
CN201722254U (en) Double sludge denitrifying and dephosphorizing treatment system
CN108996687A (en) A kind of short distance backflow intensifying anoxic/aerobic reactor nitrogen rejection facility and method
CN202729946U (en) Two-stage anoxic/oxic (A/O)-membrane biological reactor (MBR) nitrogen and phosphorus removal device
CN102101747A (en) Three-stage anaerobic two-stage aerobic inner circulation reclaimed water treater
CN102145969B (en) Multi-stage anaerobic and aerobic cocurrent flow tail section oxygen-deficient activated sludge process
CN106219750A (en) A kind of activated sludge biological film denitrification dephosphorization technique

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C12 Rejection of a patent application after its publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20111214