CN111204862A - Biochemical treatment device for treating high organic nitrogen wastewater - Google Patents
Biochemical treatment device for treating high organic nitrogen wastewater Download PDFInfo
- Publication number
- CN111204862A CN111204862A CN202010038599.3A CN202010038599A CN111204862A CN 111204862 A CN111204862 A CN 111204862A CN 202010038599 A CN202010038599 A CN 202010038599A CN 111204862 A CN111204862 A CN 111204862A
- Authority
- CN
- China
- Prior art keywords
- anoxic
- aerobic
- liquid
- organic nitrogen
- 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
Links
Images
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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
- C02F3/305—Nitrification and denitrification treatment characterised by the denitrification
-
- 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
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/043—Treatment of partial or bypass streams
-
- 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
Abstract
The invention discloses a biochemical treatment device for treating high organic nitrogen wastewater, which comprises: the device comprises an anaerobic system, a first anoxic system, a first aerobic system, a second anoxic system, a second aerobic system, a sedimentation tank and a nitrified liquid backflow system, wherein part of nitrified liquid in the second aerobic system flows back to the anaerobic system, and part of nitrified liquid flows back to the first aerobic system; the sludge backflow system is used for returning a part of sludge in the sedimentation tank to the first anoxic system; the wastewater to be treated sequentially flows through the anaerobic system, the first anoxic system, the first aerobic system, the second anoxic system, the second aerobic system and the sedimentation tank. The Anaerobic Baffled Reactor (ABR) and the traditional two-stage A/O process are organically combined to construct a novel coupling linkage combined process, and a carbon source is added as little as possible to realize decarbonization and denitrification.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a biochemical treatment device for treating high organic nitrogen wastewater.
Background
The method for treating the high-concentration organic nitrogen wastewater comprises the following steps: the physical and chemical methods such as a stripping method, electrochemical oxidation, physical and chemical precipitation and the like and a biochemical process are used for treatment, the physical and chemical methods have the problems of high treatment cost, easy secondary pollution, difficult standard reaching of effluent and the like, and the biochemical process has the advantages of low treatment cost, capability of reaching the standard at one time and the like in comparison with the physical and chemical methods for treating high-concentration organic nitrogen wastewater, but the problems of poor anaerobic efficiency, large carbon source adding amount and the like in various processes.
Disclosure of Invention
The invention aims to provide a biochemical treatment device for treating high organic nitrogen wastewater, and the dosage of a carbon source is reduced.
In order to solve the above technical problems, the present invention provides a biochemical treatment apparatus for treating high organic nitrogen wastewater, comprising:
the anaerobic system is used for carrying out microbial bio-separation treatment on liquid in the anaerobic system;
the first anoxic system is positioned at the downstream of the anaerobic system and is used for performing denitrification treatment on liquid in the first anoxic system;
the first aerobic system is positioned at the downstream of the first anoxic system and is used for carrying out nitration treatment on liquid in the first anoxic system;
the second anoxic system is positioned at the downstream of the first aerobic system and is used for performing denitrification treatment on liquid in the second anoxic system;
the second aerobic system is positioned at the downstream of the second anoxic system and is used for nitrifying the liquid in the second anoxic system;
the sedimentation tank is positioned at the downstream of the second aerobic system and is used for carrying out sedimentation treatment on liquid in the sedimentation tank;
the nitrifying liquid reflux system is used for partially refluxing the nitrifying liquid in the second aerobic system to the anaerobic system and partially refluxing the nitrifying liquid in the first aerobic system;
the sludge backflow system is used for returning a part of sludge in the sedimentation tank to the first anoxic system;
the wastewater to be treated sequentially flows through the anaerobic system, the first anoxic system, the first aerobic system, the second anoxic system, the second aerobic system and the sedimentation tank.
Further, still include: and the at least two stirring systems are respectively arranged in the first anoxic system and the second anoxic system and are used for stirring the liquid in the first anoxic system and the second anoxic system.
Further, still include: and the at least two aeration systems are respectively arranged in the first aerobic system and the second aerobic system and are used for increasing the oxygen content of the liquid in the first aerobic system and the second aerobic system.
Further, in the second aerobic system, the reflux ratio of the nitrifying liquid is 100-200%.
Further, in the sedimentation tank, the reflux ratio of the sludge is 50-150%.
Further, in the sedimentation tank, the reflux ratio of the sludge is 100%.
Furthermore, in the first aerobic system and the second aerobic system, the DO value is 2 mg/L-4 mg/L, and the sludge concentration is 3200 mg/L-3800 mg/L.
Furthermore, in the first aerobic system and the second aerobic system, the DO value is 3mg/L, and the sludge concentration is 3500 mg/L.
Furthermore, the concentration of the sludge in the anaerobic system is 20000mg/L-30000 mg/L.
Further, in the anaerobic system, the sludge concentration is 25000 mg/L.
Has the advantages that:
the invention organically combines an Anaerobic Baffled Reactor (ABR) and a traditional two-stage A/O process, constructs a novel coupling linkage combination process, combines the microbial biological separation of the Anaerobic Baffled Reactor (ABR), strengthens the ABR to provide a sufficient high-quality carbon source for denitrification, realizes the circulating linkage of the ABR and the two-stage A/O process by additionally arranging nitrification liquid reflux and sludge reflux, and then adds as little external carbon source as possible to realize the decarbonization and denitrification.
Drawings
FIG. 1 is a schematic structural diagram of a biochemical treatment apparatus for treating high organic nitrogen wastewater according to the present invention.
In the figure, 1, a water inlet pipe, 2, an anaerobic system, 3, a first anoxic system, 4, a first aerobic system, 5, a sedimentation tank, 6, a stirring system, 7, an aeration system, 8, a nitrifying liquid reflux system, 9, a sludge reflux system, 10, a second anoxic system and 11, a second aerobic system are arranged.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
A biochemical treatment device for treating wastewater with high organic nitrogen content, as shown in figure 1, comprises:
an anaerobic system 2, typically an Anaerobic Baffled Reactor (ABR), for subjecting the liquid inside to a microbial bio-separation process;
the first anoxic system 3 is positioned at the downstream of the anaerobic system 2 and is used for performing denitrification treatment on liquid in the first anoxic system;
the first aerobic system 4 is positioned at the downstream of the first anoxic system 3 and is used for carrying out nitration treatment on the liquid in the first anoxic system;
the second anoxic system 10 is positioned at the downstream of the first aerobic system 4 and is used for performing denitrification treatment on liquid in the second anoxic system;
a second aerobic system 11, which is positioned at the downstream of the second anoxic system 10 and is used for nitrifying the liquid in the second anoxic system;
the sedimentation tank 5 is positioned at the downstream of the second aerobic system 11 and is used for carrying out sedimentation treatment on liquid in the sedimentation tank;
the nitrifying liquid reflux system 8 is used for partially refluxing the nitrifying liquid in the second aerobic system 11 to the anaerobic system 2 and partially refluxing the nitrifying liquid to the first aerobic system 4;
and a sludge return system 9 for returning a part of the sludge in the sedimentation tank 5 to the first anoxic system 3;
wastewater to be treated sequentially flows through the anaerobic system 2, the first anoxic system 3, the first aerobic system 4, the second anoxic system 10, the second aerobic system 11 and the sedimentation tank 5.
In the embodiment, an Anaerobic Baffled Reactor (ABR) and a traditional two-stage A/O process are organically combined to construct a novel coupling linkage combined process, microbial biological separation of the Anaerobic Baffled Reactor (ABR) is combined, the ABR is strengthened to provide an adequate high-quality carbon source for denitrification, the circulation linkage of the ABR and the two-stage A/O process is realized by additionally arranging nitrification liquid reflux and sludge reflux, and the decarbonization and denitrification are realized by adding as few external carbon sources as possible.
In an optional implementation manner of this embodiment, the method further includes: and the at least two stirring systems 6 are respectively arranged in the first anoxic system 3 and the second anoxic system 10 and are used for stirring the liquid in the first anoxic system 3 and the second anoxic system 10.
In an optional implementation manner of this embodiment, the method further includes: at least two aeration systems 7, respectively arranged in the first aerobic system 4 and the second aerobic system 11, are used for increasing the oxygen content of the liquid in the first aerobic system 4 and the second aerobic system 11.
In an optional implementation manner of this embodiment, in the second aerobic system 11, the reflux ratio of the nitrified liquid is 100% to 200%.
In an optional embodiment of this embodiment, in the sedimentation tank 5, the reflux ratio of the sludge is 50% to 150%, and preferably, the reflux ratio of the sludge is 100%.
In an alternative embodiment of this embodiment, the DO (dissolved oxygen) value in the first aerobic system 4 and the second aerobic system 11 is 2mg/L to 4mg/L, the sludge concentration is 3200mg/L to 3800mg/L, and preferably, the DO value is 3mg/L, and the sludge concentration is 3500 mg/L.
In an alternative embodiment of this embodiment, the concentration of the sludge in the anaerobic system 2 is 20000mg/L-30000mg/L, preferably 25000 mg/L.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (10)
1. A biochemical treatment device for treating high organic nitrogen wastewater is characterized by comprising:
the anaerobic system is used for carrying out microbial bio-separation treatment on liquid in the anaerobic system;
the first anoxic system is positioned at the downstream of the anaerobic system and is used for performing denitrification treatment on liquid in the first anoxic system;
the first aerobic system is positioned at the downstream of the first anoxic system and is used for carrying out nitration treatment on liquid in the first anoxic system;
the second anoxic system is positioned at the downstream of the first aerobic system and is used for performing denitrification treatment on liquid in the second anoxic system;
the second aerobic system is positioned at the downstream of the second anoxic system and is used for nitrifying the liquid in the second anoxic system;
the sedimentation tank is positioned at the downstream of the second aerobic system and is used for carrying out sedimentation treatment on liquid in the sedimentation tank;
the nitrifying liquid reflux system is used for partially refluxing the nitrifying liquid in the second aerobic system to the anaerobic system and partially refluxing the nitrifying liquid in the first aerobic system;
the sludge backflow system is used for returning a part of sludge in the sedimentation tank to the first anoxic system;
the wastewater to be treated sequentially flows through the anaerobic system, the first anoxic system, the first aerobic system, the second anoxic system, the second aerobic system and the sedimentation tank.
2. The biochemical treatment apparatus for treating wastewater with high organic nitrogen according to claim 1, further comprising: and the at least two stirring systems are respectively arranged in the first anoxic system and the second anoxic system and are used for stirring the liquid in the first anoxic system and the second anoxic system.
3. The biochemical treatment apparatus for treating wastewater with high organic nitrogen according to claim 1, further comprising: and the at least two aeration systems are respectively arranged in the first aerobic system and the second aerobic system and are used for increasing the oxygen content of the liquid in the first aerobic system and the second aerobic system.
4. The biochemical treatment apparatus for treating wastewater with high organic nitrogen content according to claim 1, wherein the reflux ratio of the nitrified liquid in the second aerobic system is 100-200%.
5. The biochemical treatment apparatus for treating wastewater with high organic nitrogen content according to claim 1, wherein the reflux ratio of sludge in the sedimentation tank is 50% to 150%.
6. The biochemical treatment apparatus for treating wastewater with high organic nitrogen content according to claim 5, wherein the reflux ratio of sludge in the sedimentation tank is 100%.
7. The biochemical treatment apparatus for treating wastewater with high organic nitrogen content according to claim 1, wherein DO value in the first aerobic system and DO value in the second aerobic system are 2 mg/L-4 mg/L, and sludge concentration is 3200 mg/L-3800 mg/L.
8. The biochemical treatment apparatus for treating wastewater with high organic nitrogen content according to claim 7, wherein DO value in the first aerobic system and DO value in the second aerobic system are 3mg/L, and sludge concentration is 3500 mg/L.
9. The biochemical treatment apparatus for treating wastewater with high organic nitrogen content according to claim 1, wherein the sludge concentration in the anaerobic system is 20000mg/L-30000 mg/L.
10. The biochemical treatment apparatus for treating wastewater with high organic nitrogen content according to claim 9, wherein the sludge concentration in said anaerobic system is 25000 mg/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010038599.3A CN111204862A (en) | 2020-01-14 | 2020-01-14 | Biochemical treatment device for treating high organic nitrogen wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010038599.3A CN111204862A (en) | 2020-01-14 | 2020-01-14 | Biochemical treatment device for treating high organic nitrogen wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111204862A true CN111204862A (en) | 2020-05-29 |
Family
ID=70780549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010038599.3A Pending CN111204862A (en) | 2020-01-14 | 2020-01-14 | Biochemical treatment device for treating high organic nitrogen wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111204862A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112979055A (en) * | 2020-12-30 | 2021-06-18 | 武汉宝捷能环境工程技术有限公司 | UMIF synchronous nitrogen and phosphorus removal integrated tank for mixed liquid online fermentation and application method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050028985A (en) * | 2003-09-19 | 2005-03-24 | 안대희 | A wastewater treatment apparatus combined a membrane soaked biological reactor and an anaerobic granule sludge packed reactor |
| US20060249449A1 (en) * | 2005-05-03 | 2006-11-09 | University Of Western Ontario | Treatment of wastewater containing phosphorous and nitrogen |
| CN102515437A (en) * | 2011-12-21 | 2012-06-27 | 江苏省环境科学研究院 | Chemical industry park's wastewater bio-treatment apparatus and method thereof |
| CN204550197U (en) * | 2015-02-13 | 2015-08-12 | 中蓝连海设计研究院 | A kind for the treatment of unit being applicable to high density, difficult degradation organic nitrogen-containing waste water total nitrogen |
| CN206985961U (en) * | 2017-05-26 | 2018-02-09 | 上海能辉科技股份有限公司 | Buried integrated sewage processing unit for photovoltaic plant |
-
2020
- 2020-01-14 CN CN202010038599.3A patent/CN111204862A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050028985A (en) * | 2003-09-19 | 2005-03-24 | 안대희 | A wastewater treatment apparatus combined a membrane soaked biological reactor and an anaerobic granule sludge packed reactor |
| US20060249449A1 (en) * | 2005-05-03 | 2006-11-09 | University Of Western Ontario | Treatment of wastewater containing phosphorous and nitrogen |
| CN102515437A (en) * | 2011-12-21 | 2012-06-27 | 江苏省环境科学研究院 | Chemical industry park's wastewater bio-treatment apparatus and method thereof |
| CN204550197U (en) * | 2015-02-13 | 2015-08-12 | 中蓝连海设计研究院 | A kind for the treatment of unit being applicable to high density, difficult degradation organic nitrogen-containing waste water total nitrogen |
| CN206985961U (en) * | 2017-05-26 | 2018-02-09 | 上海能辉科技股份有限公司 | Buried integrated sewage processing unit for photovoltaic plant |
Non-Patent Citations (2)
| Title |
|---|
| 苏东辉等: "复合MBR组合工艺在生活垃圾焚烧发电厂渗滤液处理中的应用", 《环境科技》 * |
| 蒋岚岚等: "《膜生物反应器工艺设计及工程实例》", 31 January 2015 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112979055A (en) * | 2020-12-30 | 2021-06-18 | 武汉宝捷能环境工程技术有限公司 | UMIF synchronous nitrogen and phosphorus removal integrated tank for mixed liquid online fermentation and application method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108046518B (en) | Enhanced nitrogen and phosphorus removal device and method for low-carbon source sewage | |
| CN112456643A (en) | System and method for realizing partial anaerobic ammonia oxidation deep nitrogen and phosphorus removal by circulating and alternately utilizing main flow and side flow zone biomembrane of urban sewage treatment plant | |
| CN109179656A (en) | A kind of high concentration organic nitrogen waste water dis posal technique | |
| CN101885560A (en) | Coking wastewater full-denitrifying treatment process by adopting activated sludge method | |
| CN106430854A (en) | Denitrification treatment method for livestock and poultry breeding wastewater | |
| CN205442947U (en) | Coking wastewater treatment system | |
| KR100386224B1 (en) | Advanced Piggery Wastewater Treatment System | |
| CN110615532A (en) | Device and method for simultaneous nitrogen and phosphorus removal of continuous flow municipal sewage sludge by double-reflux AOAO | |
| CN109761454A (en) | A method of advanced nitrogen is realized by denitrifying ammoxidation MBBR technique | |
| CN111204862A (en) | Biochemical treatment device for treating high organic nitrogen wastewater | |
| KR20110059692A (en) | Apparatus for removing nitrogen from anaerobic digested waste water | |
| CN215855353U (en) | Biological carbon and nitrogen removal integrated reactor for treating organic nitrogen wastewater | |
| KR101045975B1 (en) | Method for removing nitrogen from anaerobic digested waste water | |
| JPS6133638B2 (en) | ||
| CN114620830A (en) | Municipal sewage treatment system and method | |
| CN113845221A (en) | Biological carbon and nitrogen removal integrated reactor for treating organic nitrogen wastewater | |
| CN107055972A (en) | Multiple grain brewing wastewater enhanced nitrogen removal process | |
| CN113480096A (en) | Sewage treatment system and process for step-by-step backflow and double circulation of biological activated sludge | |
| CN112919728A (en) | Blue algae mud pressure filtrate treatment method | |
| CN111960537A (en) | System and method for realizing anaerobic ammonia oxidation denitrification of low-ammonia-nitrogen wastewater by using side anaerobic high-pH and FA to inhibit NOB | |
| CN211394201U (en) | A/O sewage treatment two-stage denitrification system | |
| JPH0125633B2 (en) | ||
| CN113620426B (en) | Multistage anoxic-aerobic sewage treatment equipment and method | |
| CN113620427B (en) | Biochemical treatment equipment and method for denitrification and dephosphorization | |
| CN114524518B (en) | Wastewater treatment system and method based on AO-ANAMMOX process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200529 |
|
| RJ01 | Rejection of invention patent application after publication |