CN112678958A - Multi-point water inlet sleeve type inversion A2O + MBBR integrated sewage treatment device - Google Patents

Multi-point water inlet sleeve type inversion A2O + MBBR integrated sewage treatment device Download PDF

Info

Publication number
CN112678958A
CN112678958A CN202011545345.7A CN202011545345A CN112678958A CN 112678958 A CN112678958 A CN 112678958A CN 202011545345 A CN202011545345 A CN 202011545345A CN 112678958 A CN112678958 A CN 112678958A
Authority
CN
China
Prior art keywords
aerobic
water inlet
anoxic
sludge
hydrolysis
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
CN202011545345.7A
Other languages
Chinese (zh)
Inventor
郑志宏
范振强
刘崇
王智勇
陆建红
米晓
邵阳
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.)
North China University of Water Resources and Electric Power
Original Assignee
North China University of Water Resources and Electric Power
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 North China University of Water Resources and Electric Power filed Critical North China University of Water Resources and Electric Power
Priority to CN202011545345.7A priority Critical patent/CN112678958A/en
Publication of CN112678958A publication Critical patent/CN112678958A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

本发明提供了一种多点进水套式倒置A2O+MBBR一体化污水处理装置,包括原水进水管,依次包括第一缺氧装置、第一厌氧装置、第二缺氧装置和好氧装置,所述好氧装置与沉淀装置相连,沉淀装置与污泥水解装置相连,所述原水进水管分别与第一缺氧装置、第一厌氧装置、第二缺氧装置和好氧装置相连。本发明以多点进水的嵌套式倒置A2O+MBBR为主体生物处理工艺,出水经斜管沉淀单元,上清液出水为系统出水,斜管沉淀单元部分污泥直接回流至主体生物处理工艺,部分污泥进入侧流水解单元,侧流水解上清液回流至主体生物处理工艺。该工艺及设备去除有机物、脱氮除磷效果好,对进水负荷变化适应性强,产生污泥量小。

Figure 202011545345

The invention provides a multi-point water inlet jacket type inverted A 2 O + MBBR integrated sewage treatment device, which includes a raw water inlet pipe, and sequentially includes a first anoxic device, a first anaerobic device, a second anoxic device and a good an oxygen device, the aerobic device is connected with the sedimentation device, the sedimentation device is connected with the sludge hydrolysis device, and the raw water inlet pipe is respectively connected with the first anoxic device, the first anaerobic device, the second anoxic device and the aerobic device connected. The invention takes the nested inverted A 2 O+MBBR with multi-point water inlet as the main biological treatment process, the effluent passes through the inclined tube precipitation unit, the supernatant liquid effluent is the system effluent, and part of the sludge in the inclined tube precipitation unit directly returns to the main biological treatment In the treatment process, part of the sludge enters the side stream hydrolysis unit, and the side stream hydrolysis supernatant is returned to the main biological treatment process. The process and equipment have good effects of removing organic matter, nitrogen and phosphorus, strong adaptability to changes in influent load, and small amount of sludge produced.

Figure 202011545345

Description

Multi-point water inlet sleeve type inversion A2O + MBBR integrated sewage treatment device
Technical Field
The invention relates to the technical field of biological sewage treatment, in particular to a multi-point water inlet sleeve type inversion A2O + MBBR integration sewage treatment plant.
Background
The challenges of sewage decentralized treatment practices in some rural residences, tourist attractions, farmhouse happiness and other scenes include strong fluctuation of inlet water quality and water quantity, nitrogen and phosphorus removal and treatment of excess sludge. In practice, in order to solve the contradiction between the low carbon-nitrogen ratio of the inlet water and the carbon source demand of nitrogen and phosphorus removal, the external carbon source becomes a common coping manner. In order to improve the dephosphorization efficiency, many projects add a coagulating sedimentation unit in the decentralized sewage treatment. These approaches not only increase economic costs, but also increase the workload of operation and maintenance. The single project of decentralized sewage treatment produces a small amount of sludge, usually a centralized treatment mode after collection is adopted, and the collection and transportation increase the operation cost. The sludge side-stream hydrolysis or sludge side-stream hydrolysis technology carries out supernatant fluid reflux of partial residual sludge hydrolysis, which can supplement carbon source, reduce sludge discharge capacity, improve phosphorus removal efficiency and improve effluent quality. The technology is not widely applied at present and is mainly applied to municipal sewage treatment plants.
The aforementioned rural residences, tourist attractions, farmhouse happiness and the like have the characteristics that the fluctuation of the quality and the quantity of the sewage in the longitudinal time of each project is high, and the sewage is compared with each other in the transverse direction, so that sewage treatment process equipment is required to have not only impact load resistance but also certain process flow regulation capacity. Most of distributed domestic sewage treatment process equipment solidifies a certain process flow, can only adjust partial parameters such as flow, aeration quantity, reflux quantity and the like, and does not have the adjusting capacity of the process flow.
Disclosure of Invention
The invention provides a multi-point water inlet sleeve type inversion A2An O + MBBR integrated sewage treatment device solves the problem that the sewage treatment efficiency is low because the rural sewage does not have the process flow regulation capability at present.
The technical scheme for realizing the invention is as follows:
the invention is in A2After adding a pre-anoxic section before the O process, the process flow has two anoxic sections, the pre-anoxic section becomes the first anoxic section, A2The anoxic zone in O becomes the second anoxic zone. In A2The O process reflows the mixed liquid at the tail end of the aeration tank to the first anoxic section, and reflows the mixed liquid at the middle section of the aeration tank to the second anoxic section to form a nested inverted A2And (4) O process.
In order to improve the biomass, the anti-impact load capacity and the treatment capacity of the reactor, all biological reaction tanks are filled with suspended fillers to form a Moving Bed Biofilm Reactor (MBBR), and the filling ratio is 30-50%. The whole process of the filling moving bed biological membrane process adopts a cellular baffling type, which is beneficial to forming an adaptive biological membrane at each section and improving the treatment efficiency.
In particular, a multipoint water inlet sleeve type inversion A2O + MBBR integration sewage treatment plant includes the raw water inlet tube, includes first oxygen deficiency device, first anaerobism device, second oxygen deficiency device and good oxygen device in proper order, good oxygen device links to each other with the sediment device, and the sediment device links to each other with mud hydrolysis unit, the raw water inlet tube links to each other with first oxygen deficiency device, first anaerobism device, second oxygen deficiency device and good oxygen device respectively.
And a sludge return pipe is arranged on the sedimentation device and communicated with the first anoxic device.
The aerobic device comprises a first aerobic device, a second aerobic device and a third aerobic device, wherein the first aerobic device is respectively provided with a first return mixing pipe, the first return mixing pipe is communicated with the first anoxic device, and the first aerobic device is also connected with the sedimentation device.
The aerobic section keeps the filler fluidized by aeration, a perforated pipe is adopted for aeration, and a stirrer is arranged at the non-aeration section to keep the filler fluidized.
And a second backflow mixing pipe is arranged on the second aerobic device and communicated with the second anoxic device.
And a hydrolysis return pipe is arranged on the sludge hydrolysis device and is connected with the first aerobic device.
The first anoxic section has raw water in 30%, reflux mixed liquid in reflux ratio of 100-200%, sludge reflux in reflux ratio of 20-50% and hydrolysis supernatant in 10-50%, and obvious denitrification effect. The existence of the first anoxic section is also beneficial to keeping the oxidation-reduction potential of the anaerobic section at a low value, and the treatment stability of the anaerobic section is improved.
The first anaerobic section has low oxidation-reduction potential, and partial raw water (about 10 percent) enters the first anaerobic section, so that the phosphorus accumulating bacteria have better phosphorus release performance in the first anaerobic section.
The second anoxic section has partial raw water (about 40 percent) and reflux mixed liquid (100-; the second anaerobic stage continues to release phosphorus.
Part of raw water (about 0-20%) enters the first half section of the aerobic section, dissolved oxygen is kept at 1-1.5mg/L, and denitrification and organic matter degradation are simultaneously carried out under the action of suspended sludge and a biological membrane. The dissolved oxygen of the second half section of the aerobic section is kept at 2-2.5mg/L, the organic matter is continuously degraded, and the remaining ammonia nitrogen is nitrified.
The sedimentation tank adopts an inclined tube for sedimentation.
The sludge hydrolysis tank adopts vertical flow sedimentation. The sludge hydrolysis tank has the following functions: sludge reduction; secondly, the sludge hydrolysis supernatant flows back to the pre-anoxic section, so that carbon sources required by denitrification can be effectively supplemented, and the nitrogen and phosphorus removal effect is improved; and the sludge storage tank has the effect of sludge storage, the excess sludge is intermittently discharged from the sludge hydrolysis tank, the treatment effect of the main flow process is not influenced, and the sludge discharge period can be effectively prolonged.
The realization of multiple spot is intake, sets up the point of intaking in four positions such as first anoxic zone, first anaerobism section, second anoxic zone and aerobic section front end. The opening and closing of the four water inlet valves and the flow regulation, and the opening and closing of the two mixed liquid reflux pumps can enable the first anoxic section, the first anaerobic section and the second anoxic section to be switched among anaerobic/anoxic states, and the adaptive fine adjustment of the process flow is realized.
The reasonable plane arrangement of the process flow greatly reduces the use amount of the pipeline of the integrated equipment, and the whole layout is compact and reasonable.
The process equipment can realize good CODcrTotal nitrogen, ammonia nitrogen and total phosphorus are removed, and the sludge production amount is small. Realizes the COD of the effluent under the condition of the conventional domestic sewage inflowcrLess than 50mg/L, total nitrogen less than 15 mg/L, ammonia nitrogen less than 5mg/L, and total phosphorus less than 0.5 mg/L.
The invention has the beneficial effects that: the invention organically integrates sludge side-stream hydrolysis and inversion A based on the dispersed sewage treatment requirement2O, MBBR, etc., and optimizing unit layout, provides a multi-point water inlet side stream hydrolysis nested inversion A for distributed sewage treatment2An O + MBBR technology and an integrated device, specifically a nested inversion A with multi-point water inflow2The O + MBBR is a main biological treatment process, effluent passes through an inclined tube precipitation unit, supernatant effluent is system effluent, partial sludge in the inclined tube precipitation unit directly flows back to the main biological treatment process, partial sludge enters a lateral flow hydrolysis unit, and lateral flow hydrolysis supernatant flows back to the main biological treatment process. The process and the equipment have good effects of removing organic matters, removing nitrogen and phosphorus, have strong adaptability to the change of the water inlet load and produce small amount of sludge.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a process flow diagram of the present invention.
Fig. 2 is a schematic structural diagram.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
As shown in FIG. 1, the present invention is shown at A2After adding a pre-anoxic section before the O process, the process flow has two anoxic sections, the pre-anoxic section becomes the first anoxic section, A2The anoxic zone in O becomes the second anoxic zone. In A2The O process reflows the mixed liquid at the tail end of the aeration tank to the first anoxic section, and reflows the mixed liquid at the middle section of the aeration tank to the second anoxic section to form a nested inverted A2And (4) O process.
As shown in fig. 2, the multiple water inlet sleeve type inversion A2O + MBBR integration sewage treatment plant, including raw water inlet tube 12, include first oxygen deficiency device 1, first anaerobism device 2, second oxygen deficiency device 3 and aerobic apparatus in proper order, aerobic apparatus links to each other with precipitation device 4, and precipitation device 4 links to each other with sludge hydrolysis device 5, the raw water inlet tube links to each other with first oxygen deficiency device 1, first anaerobism device 2, second oxygen deficiency device 3 and aerobic apparatus respectively.
And a sludge return pipe is arranged on the sedimentation device 4 and communicated with the first oxygen-poor device 1.
The aerobic device comprises a first aerobic device 6, a second aerobic device 7 and a third aerobic device 8, the first aerobic device 6 is respectively provided with a first return mixing pipe 9, the first return mixing pipe 9 is communicated with the first anoxic device 1, and the first aerobic device 6 is also connected with the sedimentation device 4.
And a second backflow mixing pipe 10 is arranged on the second aerobic device 7, and the second backflow mixing pipe 10 is communicated with the second anoxic device 3.
The sludge hydrolysis device 5 is provided with a hydrolysis return pipe 11, and the hydrolysis return pipe 11 is connected with the first aerobic device 6.
The first anoxic device 1 has raw water (about 30 percent) inlet, reflux mixed liquor (reflux ratio 100-.
The first aerobic device 6 has partial raw water (about 0-20%) entering, the dissolved oxygen is kept at 1-1.5mg/L, and the dissolved oxygen of the third aerobic device 6 is kept at 2-2.5 mg/L.
Preferably, the sedimentation tank adopts an inclined tube for sedimentation.
The sludge hydrolysis tank adopts vertical flow sedimentation. The sludge hydrolysis tank has the following functions: sludge reduction; secondly, the sludge hydrolysis supernatant flows back to the pre-anoxic section, so that carbon sources required by denitrification can be effectively supplemented, and the nitrogen and phosphorus removal effect is improved; and the sludge storage tank has the effect of sludge storage, the excess sludge is intermittently discharged from the sludge hydrolysis tank, the treatment effect of the main flow process is not influenced, and the sludge discharge period can be effectively prolonged.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (8)

1. Multi-point water inlet sleeve type inversion A2O + MBBR integration sewage treatment plant, including raw water inlet tube (12), its characterized in that: include first oxygen deficiency device (1), first anaerobism device (2), second oxygen deficiency device (3) and aerobic apparatus in proper order, aerobic apparatus links to each other with sediment device (4), and sediment device (4) link to each other with mud hydrolysis unit (5), the raw water inlet tube links to each other with first oxygen deficiency device (1), first anaerobism device (2), second oxygen deficiency device (3) and aerobic apparatus respectively.
2. The apparatus of claim 1, wherein: and a sludge return pipe is arranged on the sedimentation device (4), and is communicated with the first anoxic device (1).
3. The apparatus of claim 1 or 2, wherein: the aerobic device comprises a first aerobic device (6), a second aerobic device (7) and a third aerobic device (8), wherein the first aerobic device (6) is respectively provided with a first backflow mixing pipe (9), the first backflow mixing pipe (9) is communicated with the first anoxic device (1), and the first aerobic device (6) is also connected with the sedimentation device (4).
4. The apparatus of claim 3, wherein: and a second backflow mixing pipe (10) is arranged on the second aerobic device (7), and the second backflow mixing pipe (10) is communicated with the second anoxic device (3).
5. The apparatus of claim 4, wherein: the sludge hydrolysis device (5) is provided with a hydrolysis return pipe (11), and the hydrolysis return pipe (11) is connected with the first aerobic device (6).
6. The apparatus of claim 5, wherein: the first anoxic device (1) comprises 30 percent of raw water inlet, 100 percent of return water of the first return mixing pipe (9) with the return ratio of 200 percent, 20 to 50 percent of sludge return and 10 to 50 percent of return water of the hydrolysis return pipe (11).
7. The apparatus of claim 5, wherein: the dissolved oxygen of the first aerobic device (6) is kept between 1 and 1.5mg/L, and the dissolved oxygen of the third aerobic device (6) is kept between 2 and 2.5 mg/L.
8. The apparatus according to any one of claims 4-7, wherein: after treatment, the effluent CODcrLess than 50mg/L, total nitrogen less than 15 mg/L, ammonia nitrogen less than 5mg/L, and total phosphorus less than 0.5 mg/L.
CN202011545345.7A 2020-12-24 2020-12-24 Multi-point water inlet sleeve type inversion A2O + MBBR integrated sewage treatment device Pending CN112678958A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011545345.7A CN112678958A (en) 2020-12-24 2020-12-24 Multi-point water inlet sleeve type inversion A2O + MBBR integrated sewage treatment device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011545345.7A CN112678958A (en) 2020-12-24 2020-12-24 Multi-point water inlet sleeve type inversion A2O + MBBR integrated sewage treatment device

Publications (1)

Publication Number Publication Date
CN112678958A true CN112678958A (en) 2021-04-20

Family

ID=75451458

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011545345.7A Pending CN112678958A (en) 2020-12-24 2020-12-24 Multi-point water inlet sleeve type inversion A2O + MBBR integrated sewage treatment device

Country Status (1)

Country Link
CN (1) CN112678958A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114349290A (en) * 2022-01-19 2022-04-15 上海市机电设计研究院有限公司 An enhanced phosphorus removal method based on MBBR sewage treatment process

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120152814A1 (en) * 2010-12-20 2012-06-21 Palo Alto Research Center Incorporated Membrane bioreactor (mbr) and moving bed bioreactor (mbbr) configurations for wastewater treatment
CN103739169A (en) * 2014-01-21 2014-04-23 中冶华天工程技术有限公司 Nitrogen and phosphorus removal method for biological sewage treatment
CN104761100A (en) * 2015-03-17 2015-07-08 东莞市智汇水务科技有限公司 Sewage treatment system
CN204569543U (en) * 2015-02-02 2015-08-19 浦华环保有限公司 The multi-format A of mud anoxic and enhanced hydrolysis anaerobism 2o system
CN104891754A (en) * 2015-07-09 2015-09-09 王洪臣 Wastewater treatment process and wastewater treatment system
CN105461061A (en) * 2015-12-31 2016-04-06 华南理工大学 A device and method for A2/O-biological synchronous denitrification and dephosphorization of urban sewage
CN109264859A (en) * 2017-07-17 2019-01-25 广东新会中集特种运输设备有限公司 A2O2Sewage disposal system and its processing method
CN110759585A (en) * 2019-10-10 2020-02-07 天津中冀源环保科技有限公司 Device and method for removing total nitrogen in sewage

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120152814A1 (en) * 2010-12-20 2012-06-21 Palo Alto Research Center Incorporated Membrane bioreactor (mbr) and moving bed bioreactor (mbbr) configurations for wastewater treatment
CN103739169A (en) * 2014-01-21 2014-04-23 中冶华天工程技术有限公司 Nitrogen and phosphorus removal method for biological sewage treatment
CN204569543U (en) * 2015-02-02 2015-08-19 浦华环保有限公司 The multi-format A of mud anoxic and enhanced hydrolysis anaerobism 2o system
CN104761100A (en) * 2015-03-17 2015-07-08 东莞市智汇水务科技有限公司 Sewage treatment system
CN104891754A (en) * 2015-07-09 2015-09-09 王洪臣 Wastewater treatment process and wastewater treatment system
CN105461061A (en) * 2015-12-31 2016-04-06 华南理工大学 A device and method for A2/O-biological synchronous denitrification and dephosphorization of urban sewage
CN109264859A (en) * 2017-07-17 2019-01-25 广东新会中集特种运输设备有限公司 A2O2Sewage disposal system and its processing method
CN110759585A (en) * 2019-10-10 2020-02-07 天津中冀源环保科技有限公司 Device and method for removing total nitrogen in sewage

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
刘建伟: "《污水生物处理新技术》", 30 September 2016, 中国建材工业出版社 *
王佳伟等: "基于碳源需求的A2/O工艺分段进水研究", 《中国给水排水》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114349290A (en) * 2022-01-19 2022-04-15 上海市机电设计研究院有限公司 An enhanced phosphorus removal method based on MBBR sewage treatment process

Similar Documents

Publication Publication Date Title
CN109368792B (en) Method and device for treating urban sewage by double-return AOA short-range nitrification coupled with anaerobic ammonia oxidation and endogenous denitrification
CN103936150B (en) The low C/N municipal effluent short distance nitration/Anammox+denitrification method of Continuous Flow
CN104556376B (en) The municipal sewage biological phosphate-eliminating autotrophic denitrification method of nitrite is provided based on short-cut denitrification
CN105948251A (en) Multistage A/O (anoxic/oxic) biomembrane-sludge activation coupled denitrification and dephosphorization device and application thereof
CN107032489A (en) Realize the method that the short distance Anammoxs of continuous stream AOA half couple endogenous denitrification
CN108585385B (en) MBBR sewage treatment system and treatment process
CN104512963B (en) A kind of multistage simultaneous nitrification-denitrification biofilm system denitrogenation method of integral type and device
CN102826715A (en) Sewage treatment method for nitrogen and phosphorus removal through combination of biofilm process and multilevel activated sludge process
CN104944679B (en) Treatment method of dispersed high-ammonia-nitrogen sewage
CN108585347B (en) Device and method for adjusting low C/N urban sewage through segmented water inlet oxidation ditch process
CN100410189C (en) Nitrification and denitrification integrated sewage denitrification biofilm reactor
CN110015756A (en) A denitrification and phosphorus removal coupled vibration anoxic MBR device and process
CN105967435A (en) Double-circulation nitrogen and phosphorus removal wastewater treatment system and process
CN103011515A (en) Soybean wastewater biochemical treatment process and device
CN209989143U (en) Denitrifying phosphorus removal coupling vibration oxygen deficiency MBR device
CN209835881U (en) Distributed household type integrated sewage treatment device suitable for rural areas
CN112678958A (en) Multi-point water inlet sleeve type inversion A2O + MBBR integrated sewage treatment device
CN203593662U (en) Sewage denitrifying treatment device through alternatively multi-point water inflowing and multi-layer composite filler filling
CN212102192U (en) Rural sewage integrated treatment equipment switched to operate in AAO or SBBR mode
CN209835753U (en) A biofilm reactor for efficient denitrification of sewage
CN201406361Y (en) A landfill leachate wastewater treatment device
CN109775936B (en) Low-energy-consumption domestic sewage treatment system
CN220283796U (en) Multi-point backflow reinforced municipal sewage autotrophic denitrification system with segmented water inflow
WO2020103270A1 (en) Three-phase efficient oxygen supplement artificial wetland system
CN212894333U (en) Urban sewage SDA + BAF's processing system

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
RJ01 Rejection of invention patent application after publication

Application publication date: 20210420