CN103663679B - Pure oxygen aeration is utilized to carry out the method for low-carbon high-nitrogen sewage nitration reaction - Google Patents

Pure oxygen aeration is utilized to carry out the method for low-carbon high-nitrogen sewage nitration reaction Download PDF

Info

Publication number
CN103663679B
CN103663679B CN201210348596.5A CN201210348596A CN103663679B CN 103663679 B CN103663679 B CN 103663679B CN 201210348596 A CN201210348596 A CN 201210348596A CN 103663679 B CN103663679 B CN 103663679B
Authority
CN
China
Prior art keywords
aeration
aeration tank
tank
carbon
low
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.)
Active
Application number
CN201210348596.5A
Other languages
Chinese (zh)
Other versions
CN103663679A (en
Inventor
王卫华
高庆然
欧焕晖
刘福利
郝格格
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 Petroleum and Chemical Corp
Original Assignee
China Petroleum and Chemical Corp
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 Petroleum and Chemical Corp filed Critical China Petroleum and Chemical Corp
Priority to CN201210348596.5A priority Critical patent/CN103663679B/en
Publication of CN103663679A publication Critical patent/CN103663679A/en
Application granted granted Critical
Publication of CN103663679B publication Critical patent/CN103663679B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Abstract

Utilize pure oxygen aeration to carry out the method for low-carbon high-nitrogen sewage nitration reaction, belong to sewage disposal device and technical field.Comprise aeration tank (1) and settling tank (2), it is characterized in that: in described aeration tank (1), be provided with multiple partition wall (3) side by side, aeration tank (1) is divided into multiple solarization air cell, aerator (4) is all installed in each solarization air cell, aeration tank (1) one end has water-in, the other end has water outlet and is communicated with the water inlet of settling tank (2), and settling tank (2) has water outlet and refluxing opening, and the refluxing opening of settling tank (2) is communicated with aeration tank (1).This utilizes pure oxygen aeration to carry out the device of low-carbon high-nitrogen sewage nitration reaction without the need to adding carbon source, high, the effective removal ammonia nitrogen of oxygen utilization rate and organism, and reduces job costs, is suitable for generally applying.

Description

Pure oxygen aeration is utilized to carry out the method for low-carbon high-nitrogen sewage nitration reaction
Technical field
Utilize pure oxygen aeration to carry out the method for low-carbon high-nitrogen sewage nitration reaction, belong to sewage disposal device and technical field, be specifically related to a kind of device and method of low-carbon high-nitrogen sewage nitration reaction.
Background technology
Low-carbon high-nitrogen sewage is mainly derived from coked waste water, percolate, chemical fertilizer sewage, aquaculture wastewater anaerobic nitrification liquid etc.Supply and discharge water factory low-carbon high-nitrogen sewage derives from chemical engineering sewage.This sewage quantity is about 100m 3/ h, COD crfor 90-160 mg/L, average out to 108mg/L, ammonia nitrogen between 90-360mg/L, average out to 118mg/L.Ammonia-state nitrogen is changed into nitrite nitrogen by the nitrifying process of current biological denitrificaion mainly Nitrosomas, and nitrite nitrogen is converted into nitrate nitrogen by Nitromonas.Nitrosomas and Nitromonas are referred to as nitrobacteria, and nitrobacteria is very responsive to environmental change, and required condition is aerobic condition, and need keep certain basicity; Organic carbon concentration can not be too high.For low-carbon high-nitrogen sewage, the ammonia nitrogen of high density and nitrite suppress the growth of nitrifier, and sewage carbon source is not enough, affects the foundation of nitration reaction.Thus, low-carbon high-nitrogen sewage process needs additional carbon, increases cost of sewage disposal.
At present, the research of pure oxygen aeration Wastewater Treated by Activated Sludge Process low-carbon high-nitrogen sewage is adopted mainly to concentrate on the process of city low-carbon high-nitrogen sanitary sewage, the method without the need to adding carbon source, oxygen utilization rate is high, reach and remove ammonia nitrogen and organism object, become so how to utilize pure oxygen aeration process low-carbon high-nitrogen sewage and be applied to industry the problem that scientific research personnel is badly in need of solution.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiencies in the prior art, provides a kind of without the need to adding carbon source, high, the effective removal ammonia nitrogen of oxygen utilization rate and the organic device and method utilizing pure oxygen aeration to carry out low-carbon high-nitrogen sewage nitration reaction.
The technical solution adopted for the present invention to solve the technical problems is: this utilizes pure oxygen aeration to carry out the device of low-carbon high-nitrogen sewage nitration reaction, comprise aeration tank and settling tank, it is characterized in that: in described aeration tank, be provided with multiple partition wall side by side, aeration tank is divided into multiple solarization air cell, all aerator is installed in each solarization air cell, one end, aeration tank has water-in, the other end has water outlet and is communicated with the water inlet of settling tank, settling tank has water outlet and refluxing opening, and the refluxing opening of settling tank is communicated with aeration tank.Aerator carries out oxygenic aeration in aeration tank makes oxygen fully mix with sewage, under the effect of microorganism, and degradation of sewage pollutent, muddy water mixed solution after process enters settling tank, and after mud-water separation, most of sludge reflux is to aeration tank, small part excess sludge is arranged outward, and supernatant liquor discharges.
Preferably, described partition wall establishes three sections altogether, aeration tank is divided into four solarization air cell, and the height of partition wall is identical with aeration tank exterior wall height, and all having below every section of partition wall can for the water valve of sewage flow.
Preferably, have cross flow deflector below described aerator, flow deflector is connected with pond body bottom aeration tank.Cross flow deflector can make oxygen fully mix with sewage.
Preferably, described aerator selects surface aeration machine, and aerator is arranged on above aeration tank, and one end is sunk in aeration tank, and the other end is outside in aeration tank.
In described aeration tank, a wall is built in the side of water outlet, wall be parallel to partition wall and height lower than partition wall, wall and water outlet side, aeration tank exterior wall form an effluent trough, and the muddy water mixed solution after process can flow in effluent trough from wall superjacent air space and enter settling tank.
Utilize pure oxygen aeration to set up the method for low-carbon high-nitrogen sewage nitration reaction, it is characterized in that, comprise the following steps:
1, the pure oxygen aeration that utilizes set up as described in any one of claim 1 ~ 5 carries out the device of low-carbon high-nitrogen sewage nitration reaction, and imports nitrifying sludge in aeration tank, adds nutrition agent, carries out nitrifying sludge domestication, set up nitration reaction;
2, low-carbon high-nitrogen sewage and backflow mixed liquor enter aeration tank, aerator work, carry out aeration, low-carbon high-nitrogen sewage, oxygen and backflow mixed liquor are mixed into aeration tank first paragraph solarization air cell, and flow through each section successively by water valve, and under the effect of microorganism, degradation of sewage pollutent;
3, the muddy water mixed solution after process enters settling tank, and after mud-water separation, most of sludge reflux is to aeration tank, and small part excess sludge is arranged outward, and supernatant liquor discharges, with this cycle operation; During operation, DO is 12mg/L, MLSS is 16mg/L, SV 30for 96mL, SVI are 43mL/g, sludge reflux 100%, HRT is greater than 12h.
COD craverage removal rate is 45.7%.
The method utilizes pure oxygen aeration technique to set up the nitration reaction of low-carbon high-nitrogen sewage, and without the need to adding carbon source, oxygen utilization rate is high, reaches and removes ammonia nitrogen and organism object.
Compared with prior art, the beneficial effect that the present invention has is:
1, this utilizes pure oxygen aeration to carry out the device manufacture of low-carbon high-nitrogen sewage nitration reaction simply, and cost is low, is applicable to popularity application;
2, utilizing pure oxygen aeration to set up the method for low-carbon high-nitrogen sewage nitration reaction, without the need to adding carbon source, reduce cost of sewage disposal, and oxygen utilization rate is high, reach and remove ammonia nitrogen and organism object, wherein water outlet ammonia nitrogen is below detection limit, COD craverage removal rate is 45.7%, and the method is to ammonia nitrogen removal Be very effective.
Accompanying drawing explanation
Fig. 1 is present invention process schematic flow sheet.
Fig. 2 is Aeration tank structure schematic diagram of the present invention.
Fig. 3 is Inlet and outlet water COD crchanging trend diagram.
Fig. 4 is Inlet and outlet water ammonia nitrogen changing trend diagram.
Wherein: 1, aeration tank 2, settling tank 3, partition wall 4, aerator 5, flow deflector 6, wall 7, effluent trough 8, water valve.
Embodiment
Fig. 1 ~ 4 are most preferred embodiments of the present invention, and below in conjunction with accompanying drawing 1 ~ 4, the present invention will be further described.
With reference to accompanying drawing 2: this utilizes pure oxygen aeration to carry out the device of low-carbon high-nitrogen sewage nitration reaction, comprise aeration tank 1 and settling tank 2, multiple partition wall 3 is side by side provided with in aeration tank 1, aeration tank 1 is divided into multiple solarization air cell, partition wall 3 establishes three sections altogether, aeration tank 1 is divided into four solarization air cell, in each solarization air cell, aerator 4 is all installed.The height of partition wall 3 is identical with aeration tank 1 exterior wall height, all having below every section of partition wall 3 can for the water valve 8 of sewage flow, in aeration tank 1, a wall 6 is built in the side of water outlet, wall 6 be parallel to partition wall 3 and height lower than partition wall 3, wall 6 and water outlet side, aeration tank 1 exterior wall form an effluent trough 7, and the muddy water mixed solution after process can flow in effluent trough 7 from wall 6 superjacent air space and enter settling tank 2.
One end, aeration tank 1 has water-in, and the other end has water outlet and is communicated with the water inlet of settling tank 2, and settling tank 2 has water outlet and refluxing opening, and the refluxing opening of settling tank 2 is communicated with aeration tank 1.
Aerator 4 selects surface aeration machine, and aerator 4 is arranged on above aeration tank 1, and one end is sunk in aeration tank 1, and the other end is outside in aeration tank 1.Have cross flow deflector 5 below aerator 4, flow deflector 5 is connected with pond body bottom aeration tank 1, and cross flow deflector 5 can make oxygen fully mix with sewage.Aerator 4 carries out oxygenic aeration in aeration tank 1 makes oxygen fully mix with sewage, under the effect of microorganism, degradation of sewage pollutent, muddy water mixed solution after process enters settling tank 2, after mud-water separation, major part sludge reflux is to aeration tank 1, and small part excess sludge is arranged outward, and supernatant liquor discharges.
With reference to accompanying drawing 1 ~ 2: utilize pure oxygen aeration to set up the method for low-carbon high-nitrogen sewage nitration reaction, comprise the following steps:
1, foundation utilizes pure oxygen aeration to carry out the device of low-carbon high-nitrogen sewage nitration reaction, and imports nitrifying sludge in aeration tank 1, adds nutrition agent, carries out nitrifying sludge domestication, set up nitration reaction;
2, low-carbon high-nitrogen sewage and backflow mixed liquor enter aeration tank 1, and aerator 4 works, and carry out aeration, low-carbon high-nitrogen sewage, oxygen and backflow mixed liquor are mixed into aeration tank 1 first paragraph solarization air cell, and flow through each section successively by water valve 8, and under the effect of microorganism, degradation of sewage pollutent;
3, the muddy water mixed solution after process enters settling tank 2, and after mud-water separation, most of sludge reflux is to aeration tank 1, and small part excess sludge is arranged outward, and supernatant liquor discharges, with this cycle operation; During operation, DO is 12mg/L, MLSS is 16mg/L, SV 30for 96mL, SVI are 43mL/g, sludge reflux 100%, HRT is greater than 12h, COD craverage removal rate is 45.7%.
With reference to accompanying drawing 3: when the method utilizing pure oxygen aeration to set up low-carbon high-nitrogen sewage nitration reaction carries out the sewage disposal of low-carbon high-nitrogen, influent COD crbetween 112-196mg/L, average out to 140mg/L, water outlet COD crbetween 60.2-89.3mg/L, average out to 74.4mg/L, COD crclearance 30.4-64.6%, average out to 45.7%, shows that this utilizes pure oxygen aeration to set up the method for low-carbon high-nitrogen sewage nitration reaction to COD crthere is removal effect.
With reference to accompanying drawing 4: when the method utilizing pure oxygen aeration to set up low-carbon high-nitrogen sewage nitration reaction carries out the sewage disposal of low-carbon high-nitrogen, influent ammonia nitrogen is between 137-234mg/L, average out to 188mg/L, water outlet ammonia nitrogen is below detectability, ammonia nitrogen removal frank, close to 100%, shows that this utilizes pure oxygen aeration to set up the method for low-carbon high-nitrogen sewage nitration reaction to ammonia nitrogen removal Be very effective.The method utilizes pure oxygen aeration technique to set up the nitration reaction of low-carbon high-nitrogen sewage, and without the need to adding carbon source, oxygen utilization rate is high, reach and remove ammonia nitrogen and organism object, and cost is low, is suitable for popularity.
The above is only preferred embodiment of the present invention, and be not restriction the present invention being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.But everyly do not depart from technical solution of the present invention content, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.

Claims (2)

1. utilize pure oxygen aeration to set up the method for low-carbon high-nitrogen sewage nitration reaction, it is characterized in that, comprise the following steps:
1.1. setting up utilizes pure oxygen aeration to carry out the device of low-carbon high-nitrogen sewage nitration reaction, comprise aeration tank (1) and settling tank (2), three sections of partition walls (3) are side by side provided with in described aeration tank (1), aeration tank (1) is divided into four solarization air cell, aerator (4) is all installed in each solarization air cell, aeration tank (1) one end has water-in, the other end has water outlet and is communicated with the water inlet of settling tank (2), settling tank (2) has water outlet and refluxing opening, and the refluxing opening of settling tank (2) is communicated with aeration tank (1); The height of partition wall (3) is identical with aeration tank (1) exterior wall height, and every section of partition wall (3) below all has the water valve (8) that can supply sewage flow; Described aerator (4) below has cross flow deflector (5), and flow deflector (5) is connected with pond, aeration tank (1) bottom body; Described aerator (4) selects surface aeration machine, and aerator (4) is arranged on top, aeration tank (1), and one end is sunk in aeration tank (1), and the other end is outside in aeration tank (1); In described aeration tank (1), a wall (6) is built in the side of water outlet, and wall (6) is parallel to partition wall (3) and highly lower than partition wall (3), wall (6) and aeration tank (1) water outlet side exterior wall form an effluent trough (7); And nitrifying sludge is imported in aeration tank (1), add nutrition agent, carry out nitrifying sludge domestication, set up nitration reaction;
1.2. low-carbon high-nitrogen sewage and backflow mixed liquor enter aeration tank (1), aerator (4) works, carry out aeration, low-carbon high-nitrogen sewage, oxygen and backflow mixed liquor are mixed into aeration tank (1) first paragraph solarization air cell, and flow through each section successively by water valve (8), under the effect of microorganism, degradation of sewage pollutent;
1.3. the muddy water mixed solution after process enters settling tank (2), and after mud-water separation, most of sludge reflux is to aeration tank (1), and small part excess sludge is arranged outward, and supernatant liquor discharges, with this cycle operation; During operation, DO is 12mg/L, MLSS is 16mg/L, SV 30for 96mL, SVI are 43mL/g, sludge reflux 100%, HRT is greater than 12h.
2. the method utilizing pure oxygen aeration to set up low-carbon high-nitrogen sewage nitration reaction according to claim 1, is characterized in that: COD craverage removal rate is 45.7%.
CN201210348596.5A 2012-09-19 2012-09-19 Pure oxygen aeration is utilized to carry out the method for low-carbon high-nitrogen sewage nitration reaction Active CN103663679B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210348596.5A CN103663679B (en) 2012-09-19 2012-09-19 Pure oxygen aeration is utilized to carry out the method for low-carbon high-nitrogen sewage nitration reaction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210348596.5A CN103663679B (en) 2012-09-19 2012-09-19 Pure oxygen aeration is utilized to carry out the method for low-carbon high-nitrogen sewage nitration reaction

Publications (2)

Publication Number Publication Date
CN103663679A CN103663679A (en) 2014-03-26
CN103663679B true CN103663679B (en) 2015-08-19

Family

ID=50302585

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210348596.5A Active CN103663679B (en) 2012-09-19 2012-09-19 Pure oxygen aeration is utilized to carry out the method for low-carbon high-nitrogen sewage nitration reaction

Country Status (1)

Country Link
CN (1) CN103663679B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106542632A (en) * 2016-10-28 2017-03-29 广州中国科学院沈阳自动化研究所分所 A kind of method for starting nitration reaction under micro-oxygen conditions

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3960717A (en) * 1972-01-20 1976-06-01 Air Products And Chemicals, Inc. Process for treating waste water
JPS6022994A (en) * 1983-07-19 1985-02-05 Kubota Ltd Process for aerating activated sludge with pure oxygen
US4898672A (en) * 1987-09-14 1990-02-06 Clifft Ricky C Oxygen controlling wastewater treatment method
CN2117376U (en) * 1992-02-24 1992-09-30 济南市水处理技术实验所 Closed pure oxidgen aerator
KR0165168B1 (en) * 1996-05-29 1999-01-15 안덕기 Waste water treating equipment and method using pure oxygen activated sludge process having anaerobic sludge treating section
CN101395091A (en) * 2006-02-02 2009-03-25 李载宪 Pure oxygen aeration system for wastewater treatment
CN102531174A (en) * 2012-03-02 2012-07-04 北京工业大学 Treatment device and method for reducing amount of sludge of improved sewage factory and performing low-carbon-consumption denitrification
CN202379803U (en) * 2011-12-29 2012-08-15 上海世渊环保科技有限公司 Staggered flow type aeration, sediment and filter device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3960717A (en) * 1972-01-20 1976-06-01 Air Products And Chemicals, Inc. Process for treating waste water
JPS6022994A (en) * 1983-07-19 1985-02-05 Kubota Ltd Process for aerating activated sludge with pure oxygen
US4898672A (en) * 1987-09-14 1990-02-06 Clifft Ricky C Oxygen controlling wastewater treatment method
CN2117376U (en) * 1992-02-24 1992-09-30 济南市水处理技术实验所 Closed pure oxidgen aerator
KR0165168B1 (en) * 1996-05-29 1999-01-15 안덕기 Waste water treating equipment and method using pure oxygen activated sludge process having anaerobic sludge treating section
CN101395091A (en) * 2006-02-02 2009-03-25 李载宪 Pure oxygen aeration system for wastewater treatment
CN202379803U (en) * 2011-12-29 2012-08-15 上海世渊环保科技有限公司 Staggered flow type aeration, sediment and filter device
CN102531174A (en) * 2012-03-02 2012-07-04 北京工业大学 Treatment device and method for reducing amount of sludge of improved sewage factory and performing low-carbon-consumption denitrification

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106542632A (en) * 2016-10-28 2017-03-29 广州中国科学院沈阳自动化研究所分所 A kind of method for starting nitration reaction under micro-oxygen conditions

Also Published As

Publication number Publication date
CN103663679A (en) 2014-03-26

Similar Documents

Publication Publication Date Title
CN103663696B (en) A kind of membrane bioreactor for the treatment of the denitrogenation of preserved szechuan pickle waste water enhanced biological phosphorus removal
CN105217786B (en) Based on DEAMOX reinforcing improvement subsection water inflow As2The apparatus and method of/O technique biological carbon and phosphorous removals
CN105384247B (en) It is a kind of that the method that part denitrification couples Anammox denitrogenation is realized by A/O biomembrane process
CN105217890A (en) A is strengthened based on DEAMOX 2the apparatus and method of/O+ Biological Contact Oxidation Process biological carbon and phosphorous removal
CN1331780C (en) Integrative bioreactor for treating refuse leachate
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
CN104045156A (en) Integrated efficient autotrophic nitrogen removal reactor
CN103508561B (en) Segmented oxygen supply self-circulation denitrification reactor
CN102153232B (en) Side-flow circulation BAF (Biological Aerated Filter) intensified dephosphorization system and method for treating urban sewage with the dephosphorization system
CN204265526U (en) The device of a kind of anaerobism-micro-oxygen-aerobic treatment municipal effluent
CN103449684B (en) High-toxicity coking phenol-cyanogen waste water recycling system and method
CN101863592B (en) Leachate treatment method for small town household refuse landfill sites
CN204779235U (en) Device of landfill leachate degree of depth denitrogenation in later period
CN105271606B (en) A kind of processing method of coking chemical waste water
CN103663679B (en) Pure oxygen aeration is utilized to carry out the method for low-carbon high-nitrogen sewage nitration reaction
CN204999682U (en) Synchronous carbon denitrogenation reactor that removes
CN203999133U (en) A kind of integrated high-efficiency self-supported denitrification reactor
CN103112999A (en) Regeneration method for urban sewage by continuous flow
CN107963782B (en) Biological contact oxidation reaction system with enhanced denitrification function
CN105060465A (en) Synchronous carbon and nitrogen removing reactor
CN201793462U (en) Trimethylolpropane industrial waste water treatment system
CN201614333U (en) Decentralized sewage treatment device
CN203411393U (en) Multi-point water inflow composite-filler double-sludge denitrogenation sewage disposal device
CN209906446U (en) Integrated sewage advanced treatment device based on circular tank body
CN210683344U (en) Sewage treatment system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
C14 Grant of patent or utility model