CN101323485A - Self-generated dynamic membrane coupling corrosion battery-type sewage purification bed - Google Patents
Self-generated dynamic membrane coupling corrosion battery-type sewage purification bed Download PDFInfo
- Publication number
- CN101323485A CN101323485A CNA2008101386437A CN200810138643A CN101323485A CN 101323485 A CN101323485 A CN 101323485A CN A2008101386437 A CNA2008101386437 A CN A2008101386437A CN 200810138643 A CN200810138643 A CN 200810138643A CN 101323485 A CN101323485 A CN 101323485A
- Authority
- CN
- China
- Prior art keywords
- weighting material
- membrane module
- membrane
- self
- dynamic membrane
- 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
- 239000012528 membrane Substances 0.000 title claims abstract description 55
- 230000007797 corrosion Effects 0.000 title claims abstract description 32
- 238000005260 corrosion Methods 0.000 title claims abstract description 32
- 238000000746 purification Methods 0.000 title claims abstract description 15
- 230000008878 coupling Effects 0.000 title claims abstract description 11
- 238000010168 coupling process Methods 0.000 title claims abstract description 11
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 11
- 239000010865 sewage Substances 0.000 title abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000009826 distribution Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- -1 haydite Substances 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 239000000571 coke Substances 0.000 claims description 3
- 239000004567 concrete Substances 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 210000004027 cell Anatomy 0.000 claims 8
- 210000005056 cell body Anatomy 0.000 claims 4
- 230000000630 rising effect Effects 0.000 claims 2
- 239000004411 aluminium Substances 0.000 claims 1
- 239000010802 sludge Substances 0.000 abstract description 15
- 238000005273 aeration Methods 0.000 abstract description 14
- 239000000203 mixture Substances 0.000 abstract description 11
- 239000002245 particle Substances 0.000 abstract description 9
- 238000001179 sorption measurement Methods 0.000 abstract description 6
- 238000005345 coagulation Methods 0.000 abstract description 4
- 230000015271 coagulation Effects 0.000 abstract description 4
- 239000000945 filler Substances 0.000 description 8
- 239000003344 environmental pollutant Substances 0.000 description 7
- 231100000719 pollutant Toxicity 0.000 description 7
- 150000001768 cations Chemical class 0.000 description 5
- 238000000926 separation method Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 238000009285 membrane fouling Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 238000006213 oxygenation reaction Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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
- 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
- Water Treatment By Electricity Or Magnetism (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
本发明提供了一种自生动态膜耦合腐蚀电池式污水净化床，包括床体和膜组件，床体内通过布水板隔为左右两部分，左部设有进水管，右部设有出水管和膜组件，膜组件的内腔与出水管连接，床体内左部设有腐蚀电池和侧向曝气装置，腐蚀电池的上部开口、底部设有进水孔。膜组件的下部设置有底部曝气装置。本发明内置腐蚀电池，提高了污泥混合液的吸附混凝作用，使微小粒子含量较少，减轻了膜污染现象，延长了系统稳定运行时间，并且提高了出水水质。
The invention provides a self-generated dynamic membrane coupling corrosion battery type sewage purification bed, which includes a bed body and a membrane module. The bed body is divided into two parts by a water distribution plate, the left part is provided with a water inlet pipe, and the right part is provided with a water outlet pipe and Membrane module, the inner cavity of the membrane module is connected with the water outlet pipe, the left part of the bed body is equipped with a corrosion cell and a lateral aeration device, and the upper opening and the bottom of the corrosion cell are provided with water inlet holes. The lower part of the membrane module is provided with a bottom aeration device. The invention has a built-in corrosion battery, improves the adsorption and coagulation of the sludge mixture, reduces the content of tiny particles, reduces membrane pollution, prolongs the stable running time of the system, and improves the quality of effluent water.
Description
技术领域 technical field
本发明涉及用于污水处理的自生动态膜生物反应净化床，属于污水处理技术领域。The invention relates to a self-generated dynamic membrane biological reaction purification bed for sewage treatment, belonging to the technical field of sewage treatment.
背景技术 Background technique
自生动态膜生物反应器作为一种新型污水处理工艺，以膜组件取代二沉池，已经在污水处理、再生回用领域成为研究的热点。动态膜生物反应器具有高效的固液分离效率，出水水质优良，能维持高浓度的微生物量，使系统容积负荷提高、占地面积大幅缩小、剩余污泥产量显著降低、污泥处理费用减少，易实现自动控制，操作管理方便。并且膜组件的膜基材为滤布(如无纺布等)，使其造价大大减少。但是，由于污泥混合液中微小颗粒、胶体等物质极易堵塞膜孔，使得出水通量下降，造成膜污染，需要频繁反冲洗更换，提高了运行成本，影响了污水处理效果。As a new type of sewage treatment process, autogenous dynamic membrane bioreactor replaces the secondary settling tank with membrane modules, and has become a research hotspot in the field of sewage treatment and regeneration. The dynamic membrane bioreactor has high solid-liquid separation efficiency, excellent effluent quality, and can maintain a high concentration of microbial biomass, which increases the volume load of the system, greatly reduces the occupied area, significantly reduces the excess sludge production, and reduces the sludge treatment cost. Easy to realize automatic control, convenient operation and management. And the membrane substrate of the membrane module is filter cloth (such as non-woven fabric, etc.), so that its cost is greatly reduced. However, because tiny particles, colloids and other substances in the sludge mixture can easily block the membrane pores, the effluent flux will decrease, causing membrane fouling, requiring frequent backwashing and replacement, which increases the operating cost and affects the sewage treatment effect.
发明内容 Contents of the invention
本发明针对现有自生动态膜生物反应器技术存在的不足，提供一种能进一步提高处理效率、膜污染小、处理效果好的自生动态膜耦合腐蚀电池式污水净化床。The invention aims at the deficiencies in the existing self-generated dynamic membrane bioreactor technology, and provides a self-generated dynamic membrane coupling corrosion battery type sewage purification bed which can further improve the treatment efficiency, has low membrane pollution and good treatment effect.
本发明的自生动态膜耦合腐蚀电池式污水净化床采用下述技术方案：The self-generated dynamic membrane coupling corrosion battery type sewage purification bed of the present invention adopts the following technical scheme:
自生动态膜耦合腐蚀电池式污水净化床，包括床体和膜组件，床体内通过布水板隔为左右两部分，左部设有进水管，右部设有出水管和膜组件，膜组件的内腔与出水管连接，床体内左部设有腐蚀电池和侧向曝气装置，腐蚀电池的上部开口、底部设有进水孔。Self-generated dynamic membrane coupling corrosion battery type sewage purification bed, including bed body and membrane module, the bed body is divided into left and right parts by water distribution plate, the left part is equipped with water inlet pipe, the right part is equipped with water outlet pipe and membrane module, the membrane module The inner cavity is connected with the water outlet pipe, and the left part of the bed body is provided with a corrosion battery and a lateral aeration device, and the upper opening and the bottom of the corrosion battery are provided with water inlet holes.
膜组件的下部设置有底部曝气装置。The lower part of the membrane module is provided with a bottom aeration device.
腐蚀电池包括槽体、阳极填充物和阴极填充物，阳极填充物和阴极填充物混合后填充在槽体内，填充物占槽体高度的3/4，槽体底部设有进水孔，阳极填充物和阴极填充物的重量比为3∶2或7∶3。阳极填充物为铁屑和铝屑中的至少一种，阴极填充物为石墨、陶粒、炉渣、焦炭和砼体中的至少一种。The corrosion battery includes a tank body, an anode filler and a cathode filler. The anode filler and the cathode filler are mixed and filled in the tank body. The filler occupies 3/4 of the height of the tank body. There is a water inlet hole at the bottom of the tank body. The weight ratio of material and cathode filling is 3:2 or 7:3. The anode filling is at least one of iron filings and aluminum filings, and the cathode filling is at least one of graphite, ceramsite, slag, coke and concrete.
本发明在净化床中放置腐蚀电池，腐蚀电池发生电化学反应会产生铁离子或铝离子等阳离子，随腐蚀电池槽体中的污水溢流进入净化床中的污泥混合液。污水进入净化床后，经过腐蚀电池的氧化还原作用，产生的阳离子发挥吸附絮凝作用，降解污水中的一部分BOD、COD、氨氮等污染物，吸附污泥混合液中的微小粒子等污染物质，使污泥混合液中的微小颗粒含量减少。膜组件表面在较短时间内形成一层类似于微滤(或超滤)膜结构的动态膜，起到分离过滤作用，经过此层动态膜的分离过滤作用后，污水中的大部分污染物质可被分离去除掉。而由于阳离子的吸附絮凝作用使微小粒子含量减少，进入膜组件的空隙中造成膜堵塞(即膜污染现象)的微小粒子量就会减少。侧向曝气装置起到搅匀和充氧作用。底部曝气装置起到冲刷沉积在膜组件上污染物的作用。这样就减轻了膜组件的污染现象，延长了系统稳定运行时间，提高了出水质量。并且铁离子能够提高污泥混合液中微生物活性，也使出水水质提高。In the present invention, a corrosion battery is placed in the purification bed, and the electrochemical reaction of the corrosion battery produces cations such as iron ions or aluminum ions, which overflow into the sludge mixture in the purification bed along with the overflow of sewage in the corrosion battery tank. After the sewage enters the purification bed, after the oxidation-reduction effect of the corrosion cell, the cations produced play the role of adsorption and flocculation, degrade a part of pollutants such as BOD, COD, ammonia nitrogen in the sewage, and adsorb pollutants such as tiny particles in the sludge mixture, so that The content of tiny particles in the sludge mixture is reduced. A layer of dynamic membrane similar to microfiltration (or ultrafiltration) membrane structure is formed on the surface of the membrane module in a short period of time, which plays a role of separation and filtration. After the separation and filtration of this layer of dynamic membrane, most of the pollutants in the sewage can be removed by separation. However, due to the adsorption and flocculation of cations, the content of tiny particles is reduced, and the amount of tiny particles that enter the gaps of the membrane module and cause membrane clogging (that is, membrane fouling phenomenon) will decrease. The lateral aeration device plays the role of stirring and oxygenation. The bottom aeration device plays the role of flushing the pollutants deposited on the membrane modules. In this way, the pollution phenomenon of the membrane module is reduced, the stable operation time of the system is prolonged, and the quality of the effluent is improved. Moreover, iron ions can increase the microbial activity in the sludge mixture, and also improve the quality of the effluent.
本发明内置腐蚀电池，提高了污泥混合液的吸附混凝作用，使微小粒子含量较少，减轻了膜污染现象，延长了系统稳定运行时间，并且提高了出水水质。The invention has a built-in corrosion battery, improves the adsorption and coagulation of the sludge mixture, reduces the content of tiny particles, reduces membrane pollution, prolongs the stable running time of the system, and improves the quality of effluent water.
附图说明 Description of drawings
附图为本发明的结构示意图。Accompanying drawing is the structural representation of the present invention.
其中：1、进水管，2、腐蚀电池，3、侧向曝气管，4、布水板，5、膜组件，6、出水管，7、底部曝气管，8、床体，9、进水孔，10、PVC挡板，11、空气压缩机，12、阀门，13、阀门，14、排泥口，15、溢流口，16、排泥口。Among them: 1. Water inlet pipe, 2. Corrosion battery, 3. Lateral aeration pipe, 4. Water distribution plate, 5. Membrane module, 6. Outlet pipe, 7. Bottom aeration pipe, 8. Bed body, 9. Water inlet, 10, PVC baffle, 11, air compressor, 12, valve, 13, valve, 14, mud discharge port, 15, overflow port, 16, mud discharge port.
具体实施方式 Detailed ways
如附图所示，本发明的自生动态膜耦合腐蚀电池式污水净化床包括床体8和膜组件5，床体8内通过布水板4隔为左右两部分，左部下方设有进水管1和侧向曝气管3，右部设有出水管6和两组由无纺布材料制成的膜组件5，每组膜组件的内腔均与出水管6连接。本发明的创新之处在于在床体内左部设有腐蚀电池2，腐蚀电池2的槽体由床体8的一侧和PVC挡板10围成，上部开口，底板上设有进水孔9，挡板10的上端设有溢流口15，底板的下方在床体侧面设有排泥口16。填充物占槽体高度的3/4，阳极填充物为铁屑和铝屑中的至少一种，阴极填充物为石墨、陶粒、炉渣、焦炭和砼体中的至少一种。在每组膜组件的下部设置有底部曝气管7。底部曝气管7通过阀门13与空气压缩机11连接，侧向曝气管3通过阀门12与空气压缩机11连接。As shown in the accompanying drawings, the self-generating dynamic membrane coupling corrosion battery type sewage purification bed of the present invention includes a bed body 8 and a membrane module 5, and the bed body 8 is divided into left and right parts by a water distribution plate 4, and a water inlet pipe is provided under the left part 1 and the lateral aeration pipe 3, the right part is provided with an
废水由进水管1进入，先进入腐蚀电池2，再经布水板4溢流进入污泥混合液，腐蚀电池2氧化还原作用生成的阳离子随进水经布水板4亦溢流进入污泥混合液中。由于阳离子的吸附混凝作用和污泥混合液的新陈代谢作用，去除部分COD，BOD，氨氮和微小颗粒等污染物质。最后经过膜组件5上形成的动态膜过滤掉大部分污染物，使出水达标。出水通过重力自流由出水管6流出。出水管6与膜组件5基本平齐，利用床体8内水面与出水管6之间的高度差，重力自流出水。侧向曝气管3起搅匀和充氧作用，当膜组件5受到污染时，关闭阀门12，开启阀门13，对膜组件5进行水利冲刷，使污染物脱落，然后关闭阀门13，重新开启侧向曝气管3的阀门12，装置正常运行。剩余污泥由床体8右侧底部的排泥口14排出。The waste water enters through the water inlet pipe 1, first enters the corrosion cell 2, and then overflows into the sludge mixture through the water distribution plate 4, and the cations generated by the redox action of the corrosion cell 2 also overflow into the sludge through the water distribution plate 4 along with the incoming water in the mixture. Due to the adsorption coagulation of cations and the metabolism of the sludge mixture, some pollutants such as COD, BOD, ammonia nitrogen and tiny particles are removed. Finally, most of the pollutants are filtered out through the dynamic membrane formed on the membrane module 5, so that the effluent reaches the standard. Outlet water flows out by
本发明具有以下优点：The present invention has the following advantages:
(1)本发明采用无纺布作为膜组件材料，减少造价；采用重力自流出水，减少能耗；采用一体式膜生物反应器结构，减少占地面积，便于管理。(1) The present invention uses non-woven fabric as the membrane module material to reduce the cost; adopts gravity self-flowing water to reduce energy consumption; adopts an integrated membrane bioreactor structure to reduce the occupied area and facilitate management.
(2)本发明内置腐蚀电池体系，提高污泥混合液的吸附混凝作用，使微小粒子含量较少，减轻膜污染现象，延长稳定运行时间，并且提高出水水质。(2) The present invention has a built-in corrosion battery system, which improves the adsorption and coagulation of the sludge mixture, reduces the content of tiny particles, reduces membrane pollution, prolongs the stable running time, and improves the quality of effluent.
(3)腐蚀电池体系中的铁屑、铝屑、废石墨等为工业生产中的废弃物，实现了以废治废。(3) The iron filings, aluminum filings, and waste graphite in the corrosion battery system are wastes in industrial production, which realizes the treatment of waste by waste.
Claims (5)
- One kind self-forming dynamic membrane coupling corrosion cell type effluent purification bed, comprise a body and membrane module, be divided into left and right sides two portions by water distribution board in the bed body, left part is provided with water inlet pipe, right part is provided with rising pipe and membrane module, the inner chamber of membrane module is connected with rising pipe, it is characterized in that: left part is provided with corrosion cell and side direction aerating apparatus in the bed body, and upper opening, the bottom of corrosion cell are provided with the prosopyle.
- 2. described self-forming dynamic membrane coupling corrosion cell type effluent purification bed according to claim 1, it is characterized in that: the bottom of described membrane module is provided with the bottom aerating apparatus.
- 3. described self-forming dynamic membrane coupling corrosion cell type effluent purification bed according to claim 1, it is characterized in that: described corrosion cell comprises cell body, anode weighting material and negative electrode weighting material, anode weighting material and negative electrode weighting material are filled in the cell body after mixing, weighting material accounts for 3/4 of cell body height, the cell body bottom is provided with the prosopyle, and the weight ratio of anode weighting material and negative electrode weighting material is 3: 2 or 7: 3.
- 4. described self-forming dynamic membrane coupling corrosion cell type effluent purification bed according to claim 3, it is characterized in that: described anode weighting material is at least a in iron filings and the aluminium bits,
- 5. described self-forming dynamic membrane coupling corrosion cell type effluent purification bed according to claim 3, it is characterized in that: described negative electrode weighting material is at least a in graphite, haydite, slag, coke and the concrete body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101386437A CN101323485A (en) | 2008-07-25 | 2008-07-25 | Self-generated dynamic membrane coupling corrosion battery-type sewage purification bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101386437A CN101323485A (en) | 2008-07-25 | 2008-07-25 | Self-generated dynamic membrane coupling corrosion battery-type sewage purification bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101323485A true CN101323485A (en) | 2008-12-17 |
Family
ID=40187216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101386437A Pending CN101323485A (en) | 2008-07-25 | 2008-07-25 | Self-generated dynamic membrane coupling corrosion battery-type sewage purification bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101323485A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011079413A1 (en) * | 2009-12-30 | 2011-07-07 | General Electric Company | Non-woven membrane bioreactor and its fouling control method |
| CN102452717A (en) * | 2010-10-20 | 2012-05-16 | 上海工程技术大学 | Non-woven fabric floc dynamic membrane bioreactor for sewage treatment |
| CN109250794A (en) * | 2017-07-15 | 2019-01-22 | 大桂环境科技股份有限公司 | Fluorine-containing wastewater treatment system |
-
2008
- 2008-07-25 CN CNA2008101386437A patent/CN101323485A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011079413A1 (en) * | 2009-12-30 | 2011-07-07 | General Electric Company | Non-woven membrane bioreactor and its fouling control method |
| CN102452717A (en) * | 2010-10-20 | 2012-05-16 | 上海工程技术大学 | Non-woven fabric floc dynamic membrane bioreactor for sewage treatment |
| CN109250794A (en) * | 2017-07-15 | 2019-01-22 | 大桂环境科技股份有限公司 | Fluorine-containing wastewater treatment system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101844844B (en) | Device for treating high-concentration electroplating wastewater and application thereof | |
| CN102553450B (en) | A Method for Preventing Separation MBR Flat Membrane Fouling | |
| CN102503044B (en) | Recycling system for treating community wastewater through combining membrane bioreactor and constructed wetland | |
| CN101759324A (en) | Biological filter-ceramic membrane biological reactor device and water purifying application method thereof | |
| CN101205109A (en) | Apparatus for treating chemical fiber waste water by anaerobic method | |
| CN204162570U (en) | A kind of light electrolysis/aerobic/anaerobic/membrane filtration treatment unit | |
| CN1792871A (en) | Single-stage inner circulating aerating biological filtering tank | |
| CN201598221U (en) | Biological filter - ceramic membrane bioreactor device | |
| CN101357814B (en) | Linkage processing method and apparatus of circulatory flow multiplex biochemistry and filtrating | |
| CN202988891U (en) | Printing ink wastewater treatment system | |
| CN202046964U (en) | High-efficiency sewage treating device | |
| CN101323485A (en) | Self-generated dynamic membrane coupling corrosion battery-type sewage purification bed | |
| CN202322563U (en) | Membrane bioreactor and constructed wetland combined treatment system for recycling residential quarter sewage | |
| CN210945262U (en) | Cosmetic production wastewater treatment system | |
| CN201154935Y (en) | Chemical fabrics waste water treatment plant | |
| CN101391833A (en) | Filter tank type membrane bioreactor | |
| CN111747529A (en) | Airlift Circulation Membrane Bioreactor System and Sewage Treatment Method | |
| CN107162313A (en) | A kind of integral type river course high-efficiency water purifying treatment device | |
| CN203033860U (en) | Micro-aerobic expansion particle sludge bed- steel slag biological aerated filter sewage treatment system | |
| CN201317703Y (en) | Biological aerated filter used for printing and dyeing wastewater advanced processing device | |
| CN216972119U (en) | Black and odorous water biochemical treatment device | |
| CN215208965U (en) | Dense medium magnetic coagulation high-efficiency integrated shale gas extraction water purification device | |
| CN1246233C (en) | Vertical deflector combined Filtration type dephosphorization and nitrogen rejection facility | |
| CN205575883U (en) | Domestic sewage treatment device | |
| CN213295093U (en) | High-efficiency sewage purification biochemical pool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081217 |