CN107162212A - A kind of alanine waste water treatment process - Google Patents
A kind of alanine waste water treatment process Download PDFInfo
- Publication number
- CN107162212A CN107162212A CN201710412160.0A CN201710412160A CN107162212A CN 107162212 A CN107162212 A CN 107162212A CN 201710412160 A CN201710412160 A CN 201710412160A CN 107162212 A CN107162212 A CN 107162212A
- Authority
- CN
- China
- Prior art keywords
- aeration tank
- aeration
- waste water
- alanine
- water treatment
- 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.)
- Granted
Links
- QNAYBMKLOCPYGJ-REOHCLBHSA-N L-alanine Chemical compound C[C@H](N)C(O)=O QNAYBMKLOCPYGJ-REOHCLBHSA-N 0.000 title claims abstract description 36
- 235000004279 alanine Nutrition 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 20
- 238000005273 aeration Methods 0.000 claims abstract description 96
- 239000010802 sludge Substances 0.000 claims abstract description 26
- 239000001301 oxygen Substances 0.000 claims abstract description 24
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 24
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000002351 wastewater Substances 0.000 claims abstract description 17
- 239000010808 liquid waste Substances 0.000 claims abstract description 9
- 238000000746 purification Methods 0.000 claims abstract description 9
- 239000002699 waste material Substances 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000007599 discharging Methods 0.000 claims description 8
- 238000010992 reflux Methods 0.000 claims description 8
- 241000894006 Bacteria Species 0.000 claims description 4
- 238000005189 flocculation Methods 0.000 claims description 4
- 230000016615 flocculation Effects 0.000 claims description 4
- 239000001963 growth medium Substances 0.000 claims description 2
- DWNBOPVKNPVNQG-LURJTMIESA-N (2s)-4-hydroxy-2-(propylamino)butanoic acid Chemical compound CCCN[C@H](C(O)=O)CCO DWNBOPVKNPVNQG-LURJTMIESA-N 0.000 claims 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 15
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000003851 biochemical process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 description 1
- 229910017912 NH2OH Inorganic materials 0.000 description 1
- JVMRPSJZNHXORP-UHFFFAOYSA-N ON=O.ON=O.ON=O.N Chemical compound ON=O.ON=O.ON=O.N JVMRPSJZNHXORP-UHFFFAOYSA-N 0.000 description 1
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910017464 nitrogen compound Inorganic materials 0.000 description 1
- 150000002830 nitrogen compounds Chemical class 0.000 description 1
- -1 nitrogen-containing compound Chemical class 0.000 description 1
- 125000001477 organic nitrogen group Chemical group 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1278—Provisions for mixing or aeration of the mixed liquor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/22—O2
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a kind of alanine waste water treatment process, alanine waste water is handled by biological denitrificaion method, alanine purification tank for liquid waste is made up of first, second, third, fourth aeration tank for being serially distributed, connecting two-by-two successively, alanine waste strength is controlled in 200 2000mg/L, pH value is controlled 6.5 8, temperature control is at 30 38 DEG C, and sludge concentration is controlled in 2000 5000mg/L；Start the aeration blower, control aeration valve makes dissolved oxygen in purification tank for liquid waste control in 0.1 2.5mg/L, and sludge media uses nitrifier.Alanine waste water treatment efficiency of the present invention is high, and capital expenditure and economic operating cost, operational management are convenient, are widely portable to various high ammonia-nitrogen content waste water, impact resistance is stronger.
Description
Technical field
The present invention relates to chemical engineering sewage processing technology field, especially a kind of alanine waste water treatment process.
Background technology
With global industry develop rapidly and city size continuous expansion, life and production process in emitted
Pollution of the pollutant to water body environment be on the rise, wherein the nitrogen-containing compound of separate sources is important as water body environment
One of pollutant.Substantial amounts of nitrogen compound enters water body environment, causes Water quality to deteriorate, influence fishery, agricultural and cities and towns
Environmental quality, and then influence health.Nitrogen in sewage exists with ammonia nitrogen, organic nitrogen, several forms of nitrite nitrogen.Sewage
Middle ammonia nitrogen is the size of ammonia nitrogen amount in the product of microbial activities, water, is the index for weighing degree of water pollution.
Denitrogenation of waste water method has a variety of, for example blow-off method, neutralisation, break point chlorination, ion-exchange, biochemical process
Deng.Found in practice, many biochemical process carry out denitrogenation, and the clearance of ammonia nitrogen can reach requirement, but be given birth to fermentation method
The waste water for producing alanine generation is high ammonia-nitrogen wastewater, and these methods are strict for the treatment conditions of high ammonia-nitrogen wastewater, complex operation,
Need very big fund input.High ammonia nitrogen alanine waste water how is effectively handled, and does not produce secondary pollution, and money can be realized
The comprehensive utilization in source, is always those skilled in the art's urgent problem to be solved.
The content of the invention
In view of the above-mentioned problems, the present invention provides a kind of alanine waste water treatment process, low, effect is invested in engineer applied
It is good, easy to operate.
A kind of alanine waste water treatment process, is handled alanine waste water by biological denitrificaion method, alanine waste water
Processing pond is made up of first, second, third, fourth aeration tank for being serially distributed, connecting two-by-two successively, and first aeration tank is set
There are water inlet and sludge reflux mouthful, the 4th aeration tank is provided with discharge outlet and mud discharging mouth；Total pipeline is aerated provided with four branches
Pipeline, gos deep into first, second, third, fourth aeration tank bottom respectively, and the aeration total pipeline is connected with aeration air blast
Machine；The control of alanine waste strength is controlled in 6.5-8 in 200-2000mg/L, pH value, and temperature control is at 30-38 DEG C, and sludge is dense
Degree control is in 2000-5000mg/L；Start the aeration blower, control aeration valve controls dissolved oxygen in purification tank for liquid waste
In 0.1-2.5mg/L, wherein first aeration tank dissolved oxygen control is in 0.1-0.5mg/L, second aeration tank dissolved oxygen
Control is in 0.5-1mg/L, and the 3rd aeration tank dissolved oxygen control is in 1-1.7mg/L, the 4th aeration tank dissolved oxygen control
In 1.7-2.5mg/L；Sludge media uses nitrifier.
Further, first, second, third, fourth aeration tank is staggeredly connected up and down, first aeration tank and institute
State connection at the top of the second aeration tank, second aeration tank is connected with the 3rd aeration tank bottom, the 3rd aeration tank and
The 4th aeration tank bottom connection.
Further, the water inlet is arranged at the top of first aeration tank, and the discharge outlet is arranged at the described 4th
At the top of aeration tank.
Further, the purification tank for liquid waste hydraulic detention time is 50-70 hours.
Further, the mud discharging mouth is arranged at the 4th aeration tank bottom, and is arranged sludge flocculation by folded spiral shell machine
Go out.
Further, the sludge reflux mouth is arranged at the top of first aeration tank, concordant with the water inlet, makes exposure
Gas pond sludge concentration is maintained in the range of 2000-5000mg/L, and sludge is nitrification bacterium culture medium.
Beneficial effects of the present invention：Alanine waste water treatment efficiency is high, capital expenditure and economic operating cost, operational management side
Just, various high ammonia-nitrogen content waste water are widely portable to, impact resistance is stronger.
Brief description of the drawings
Fig. 1 is the alanine purification tank for liquid waste structural representation in embodiment 1.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained belongs to what the present invention was protected
Scope.
Embodiment 1
A kind of alanine waste water treatment process, is handled alanine waste water by biological denitrificaion method, alanine wastewater treatment
Pond is made up of first, second, third, fourth aeration tank for being serially distributed, connecting two-by-two successively, and first aeration tank 10 is provided with
Water inlet 101 and sludge reflux mouthful, the 4th aeration tank 40 is provided with discharge outlet 401 and mud discharging mouth 402；Aeration total pipeline 50 is set
There are four laterals, go deep into first, second, third, fourth aeration tank bottom respectively, the aeration total pipeline is connected with
Aeration blower.
First, second, third, fourth aeration tank is staggeredly connected up and down, first aeration tank 10 and described second
The top of aeration tank 20 is connected, and second aeration tank 20 is connected with the bottom of the 3rd aeration tank 30, the 3rd aeration tank 30
Connected with the bottom of the 4th aeration tank 40；Corresponding, the water inlet 101 is concordant with the sludge reflux mouthful to be arranged at institute
The top of the first aeration tank 10 is stated, the discharge outlet 401 is arranged at the top of the 4th aeration tank 40；The mud discharging mouth 402 is set
Sludge flocculation is discharged in the bottom of the 4th aeration tank 40, and by folded spiral shell machine.
32 DEG C of temperature, pH value 7.1, sludge concentration 3300mg/L, ammonia nitrogen concentration is 860mg/L alanine waste water, is started
The aeration blower, control aeration valve makes dissolved oxygen in purification tank for liquid waste control in 0.1-2.5mg/L, wherein described first
The dissolved oxygen control of aeration tank 10 is in 0.2mg/L, and the dissolved oxygen of the second aeration tank 20 control is in 0.8mg/L, the 3rd aeration
The dissolved oxygen control of pond 30 is in 1.5mg/L, and the dissolved oxygen of the 4th aeration tank 40 control is in 2.2mg/L；Sludge media is using nitrification
Bacterium, hydraulic detention time 50 hours.
Under anoxic conditions by the effect of microorganism, using cultured water as electron acceptor, ammonia nitrogen is electron donor, by Asia
Nitrate nitrogen and ammonia nitrogen are converted into N simultaneously2Process.NO first2 -Change into NH2OH, then with H2OH is electron acceptor by NH4 +Oxidation
For hydrazine（N2H4）；N2H4It is converted into N2, and be N02 -It is reduced into H2OH provides electronics.
Oxygen has inhibitory action, and micro-oxygen conditions can be completely inhibited, but the inhibitory action is reversible；It is full more than 18% air
And degree, flora is irrecoverable.Dissolved oxygen scope is optimum in 0.5-2mg/L.
By above-mentioned processing, alanine ammonia nitrogen in waste water drops to 18mg/L by 860mg/L.
Embodiment 2
A kind of alanine waste water treatment process, is handled alanine waste water by biological denitrificaion method, alanine wastewater treatment
Pond is made up of first, second, third, fourth aeration tank for being serially distributed, connecting two-by-two successively, and first aeration tank 10 is provided with
Water inlet 101 and sludge reflux mouthful, the 4th aeration tank 40 is provided with discharge outlet 401 and mud discharging mouth 402；Aeration total pipeline 50 is set
There are four laterals, go deep into first, second, third, fourth aeration tank bottom respectively, the aeration total pipeline is connected with
Aeration blower.
First, second, third, fourth aeration tank is staggeredly connected up and down, first aeration tank 10 and described second
The top of aeration tank 20 is connected, and second aeration tank 20 is connected with the bottom of the 3rd aeration tank 30, the 3rd aeration tank 30
Connected with the bottom of the 4th aeration tank 40；Corresponding, the water inlet 101 is concordant with the sludge reflux mouthful to be arranged at institute
The top of the first aeration tank 10 is stated, the discharge outlet 401 is arranged at the top of the 4th aeration tank 40；The mud discharging mouth 402 is set
Sludge flocculation is discharged in the bottom of the 4th aeration tank 40, and by folded spiral shell machine.
35 DEG C of temperature, pH value 7.1, sludge concentration 3300mg/L, ammonia nitrogen concentration is 1460mg/L alanine waste water, is started
The aeration blower, control aeration valve makes dissolved oxygen in purification tank for liquid waste control in 0.1-2.5mg/L, wherein described first
The dissolved oxygen control of aeration tank 10 is in 0.3mg/L, and the dissolved oxygen of the second aeration tank 20 control is in 0.7mg/L, the 3rd aeration
The dissolved oxygen control of pond 30 is in 1.5mg/L, and the dissolved oxygen of the 4th aeration tank 40 control is in 2.4mg/L；Sludge media is using nitrification
Bacterium, hydraulic detention time 60 hours.
By above-mentioned processing, alanine ammonia nitrogen in waste water drops to 34mg/L by 1460mg/L.
Finally, in addition it is also necessary to it is noted that listed above is only a specific embodiment of the invention.Obviously, the present invention is not limited
In above example, there can also be many deformations.One of ordinary skill in the art can directly lead from present disclosure
All deformations for going out or associating, are considered as protection scope of the present invention.
Claims (7)
1. a kind of alanine waste water treatment process, is handled alanine waste water, it is characterised in that third by biological denitrificaion method
Propylhomoserin purification tank for liquid waste is made up of first, second, third, fourth aeration tank for being serially distributed, connecting two-by-two successively, and described first
Aeration tank is provided with discharge outlet and mud discharging mouth provided with water inlet and sludge reflux mouthful, the 4th aeration tank；Aeration total pipeline is provided with
Four laterals, go deep into first, second, third, fourth aeration tank bottom respectively, and the aeration total pipeline is connected with exposure
Enraged blower fan；
The control of alanine waste strength is controlled in 6.5-8 in 200-2000mg/L, pH value, and temperature control is at 30-38 DEG C, and sludge is dense
Degree control is in 2000-5000mg/L；Start the aeration blower, control aeration valve controls dissolved oxygen in purification tank for liquid waste
In 0.1-2.5mg/L, wherein first aeration tank dissolved oxygen control is in 0.1-0.5mg/L, second aeration tank dissolved oxygen
Control is in 0.5-1mg/L, and the 3rd aeration tank dissolved oxygen control is in 1-1.7mg/L, the 4th aeration tank dissolved oxygen control
In 1.7-2.5mg/L；Sludge media uses nitrifier.
2. alanine waste water treatment process according to claim 1, it is characterised in that described first, second, third,
Four aeration tanks are staggeredly connected up and down.
3. alanine waste water treatment process according to claim 2, it is characterised in that first aeration tank and described the
Connect at the top of two aeration tanks, second aeration tank is connected with the 3rd aeration tank bottom, the 3rd aeration tank with it is described
4th aeration tank bottom is connected.
4. alanine waste water treatment process according to claim 3, it is characterised in that the water inlet is arranged at described
At the top of one aeration tank, the discharge outlet is arranged at the top of the 4th aeration tank.
5. the alanine waste water treatment process according to claim 1-4 any one, it is characterised in that the wastewater treatment
The tank waterpower residence time is 50-70 hours.
6. alanine waste water treatment process according to claim 5, it is characterised in that the mud discharging mouth is arranged at described
Four aeration tanks bottom, and discharged sludge flocculation by folded spiral shell machine.
7. alanine waste water treatment process according to claim 6, it is characterised in that the sludge reflux mouthful is arranged at institute
State at the top of the first aeration tank, it is concordant with the water inlet, aeration tank sludge concentration is maintained in the range of 2000-5000mg/L,
Sludge is nitrification bacterium culture medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710412160.0A CN107162212B (en) | 2017-06-03 | 2017-06-03 | Alanine wastewater treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710412160.0A CN107162212B (en) | 2017-06-03 | 2017-06-03 | Alanine wastewater treatment process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107162212A true CN107162212A (en) | 2017-09-15 |
| CN107162212B CN107162212B (en) | 2020-11-10 |
Family
ID=59825348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710412160.0A Active CN107162212B (en) | 2017-06-03 | 2017-06-03 | Alanine wastewater treatment process |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1990393A (en) * | 2005-12-26 | 2007-07-04 | 北京城市排水集团有限责任公司 | Five-factor wastewater treating apparatus |
| CN101195507A (en) * | 2007-12-13 | 2008-06-11 | 吴江市方霞企业信息咨询有限公司 | High ammonia nitrogen wastewater treatment |
| CN201330216Y (en) * | 2009-01-15 | 2009-10-21 | 彭永臻 | Apparatus for implementing sludge micro-swelling energy-saving method in biological denitrification technique |
| CN202148221U (en) * | 2011-07-26 | 2012-02-22 | 成都市龙沣源环保科技有限责任公司 | An integrated A-O biological denitrification reactor with a buffer zone |
| KR20130001066A (en) * | 2011-06-24 | 2013-01-03 | 주식회사 우일환경테크닉스 | Advanced wastewater treatment for biologically removing nitrogen and phosphorus using membrane atteched biofilms |
| CN103880251A (en) * | 2014-03-27 | 2014-06-25 | 北京工业大学 | A2/O-biological contact oxidation device and method for short-range nitrification coupling denitrification phosphorus removal |
| US20160311713A1 (en) * | 2012-10-01 | 2016-10-27 | D.C. Water & Sewer Authority | Method and apparatus for maximizing nitrogen removal in wastewater |
-
2017
- 2017-06-03 CN CN201710412160.0A patent/CN107162212B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1990393A (en) * | 2005-12-26 | 2007-07-04 | 北京城市排水集团有限责任公司 | Five-factor wastewater treating apparatus |
| CN101195507A (en) * | 2007-12-13 | 2008-06-11 | 吴江市方霞企业信息咨询有限公司 | High ammonia nitrogen wastewater treatment |
| CN201330216Y (en) * | 2009-01-15 | 2009-10-21 | 彭永臻 | Apparatus for implementing sludge micro-swelling energy-saving method in biological denitrification technique |
| KR20130001066A (en) * | 2011-06-24 | 2013-01-03 | 주식회사 우일환경테크닉스 | Advanced wastewater treatment for biologically removing nitrogen and phosphorus using membrane atteched biofilms |
| CN202148221U (en) * | 2011-07-26 | 2012-02-22 | 成都市龙沣源环保科技有限责任公司 | An integrated A-O biological denitrification reactor with a buffer zone |
| US20160311713A1 (en) * | 2012-10-01 | 2016-10-27 | D.C. Water & Sewer Authority | Method and apparatus for maximizing nitrogen removal in wastewater |
| CN103880251A (en) * | 2014-03-27 | 2014-06-25 | 北京工业大学 | A2/O-biological contact oxidation device and method for short-range nitrification coupling denitrification phosphorus removal |
Non-Patent Citations (1)
| Title |
|---|
| 高艳玲: "《城市污水处理技术及工艺运行管理》", 31 July 2012 * |
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| CN107162212B (en) | 2020-11-10 |
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