CN102557250A - Biogas circulating electromagnetic anaerobic membrane bio-reactor for wastewater treatment - Google Patents
Biogas circulating electromagnetic anaerobic membrane bio-reactor for wastewater treatment Download PDFInfo
- Publication number
- CN102557250A CN102557250A CN2012100149093A CN201210014909A CN102557250A CN 102557250 A CN102557250 A CN 102557250A CN 2012100149093 A CN2012100149093 A CN 2012100149093A CN 201210014909 A CN201210014909 A CN 201210014909A CN 102557250 A CN102557250 A CN 102557250A
- Authority
- CN
- China
- Prior art keywords
- reaction tank
- membrane
- biogas
- waste water
- wastewater
- 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
Images
Classifications
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
-
- 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
Abstract
The invention discloses a biogas circulating electromagnetic anaerobic membrane bio-reactor for wastewater treatment. A reaction tank is separated into a main reaction area and a membrane separation area; the main reaction area and the membrane separation area are communicated at the bottom of the reaction tank; the top in the reaction tank is provided with a biogas collection area; magnetic biological carriers are added into the reaction tank; electrode plates and guide plates are arranged in the main reaction area; the electrode plates are connected with a direct current power supply; membrane components and a membrane washing device are arranged in the membrane separation area; one end of a biogas circulating system on the outer top of the reaction tank is connected with the biogas collection area, and the other end of the biogas circulating system is connected with the membrane washing device; the bottom of the reaction tank is provided with a sludge hopper and a wastewater distribution system; the wastewater distribution system is connected with a wastewater pipeline and a wastewater circulating system; and the water inlet of the wastewater circulating system is communicated with the upper part of the main reaction area of the reaction tank. By the wastewater distribution system, membrane pollution can be reduced, the service life of the membranes is prolonged, and the capacity of treating toxic refractory pollutants of the anaerobic membrane bio-reactor is enhanced.
Description
Technical field
The invention belongs to water and pollute processing and prevention and control field, be specifically related to a kind of circulating electromagnetism anaerobic membrane bioreactor of biogas that is used for wastewater treatment.
Background technology
Anaerobic membrane bioreactor (Anaerobic Membrane Bio-Reactor; Be called for short AMBR) be the novel water technology that a kind of anaerobe technology combines with the high performance membrane stripping technique; It mainly is to utilize the membrane module of being immersed in the anaerobe pond to realize solid-liquid separation, holds back anaerobion and larger molecular organics in the pond.This technology has the larger molecular organics that keeps high microorganism concentration, improve the reactor drum organic loading, reduce the sewage treatment facility floor space, reduce surplus sludge volume, make some difficult degradations because of advantage such as decomposed to greatest extent in the prolongation of the residence time of reactor drum.But keeping away unavoidable membrane pollution problem has become the important factor that hinders the fast development of AMBR technology.AMBR can be divided into two kinds of separated type AMBR and integral type AMBR, wherein separated type help equipment cleaning, change, set up, but the shearing force that the high speed rotating of recycle pump produces can make the certain micro-organisms thalline produce deactivation phenomenom; Integral type is not used the mixed solution recycle pump, can save circulation and dispose with pipeline, but film cleans comparatively difficulty, and membrane pollution problem is difficult to resolve determines.At present, the AMBR Study on Technology will concentrate on: the research and the prevention of (1) film pollution mechanism; (2) research and development of new membrane material; (3) further raising of level of automation etc.
Summary of the invention
The object of the invention is to the above-mentioned defective that exists in the prior art, provides a kind of film pollution, the work-ing life that prolongs film, reinforced anaerobic membrane bioreactor of reducing to the circulating electromagnetism anaerobic membrane bioreactor of the biogas of the processing power of poisonous difficult degradation pollutent.
The present invention seeks to realize through following technical scheme: this is used for the circulating electromagnetism anaerobic membrane bioreactor of biogas of wastewater treatment; It comprises a reaction tank; The top of reaction tank is separated into main reaction region and membrane separation zone; Main reaction region and membrane separation zone be UNICOM in the bottom of reaction tank, and the reaction tank inner top is provided with a biogas gas collection district, adds magnetic bio-carrier in the reaction tank; The top of said main reaction region is provided with the pair of electrical pole plate, and the electroplax plate links to each other with the outer direct supply of reaction tank, and the bottom of main reaction region is provided with a pair of vertical flow deflector; The top of said membrane separation zone is provided with one or more groups membrane module; Be provided with the film flushing arrangement under the membrane module; The top is provided with the biogas recycle system outside reaction tank, and the unified end of biogas circulatory system is connected with the biogas gas collection district of reaction tank, and an end is connected with the film flushing arrangement; The bottom of reaction tank is provided with funnel shaped sludge bucket, and the bottom centre of sludge bucket is under the middle part of said flow deflector, and is provided with the waste water system of distribution; The feed-water end of waste water system of distribution and waste pipe UNICOM are connected on the water side of the waste water recycle system through pipeline simultaneously, and the feed-water end of the waste water recycle system is connected to the main reaction region top of reaction tank through pipeline; Waste water filters the back through said membrane module and discharges reaction tank.
More particularly, said membrane module comprises that the cross section is I-shaped membrane support and the row's hollow-fibre membrane that sticks to the membrane support both sides respectively.
The said biogas recycle system mainly comprises a vacuum cycle pump; Said waste water system of distribution mainly comprises a water distributor; The said waste water recycle system mainly comprises a water circulating pump.
The circulating electromagnetism anaerobic membrane bioreactor of the biogas that is used for wastewater treatment that combined with electrochemical technological development of the present invention goes out; Quicken the decomposition and the conversion of the intermediate product of difficult degradation pollutent and the formation of some anaerobic biodegradation on the one hand through little electric current; Fix through electric field and magnetic bio-carrier on the other hand and improve intrasystem microbe population, thus the contaminant removal capacity of consolidation system.Sectional reactor drum setting not only helps strengthening the mixed effect of main reaction region; Improve the separating effect of membrane separation zone; The biogas that also helps utilizing Anaerobic processes to produce is come the flushing membrane assembly, delays the film pollution course, thus the cleaning interval of membrane component and prolong and work-ing life.Therefore; The present invention has reached the ability of coming reinforced anaerobic Membrane Bioreactor for Wastewater Treatment Persistent organic pollutants through electrochemistry and magnetic microbial carrier; Utilize fixedly anaerobion of electricity, magnetic technology simultaneously; Make their form magnetic anaerobion membrane granule, and the biogas that produces of the recycle Anaerobic processes effect of together coming decelerating membrane pollution.The present invention is applicable to the processing of trade effluent.
At present; The research of membrane Bio-reactor Technology mainly concentrates on mechanism and the prevention that the research film pollutes; Slow down the new technology of polluting with controlling diaphragm; The research and development of new membrane material and further improve aspects such as level of automation, and utilize biogas circulation flushing membrane module, and the AMBR treatment system that combines with electrochemistry and magnetic technology is not appeared in the newspapers as yet.Generally speaking, the present invention and existing AMBR compared with techniques have following advantage and effect:
(1) electrolytic action, magnetic technology are combined with AMBR, proposed the incorporate wastewater treatment equipment of electromagnetism anaerobion first.
(2) utilize the dual function in electric current and magnetic field; Both can form the contaminant removal capacity that fixed anaerobe membrane granule comes the intensified process system to the hormesis of anaerobion and through magnetic bio-carrier through little electric current; Cohesion and separability have been strengthened again to anaerobe film and biological particles; Make as much as possible being retained in the reaction zone of they abilities, can effectively alleviate the pollution on film surface.
(3) utilize biogas circulation flushing membrane module, in the process of anaerobic treatment of waste water, effectively slow down film surface contamination process, effectively prolong the cleaning interval and the work-ing life of film.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
Fig. 2 is the Facad structure synoptic diagram of the membrane module in the embodiment of the invention.
Fig. 3 is the side structure synoptic diagram of the membrane module in the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail.
Referring to Fig. 1; Present embodiment comprises reaction tank 1; Visible from figure, the top of reaction tank 1 is separated into main reaction region 13 and membrane separation zone 14, and main reaction region 13 and membrane separation zone 14 be UNICOM in the bottom of reaction tank 1; Reaction tank 1 inner top is provided with a biogas gas collection district 15, adds magnetic bio-carrier 4 in the reaction tank 1.The anaerobion of magnetic bio-carrier in can 4 fixed systems; Form the microbial film particle; Make these anaerobions be prone to separate with waste water and be retained in for a long time in the reactor drum, thereby improved intrasystem concentration of anaerobic microorganisms, strengthened the contaminant removal capacity of system effectively.The top of main reaction region 13 is provided with pair of electrical pole plate 2, and electroplax plate 2 links to each other with the outer direct supply 3 of reaction tank.Direct supply 3 provides the electric current of strength of current＜10mA, and little electric current can not only stimulate the growth of mikrobe, quickens the metabolism of mikrobe, also helps to assist anaerobion degradation of contaminant and anaerobe reaction to form the intermediate product of some.The bottom of main reaction region 13 is provided with a pair of vertical flow deflector 9.Flow deflector 9 can not only improve the mixed effect of main reaction region, also helps to improve the separating effect of magnetic bio particle and waste water.The top of membrane separation zone 14 is provided with one or more groups membrane module 7; Be provided with film flushing arrangement 8 under the membrane module 7; The top is provided with the biogas recycle system 6 outside reaction tank 1; The biogas recycle system 6 one ends are connected with the biogas gas collection district 15 of reaction tank 1, and an end is connected with film flushing arrangement 8, and the biogas recycle system 6 in the present embodiment mainly comprises a vacuum cycle pump.The biogas recycle system 6 is directed into film flushing arrangement 8 with the biogas that anaerobic reaction produces through the vacuum cycle pump, is used to clean the film surface contamination.Also visible from Fig. 1, the bottom of reaction tank 1 is provided with funnel shaped sludge bucket, and the bottom centre of sludge bucket is under the middle part of flow deflector 9, and is provided with waste water system of distribution 10.The sedimentary magnetic bio membrane granule in membrane separation zone 14 bottoms through gravity and magneticaction, is back to main reaction region 13 bottoms via sludge bucket automatically, continues to participate in biochemical reaction.Waste water system of distribution 10 in the present embodiment mainly comprises a water distributor; The feed-water end of waste water system of distribution 10 and waste pipe 16 UNICOMs; Be connected on the water side of the waste water recycle system 5 through pipeline simultaneously, the feed-water end of the waste water recycle system 5 is connected to main reaction region 13 tops of reaction tank 1 through pipeline.The waste water recycle system 5 in the present embodiment mainly comprises a water circulating pump; But magnetic bio-carrier in the waste water recycle system 5 enhancing reactors, anaerobion and waste water contact mixing and mass transfer effect, for anaerobion is created more favourable existence and living condition in refractory organic industrial sewage.Waste water filters the back through membrane module 7 and discharges reaction tank 1.The present invention handles through reactor drum being carried out the by stages, helps keeping the low microbial biomass of concentration of anaerobic microorganisms high in the main reaction region and membrane separation zone, when improving the whole reactor processing power, can effectively delay the film pollution.
Referring to Fig. 2, Fig. 3, the membrane module 7 in the present embodiment comprises that the cross section is I-shaped membrane support 11 and the row's hollow-fibre membrane 12 that sticks to the membrane support both sides respectively, and hollow-fibre membrane 12 sticks on the membrane support 11 through glue or laser bonding technology.
Working process of the present invention is: waste water gets into main reaction region 13 through header tank or intake pump from the feed-water end of the waste water system of distribution 10 of reaction tank 1 bottom; Multiple effect such as the biogas that provides in electric current that battery lead plate 2 and power supply 3 provide, magnetic field that magnetic bio-carrier 4 provides, waste water internal recycle that the waste water recycle system 5 provides and the biogas recycle system 6 following moment mixes with waste water in the reactor drum; Thereby reduce the into Pollutant levels of water greatly, for anaerobion provides a metastable water inlet condition; Magnetic bio-carrier 4 in the reactor drum is under the effect of electric current, magnetic field and the waste water recycle system; In main reaction region 13, be in and expand or even the fluidizing state; Effectively strengthen contacting and mass transfer process of anaerobion and waste water, helped the microbiological deterioration pollutants in waste water.The waste water that is degraded gets into membrane separation zone 14; Through going out the effect of water pump and membrane module 7, waste water is separated with magnetic bio particle 4 fully, magnetic bio-carrier 4 is under the acting in conjunction of gravity, magnetic force and electric current; Automatically be back to the sludge bucket bottom in the reaction tank 1, continue to participate in reaction.At the top of whole reactor gas collection district 15 is set, is used for collecting the biogas that wastewater treatment process produces.Part biological gas is brought into the bottom of membrane module 7 through the vacuum pump in the biogas recycle system 6; Be used for the pollution on continuous wash film surface, the pollutent of washing off is under action of gravity, to membrane separation zone 14 bottom deposits; Automatically be back to the bottom of reaction tank 1 afterwards, continue to participate in biochemical reaction.
Claims (3)
1. circulating electromagnetism anaerobic membrane bioreactor of biogas that is used for wastewater treatment; It is characterized in that: it comprises a reaction tank; The top of reaction tank is separated into main reaction region and membrane separation zone; Main reaction region and membrane separation zone be UNICOM in the bottom of reaction tank, and the reaction tank inner top is provided with a biogas gas collection district, adds magnetic bio-carrier in the reaction tank; The top of said main reaction region is provided with the pair of electrical pole plate, and the electroplax plate links to each other with the outer direct supply of reaction tank, and the bottom of main reaction region is provided with a pair of vertical flow deflector; The top of said membrane separation zone is provided with one or more groups membrane module; Be provided with the film flushing arrangement under the membrane module; The top is provided with the biogas recycle system outside reaction tank, and the unified end of biogas circulatory system is connected with the biogas gas collection district of reaction tank, and an end is connected with the film flushing arrangement; The bottom of reaction tank is provided with funnel shaped sludge bucket, and the bottom centre of sludge bucket is under the middle part of said flow deflector, and is provided with the waste water system of distribution; The feed-water end of waste water system of distribution and waste pipe UNICOM are connected on the water side of the waste water recycle system through pipeline simultaneously, and the feed-water end of the waste water recycle system is connected to the main reaction region top of reaction tank through pipeline; Waste water filters the back through said membrane module and discharges reaction tank.
2. the circulating electromagnetism anaerobic membrane bioreactor of biogas that is used for wastewater treatment according to claim 1 is characterized in that: said membrane module comprises that the cross section is I-shaped membrane support and the row's hollow-fibre membrane that sticks to the membrane support both sides respectively.
3. the circulating electromagnetism anaerobic membrane bioreactor of biogas that is used for wastewater treatment according to claim 1 and 2, it is characterized in that: the said biogas recycle system mainly comprises a vacuum cycle pump; Said waste water system of distribution mainly comprises a water distributor; The said waste water recycle system mainly comprises a water circulating pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100149093A CN102557250B (en) | 2012-01-18 | 2012-01-18 | Biogas circulating electromagnetic anaerobic membrane bio-reactor for wastewater treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100149093A CN102557250B (en) | 2012-01-18 | 2012-01-18 | Biogas circulating electromagnetic anaerobic membrane bio-reactor for wastewater treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102557250A true CN102557250A (en) | 2012-07-11 |
| CN102557250B CN102557250B (en) | 2013-10-23 |
Family
ID=46404071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100149093A Expired - Fee Related CN102557250B (en) | 2012-01-18 | 2012-01-18 | Biogas circulating electromagnetic anaerobic membrane bio-reactor for wastewater treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102557250B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103922468A (en) * | 2014-03-17 | 2014-07-16 | 大连民族学院 | Low-energy consumption aeration-free domestic sewage recycling apparatus |
| CN106010967A (en) * | 2016-06-21 | 2016-10-12 | 浙江工业大学 | Temperature control type biological membrane culture experiment method for eliminating magnetic field influence and device |
| CN106006960A (en) * | 2016-07-18 | 2016-10-12 | 广德清源水处理设备有限公司 | Anoxic baffled reactor and operation method thereof |
| CN109179631A (en) * | 2018-08-06 | 2019-01-11 | 清华大学 | The anaerobism electrochemical membrane bioreactor of dephosphorization can be synchronized |
| WO2020250034A1 (en) | 2019-06-11 | 2020-12-17 | Metro Vancouver Regional District | Syntrophic enrichment for enhanced digestion process |
| EP3634917A4 (en) * | 2017-06-05 | 2021-05-12 | Cambrian Innovation, Inc. | Process for a fixed film reactor and apparatus related thereto |
| CN115321748A (en) * | 2022-07-19 | 2022-11-11 | 江苏省环境工程技术有限公司 | Jet circulation type membrane bioreactor based on gas lift effect |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101397168A (en) * | 2008-11-05 | 2009-04-01 | 江苏大学 | Method for decelerating membrane pollution by adding magnetic ferrite powder |
| CN101941759A (en) * | 2010-08-16 | 2011-01-12 | 大连理工大学 | Method for improving pollution resistance and flux of membrane by using weak electric field |
-
2012
- 2012-01-18 CN CN2012100149093A patent/CN102557250B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101397168A (en) * | 2008-11-05 | 2009-04-01 | 江苏大学 | Method for decelerating membrane pollution by adding magnetic ferrite powder |
| CN101941759A (en) * | 2010-08-16 | 2011-01-12 | 大连理工大学 | Method for improving pollution resistance and flux of membrane by using weak electric field |
Non-Patent Citations (2)
| Title |
|---|
| 《国外沼气》 19891031 中村忠等 "厌氧生物反应器和膜分离系统工业废水处理方法" 第22-30页 1-3 , 第10期 * |
| 中村忠等: ""厌氧生物反应器和膜分离系统工业废水处理方法"", 《国外沼气》 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103922468A (en) * | 2014-03-17 | 2014-07-16 | 大连民族学院 | Low-energy consumption aeration-free domestic sewage recycling apparatus |
| CN103922468B (en) * | 2014-03-17 | 2015-06-10 | 大连民族学院 | Low-energy consumption aeration-free domestic sewage recycling apparatus |
| CN106010967A (en) * | 2016-06-21 | 2016-10-12 | 浙江工业大学 | Temperature control type biological membrane culture experiment method for eliminating magnetic field influence and device |
| CN106010967B (en) * | 2016-06-21 | 2022-03-18 | 浙江工业大学 | Temperature-controlled biofilm culture experimental method and device for eliminating magnetic field influence |
| CN106006960A (en) * | 2016-07-18 | 2016-10-12 | 广德清源水处理设备有限公司 | Anoxic baffled reactor and operation method thereof |
| EP3634917A4 (en) * | 2017-06-05 | 2021-05-12 | Cambrian Innovation, Inc. | Process for a fixed film reactor and apparatus related thereto |
| CN109179631A (en) * | 2018-08-06 | 2019-01-11 | 清华大学 | The anaerobism electrochemical membrane bioreactor of dephosphorization can be synchronized |
| WO2020250034A1 (en) | 2019-06-11 | 2020-12-17 | Metro Vancouver Regional District | Syntrophic enrichment for enhanced digestion process |
| US11274054B2 (en) | 2019-06-11 | 2022-03-15 | Metro Vancouver Regional District | Syntrophic enrichment for enhanced digestion process |
| EP3983345A4 (en) * | 2019-06-11 | 2023-07-12 | Metro Vancouver Regional District | Syntrophic enrichment for enhanced digestion process |
| AU2020291810B2 (en) * | 2019-06-11 | 2023-10-05 | Greater Vancouver Sewerage & Drainage District | Syntrophic enrichment for enhanced digestion process |
| CN115321748A (en) * | 2022-07-19 | 2022-11-11 | 江苏省环境工程技术有限公司 | Jet circulation type membrane bioreactor based on gas lift effect |
| CN115321748B (en) * | 2022-07-19 | 2023-10-24 | 江苏省环境工程技术有限公司 | Jet circulation type membrane bioreactor based on gas lift effect |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102557250B (en) | 2013-10-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102557250B (en) | Biogas circulating electromagnetic anaerobic membrane bio-reactor for wastewater treatment | |
| Li et al. | Advances in energy-producing anaerobic biotechnologies for municipal wastewater treatment | |
| CN202089869U (en) | High-efficient composite reaction device for anaerobic organism | |
| CN104118931B (en) | A kind of electricity biological coupling water cleaning systems and process for purifying water | |
| CN102557240A (en) | Electromagnetic aerobic membrane bio-reactor for treating wastewater | |
| CN102583898B (en) | Enhanced hard-degradation-wastewater treatment device with biocatalysis electrolysis and anaerobic hydrolysis acidification being coupled | |
| CN101538100A (en) | Method for treating dyeing wastewater and dedicated device | |
| CN205773937U (en) | A kind of ozone occurs and processing means | |
| CN110240367B (en) | Sewage treatment system and method for synchronous and efficient removal of carbon, nitrogen and phosphorus | |
| CN202643385U (en) | Treatment device for electrolyzation catalytic oxidation wastewater | |
| CN202390287U (en) | Internal iron-carbon UASB-SBR (Upflow Anaerobic Sludge Blanket-Sequencing Batch Reactor) coupling system for treatment of printing and dyeing wastewater | |
| CN114084998A (en) | Rubbish transfer station waste water and domestic sewage cooperative processing system | |
| CN201538699U (en) | Wastewater treatment device for online-cleaning catalytic particles | |
| CN101624253A (en) | High efficient complex enzyme sewage treatment process and high efficient complex enzyme sewage treatment device | |
| CN102701543B (en) | Water treatment device combining microbial fuel cells with membrane technology | |
| CN210176665U (en) | Electrocatalytic oxidation treatment system for domestic sewage | |
| CN102249409B (en) | Device and method for strengthening treatment of anaerobic sewage by using solar energy | |
| CN102139993A (en) | Modular small-scale domestic sewage treatment system | |
| CN101555083A (en) | Baffling contact precipitation integral anaerobic reactor | |
| CN202063797U (en) | High-concentration printing and dyeing wastewater treatment system | |
| CN208829515U (en) | A kind of landfill leachate is without film processing system | |
| CN210945262U (en) | Cosmetic production wastewater treatment system | |
| CN214457451U (en) | Integrated EC-AO-MBR water treatment equipment | |
| CN101891351A (en) | Two-stage anaerobic membrane bioreactor | |
| CN201495154U (en) | Biological wastewater treatment system combining biological fluidized bed with biological filter bed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131023 Termination date: 20180118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |