CN101066804A - Circular granular sludge reactor - Google Patents
Circular granular sludge reactor Download PDFInfo
- Publication number
- CN101066804A CN101066804A CNA2007100140897A CN200710014089A CN101066804A CN 101066804 A CN101066804 A CN 101066804A CN A2007100140897 A CNA2007100140897 A CN A2007100140897A CN 200710014089 A CN200710014089 A CN 200710014089A CN 101066804 A CN101066804 A CN 101066804A
- Authority
- CN
- China
- Prior art keywords
- water
- pipe
- granular sludge
- biogas
- separator
- 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
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The present invention discloses one kind of circular granular sludge reactor with great load capacity, stable running, simple structure and other advantages. The circular granular sludge reactor has the structure including several anaerobic reactor tanks, each of which has a water distributor connected to the water inlet pipe and a sludge exhausting unit in the lower part, at least one layer of triphase separator with top vapor-water separator connected to the inner circulating pipe and methane lifting unit, an outer return pipe connected to the water inlet pipe, an outer circulating unit and a granular sludge circulating unit.
Description
Technical field
The present invention relates to a kind of water treatment anaerobic reactor, relate in particular to a kind of dependence internal recycle and the coefficient circular granular sludge reactor of outer circulation.
Background technology
Along with the develop rapidly of industry and the continuous increase of population, problems such as the energy, resource and environment are on the rise, and over nearly 30 years, it is more outstanding that shortage of energy sources becomes.Adopt traditional aerobic biological process for treating to handle waste water and will consume a large amount of energy, the energy consumption that developed country is used for wastewater treatment has accounted for about 1% of national total power consumption.The essence of waste water aerobic bioremediation is to utilize the consumption of electric energy to reach to improve the waste water quality to make it meet a kind of technical measures of water environment specification of quality.So the waste water aerobic biological treatment is the wastewater processing technology of energy-dissipating type.Countries in the world are third world countries especially, feel day by day constantly studying and exploring the novel wastewater processing technology of high-level efficiency less energy-consumption in order to solve the required heavy burden of paying a large amount of energy consumptions of environmental problem.In numerous biological process of wastewater treatment, people are familiar with the importance that adopts anaerobic biological treatment industrial treatment organic waste water and organic waste again, and attempt is a kind of alternative treatment process of anaerobic biological process as aerobe method.This not only can save the too high energy consumption of aerobe method, and anaerobic biological process can be converted into bioenergy to organism---biogas.Hence one can see that, and anaerobic biological process is the biological process of wastewater treatment of a kind of not only energy-conservation but also production capacity.Simultaneously because original anaerobic technique bacterial classification leakage is more serious, problems such as common water distribution manner exists all that water distribution is inhomogeneous, have the dead band in the reactor, the bacterial activity performance is insufficient, can often have an accident in the operational process, influence the processing power of anaerobic reactor.
Summary of the invention
Purpose of the present invention is exactly to influence problems such as its sewage treatment capacity in order to solve present anaerobic reactor fluctuation of service, provide a kind of have simple in structure, easy to use, duty ratio is higher, and floor space is little, the circular granular sludge reactor of advantages such as energy consumption is low, and is stable.
For achieving the above object, the present invention adopts following technical scheme:
A kind of circular granular sludge reactor, it has many load anaerobic reactor tank bodies, bottom is provided with water-distributing device and mud discharging device in it, water-distributing device is communicated with water inlet pipe, be provided with one deck triphase separator at least in described many load anaerobic reactor tank bodies, its top is provided with steam separator, and it is connected with the biogas-lift device with inner circulating tube, the outside top of many load anaerobic reactor tank bodies is communicated with water inlet pipe by the external reflux pipe, also is provided with external circulating device and granule sludge circulation device simultaneously.
Described external circulating device comprises the rising pipe II that is communicated with many load anaerobic reactor tank body outside top, and its lower end is communicated with separator for mud and water, and separator for mud and water then is communicated with rising pipe I and water inlet pipe respectively.
Described granule sludge circulation device is a separator for mud and water.
Described water-distributing device is a water distributor.
Described mud discharging device is a shore pipe.
Described triphase separator has two-layer, is respectively the first layer triphase separator and second layer triphase separator.
Described biogas-lift device is that an end is communicated with steam separator, the biogas-lift pipe of the other end and triphase separator position corresponding, and wherein biogas-lift pipe I end is positioned at the first layer triphase separator, and biogas-lift pipe II end is positioned at second layer triphase separator place.
Described inner circulating tube end is provided with the spiral water distributor.
Described steam separator top is provided with the biogas vent pipe.
Working process of the present invention is: water inlet enters reactor uniformly by water distribution system, and the mud mixture that water inlet and inner circulating tube descend makes internal flow become the fast rotational suspended state through spiral water distributor secondary distribution, and the organism processing efficiency improves.Liquid is retained in the reactor most of bacterial classification by triphase separator, and biogas and part of contaminated water, bacterial classification enter steam separator by the biogas upcast, and biogas is discharged from the top, and sewage and part bacterial classification then enter into reactor bottom by downtake.The part effluent recycling is to reactor bottom simultaneously, and the part water outlet makes effusive bacterial classification come back to anaerobic reactor through separator for mud and water, and sewage then enters the next stage treatment process.Make under the upflow velocity of high water and gas into that water and granule sludge keep good admixture, system can reach higher load.The maximum characteristics of this reactor are that duty ratio is higher, and floor space is little, and energy consumption is low, and is stable.
The maximum characteristics of this reactor are that duty ratio is higher, and floor space is little, and energy consumption is low, and is stable.The volumetric loading of reactor is not 5～8kg/m before improving
3.d, improving afterwards, volumetric loading can reach 30～40kg/m
3.d; The upper reaches speed that outer circulation need provide before not improving is 8～12m/h; Outer circulation only need provide the upper reaches speed of 3～5m/h after improving, and energy consumption reduces by 30%～40%; Biogas output in the unit volume can reach original 3～5 times.But in the reactor granules mud prolonged preservation reactor of the present invention, prevent that bacterial classification runs off, bacterial classification can be sold simultaneously.
The invention has the beneficial effects as follows:
1, by internal recycle, outer circulation, sewage backflow, the bacterial classification multiple mode that refluxes, muddy water good mixing effect, processing efficiency height.
2, adopt novel secondary spiral water distributor, help carbonated drink separation, prevent the obstruction of water distribution pipe.
3, adopt separator for mud and water to prevent that as far as possible bacterial classification runs off, and has optimized effluent quality simultaneously.
4, triphase separator 14 is different with the water yield, water quality with 15, and structure changes to some extent.
5, traditional anaerobic reactor does not add the mud return-flow system, and the utilization of sewage backflow system is also insufficient, except causing bacterial classification loss seriously.Relatively harmonic(-)mean is about 70% for the clearance of pollutent, and at many load anaerobic reactor system's adding mud return-flow systems and sewage external circulating system, the clearance of system can fully keep anaerobic grain sludge, and move more stable on average more than 85%.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a spiral water distributor vertical view.
Wherein, 1 water inlet pipe, 2 shore pipes, 3 water distributors, 4 inner circulating tubes, 5 external reflux pipes, 6 biogas-lift pipe I, 7 biogas-lift pipe II, 8 steam separators, 9 biogas vent pipes, the anaerobic reactor of load more than 10 tank body, 11 rising pipe I, 12 separator for mud and water, 13 spiral water distributors, 14 the first layer triphase separators, 15 second layer triphase separators, 16 rising pipe II.
Embodiment
The invention will be further described below in conjunction with accompanying drawing and embodiment.
Among Fig. 1, the bottom is provided with water distributor 3 and shore pipe 2 in the anaerobic reactor tank body 10 of loading more, and water distributor 3 is communicated with water inlet pipe 1.Many load anaerobic reactor tank body 10 inner the first layer triphase separator 14 and second layer triphase separators 15, its top is provided with steam separator 8, and it is communicated with inner circulating tube 4, and inner circulating tube 4 ends are provided with spiral water distributor 13.Steam separator 8 is communicated with biogas-lift pipe I6 and biogas-lift pipe II7 one end respectively, and the other end of biogas-lift pipe I6 is positioned at the first layer triphase separator 14 places, and the other end of biogas-lift pipe II7 is positioned at second layer triphase separator 15 places.Steam separator 8 tops then are biogas vent pipe 9.Outside top at many load anaerobic reactor tank bodies 10 is communicated with water inlet pipe 1 by external reflux pipe 5, outside top at many load anaerobic reactor tank bodies 10 is communicated with rising pipe II16 simultaneously, its lower end is communicated with separator for mud and water 12, and 12 of separator for mud and water are communicated with rising pipe I11 and water inlet pipe 1 respectively.
Water inlet enters first reaction chamber by pump by reactor bottom by water inlet pipe 1, be evenly distributed to inside reactor by water distributor 3, water inlet mixes with internal recycle water, the recirculation water in the external reflux pipe 5, the bacterial classification of bottom in the inner circulating tube 4 simultaneously, by secondary spiral water distributor 13, sewage curl attitude, improved the processing efficiency of reactor, violent disturbance makes the biogas of generation be easier to separate with mud.Most of organism contained in the waste water is converted into biogas here, and the biogas that is produced is separated by the first layer triphase separator 14, and biogas and part muddy water rise to steam separator 8 by biogas-lift pipe I 6.Second layer triphase separator 15 isolating biogas rise by biogas-lift pipe II 7.Sewage after the processing has often carried the part bacterial classification from rising pipe II 16 water outlets in the sewage, water outlet makes the bacterial classification of loss converge by water inlet pipe 1 and water inlet through separator for mud and water 12, and refluxing enters anaerobic reactor.Total water outlet is then discharged anaerobic reactor by rising pipe I 11.Separate biogas and discharge anaerobic reactor by the biogas vent pipe 9 at steam separator 8 tops, mud is discharged from the shore pipe 2 of bottom.
As certain starch factory sewage, the water yield is 1000m
3/ d adopts the carbon steel cylindrical tank, and anaerobism influent quality COD is 6000mg/L, and BOD is 4000mg/L, and water outlet COD is that clearance is about 86.7% about 800mg/L.
Claims (9)
1, a kind of circular granular sludge reactor, it has many load anaerobic reactor tank bodies (10), bottom is provided with water-distributing device and mud discharging device in it, water-distributing device is communicated with water inlet pipe (1), it is characterized in that: be provided with one deck triphase separator at least in described many load anaerobic reactor tank bodies (10), its top is provided with steam separator (8), it is connected with the biogas-lift device with inner circulating tube (4), the outside top of many load anaerobic reactor tank bodies (10) is communicated with water inlet pipe (1) by external reflux pipe (5), also is provided with external circulating device and granule sludge circulation device simultaneously.
2, circular granular sludge reactor according to claim 1, it is characterized in that: described external circulating device comprises the rising pipe II (16) that is communicated with many load anaerobic reactor tank body (10) outside top, its lower end is connected with the mud circulation device, and this device is communicated with rising pipe I (11) and water inlet pipe (1) respectively.
3, circular granular sludge reactor according to claim 1 is characterized in that: described granule sludge circulation device is separator for mud and water (12).
4, circular granular sludge reactor according to claim 1 is characterized in that: described water-distributing device is water distributor (3).
5, circular granular sludge reactor according to claim 1 is characterized in that: described mud discharging device is shore pipe (2).
6, circular granular sludge reactor according to claim 1 is characterized in that: described triphase separator has two-layer, is respectively the first layer triphase separator (14) and second layer triphase separator (15).
7, circular granular sludge reactor according to claim 1, it is characterized in that: described biogas-lift device is that an end is communicated with steam separator (8), the biogas-lift pipe of the other end and triphase separator position corresponding, wherein biogas-lift pipe I (6) end is positioned at the first layer triphase separator (14), and biogas-lift pipe II (7) end is positioned at second layer triphase separator (15) and locates.
8, circular granular sludge reactor according to claim 1 is characterized in that: described inner circulating tube (4) end is provided with spiral water distributor (13).
9, circular granular sludge reactor according to claim 1 is characterized in that: described steam separator (8) top is provided with biogas vent pipe (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100140897A CN100551845C (en) | 2007-04-03 | 2007-04-03 | Circular granular sludge reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100140897A CN100551845C (en) | 2007-04-03 | 2007-04-03 | Circular granular sludge reactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101066804A true CN101066804A (en) | 2007-11-07 |
| CN100551845C CN100551845C (en) | 2009-10-21 |
Family
ID=38879527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100140897A Expired - Fee Related CN100551845C (en) | 2007-04-03 | 2007-04-03 | Circular granular sludge reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100551845C (en) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101870518A (en) * | 2010-07-19 | 2010-10-27 | 江苏泽宇环境工程有限公司 | CAFT efficient anaerobe reactor for treating sewage |
| CN102040280A (en) * | 2010-12-10 | 2011-05-04 | 马翠忠 | Pulse ejection internal-circulation anaerobic reactor |
| CN102139955A (en) * | 2011-04-12 | 2011-08-03 | 山东建筑大学 | Multistage recirculation reactor for anaerobic sludge |
| CN102381759A (en) * | 2011-09-21 | 2012-03-21 | 山东省农业科学院农业资源与环境研究所 | Anaerobic reactor |
| CN102616928A (en) * | 2012-03-21 | 2012-08-01 | 天津科技大学 | Anaerobic fermentation reactor with efficient sedimentation backflow function |
| CN103153882A (en) * | 2010-09-27 | 2013-06-12 | 株式会社爱博 | Apparatus for methane fermentation treatment |
| CN103224288A (en) * | 2013-05-23 | 2013-07-31 | 哈尔滨工业大学 | Device for treating industrial wastewater by using composite double-circulation anaerobic reactor |
| CN103523916A (en) * | 2013-10-18 | 2014-01-22 | 东华大学 | Reinforced circulating efficient anaerobic bioreactor applicable to dyeing and finishing wastewater treatment |
| CN104129848A (en) * | 2014-07-02 | 2014-11-05 | 山东太平洋环保有限公司 | Cassava alcohol waste water mash anaerobic high-temperature fermentation cylinder water distributing system |
| CN105776528A (en) * | 2016-03-31 | 2016-07-20 | 山东中新环境工程有限公司 | Dual-reflux efficient anaerobic reaction device and wastewater treatment method |
| CN106045021A (en) * | 2016-06-08 | 2016-10-26 | 陈征宙 | MS-IC (Multiple Self-power reflux-aerobic Internal Circulation bioreactor), as well as system and method adopting same |
| CN106517674A (en) * | 2016-12-23 | 2017-03-22 | 嘉园环保有限公司 | Leachate swirling flow anaerobic reaction device |
| CN108455726A (en) * | 2018-04-09 | 2018-08-28 | 四川四通欧美环境工程有限公司 | A kind of double circulation anaerobic reactor |
| CN108640263A (en) * | 2018-04-12 | 2018-10-12 | 南宁绿智环保科技有限公司 | A kind of oxidation ditch and its working method with aerobic particle mud denitrification functions |
| CN109516553A (en) * | 2018-11-26 | 2019-03-26 | 上海泓济环保科技股份有限公司 | Efficient anaerobic denitrification organisms reactor |
| CN113387439A (en) * | 2021-05-17 | 2021-09-14 | 广西博世科环保科技股份有限公司 | Deep denitrification system device and denitrification process for high ammonia nitrogen wastewater |
| CN114409070A (en) * | 2022-01-28 | 2022-04-29 | 扬州大学 | One-gas dual-purpose double-circulation anaerobic reactor and method thereof |
| CN117125822A (en) * | 2023-10-19 | 2023-11-28 | 青岛鑫源环保集团有限公司 | Nitrate clarification plant is removed to drinking water |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE59609368D1 (en) * | 1996-05-22 | 2002-07-25 | Va Tech Wabag Schweiz Ag Winte | Process and reactor for anaerobic wastewater treatment in a sludge bed |
| CN2600438Y (en) * | 2003-01-01 | 2004-01-21 | 陈协 | Swirl auto-driven mass transfer anaerobic reactor |
| CN2732729Y (en) * | 2004-09-01 | 2005-10-12 | 帕克环保技术(上海)有限公司 | Internal-circulation anaerobic reactor |
| CN100415663C (en) * | 2005-06-09 | 2008-09-03 | 西安交通大学 | High-load self-circulating in vitro anaerobic granular sludge suspended bed reactor |
| CN201031176Y (en) * | 2007-04-03 | 2008-03-05 | 山东美泉环保科技有限公司 | Circulation type grain sludge reactor |
-
2007
- 2007-04-03 CN CNB2007100140897A patent/CN100551845C/en not_active Expired - Fee Related
Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101870518A (en) * | 2010-07-19 | 2010-10-27 | 江苏泽宇环境工程有限公司 | CAFT efficient anaerobe reactor for treating sewage |
| CN103153882B (en) * | 2010-09-27 | 2014-12-03 | 株式会社爱博 | Apparatus for methane fermentation treatment |
| CN103153882A (en) * | 2010-09-27 | 2013-06-12 | 株式会社爱博 | Apparatus for methane fermentation treatment |
| CN102040280A (en) * | 2010-12-10 | 2011-05-04 | 马翠忠 | Pulse ejection internal-circulation anaerobic reactor |
| CN102139955A (en) * | 2011-04-12 | 2011-08-03 | 山东建筑大学 | Multistage recirculation reactor for anaerobic sludge |
| CN102139955B (en) * | 2011-04-12 | 2012-08-29 | 山东建筑大学 | Multistage recirculation reactor for anaerobic sludge |
| CN102381759A (en) * | 2011-09-21 | 2012-03-21 | 山东省农业科学院农业资源与环境研究所 | Anaerobic reactor |
| CN102616928A (en) * | 2012-03-21 | 2012-08-01 | 天津科技大学 | Anaerobic fermentation reactor with efficient sedimentation backflow function |
| CN103224288A (en) * | 2013-05-23 | 2013-07-31 | 哈尔滨工业大学 | Device for treating industrial wastewater by using composite double-circulation anaerobic reactor |
| CN103224288B (en) * | 2013-05-23 | 2014-09-24 | 哈尔滨工业大学 | Device for treating industrial wastewater by using composite double-circulation anaerobic reactor |
| CN103523916B (en) * | 2013-10-18 | 2015-09-09 | 东华大学 | A kind of strengthening cycle efficient anaerobic bio-reactor being applicable to dyeing and finishing wastewater process |
| CN103523916A (en) * | 2013-10-18 | 2014-01-22 | 东华大学 | Reinforced circulating efficient anaerobic bioreactor applicable to dyeing and finishing wastewater treatment |
| CN104129848B (en) * | 2014-07-02 | 2016-01-20 | 山东太平洋环保有限公司 | Cassava alcohol waste water full wine with dregs anaerobic high temperature fermentor tank water distribution system |
| CN104129848A (en) * | 2014-07-02 | 2014-11-05 | 山东太平洋环保有限公司 | Cassava alcohol waste water mash anaerobic high-temperature fermentation cylinder water distributing system |
| CN105776528A (en) * | 2016-03-31 | 2016-07-20 | 山东中新环境工程有限公司 | Dual-reflux efficient anaerobic reaction device and wastewater treatment method |
| CN106045021A (en) * | 2016-06-08 | 2016-10-26 | 陈征宙 | MS-IC (Multiple Self-power reflux-aerobic Internal Circulation bioreactor), as well as system and method adopting same |
| CN106045021B (en) * | 2016-06-08 | 2018-02-02 | 陈征宙 | Ultromotivity backflow aerobic inner circulation bioreactor and its system, method |
| CN106517674A (en) * | 2016-12-23 | 2017-03-22 | 嘉园环保有限公司 | Leachate swirling flow anaerobic reaction device |
| CN108455726B (en) * | 2018-04-09 | 2021-02-12 | 四川四通欧美环境工程有限公司 | Double-circulation anaerobic reactor |
| CN108455726A (en) * | 2018-04-09 | 2018-08-28 | 四川四通欧美环境工程有限公司 | A kind of double circulation anaerobic reactor |
| CN108640263A (en) * | 2018-04-12 | 2018-10-12 | 南宁绿智环保科技有限公司 | A kind of oxidation ditch and its working method with aerobic particle mud denitrification functions |
| CN109516553A (en) * | 2018-11-26 | 2019-03-26 | 上海泓济环保科技股份有限公司 | Efficient anaerobic denitrification organisms reactor |
| CN113387439A (en) * | 2021-05-17 | 2021-09-14 | 广西博世科环保科技股份有限公司 | Deep denitrification system device and denitrification process for high ammonia nitrogen wastewater |
| CN114409070A (en) * | 2022-01-28 | 2022-04-29 | 扬州大学 | One-gas dual-purpose double-circulation anaerobic reactor and method thereof |
| CN114409070B (en) * | 2022-01-28 | 2023-11-21 | 扬州大学 | Dual-purpose one-gas double-circulation anaerobic reactor and method thereof |
| CN117125822A (en) * | 2023-10-19 | 2023-11-28 | 青岛鑫源环保集团有限公司 | Nitrate clarification plant is removed to drinking water |
| CN117125822B (en) * | 2023-10-19 | 2024-06-04 | 青岛鑫源环保集团有限公司 | Nitrate clarification plant is removed to drinking water |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100551845C (en) | 2009-10-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100551845C (en) | Circular granular sludge reactor | |
| CN201031176Y (en) | Circulation type grain sludge reactor | |
| CN100480197C (en) | Anaerobic inner circulating reflux type immobilization microorganism fluidized bed reactor | |
| CN101591064B (en) | Anaerobic built-in zero-valent iron reactor | |
| CN203582580U (en) | Multi-stage treatment anaerobic reactor capable of separating inorganic sludge | |
| CN101012084A (en) | Aerobic inner circulating reflux type immobilization microorganism fluidized bed reactor | |
| CN101058462A (en) | Multi-stage inner-circulation nitration-denitrification biological denitrogenation reactor | |
| CN103011402B (en) | Double-circulation anaerobic reactor | |
| CN103011404B (en) | Internal-mixing anaerobic reaction tank | |
| CN200955029Y (en) | Upstream-type multi-stage treatment anaerotic reactor | |
| CN204454736U (en) | A kind of high efficiency anaerobic reactor | |
| CN202688085U (en) | Anaerobic baffled reactor applicable to printing and dyeing wastewater treatment | |
| CN201737770U (en) | Microbial response system for waste water treatment and clean energy production at the same time | |
| CN201433134Y (en) | Improved UASB reactor | |
| CN100475716C (en) | Anaerobic bioreacto | |
| CN109336254B (en) | Novel anaerobic reactor for garbage leachate wastewater treatment | |
| CN101774688A (en) | Anaerobic reactor for treating high-concentration chemical industry sewage | |
| CN107973399B (en) | High-efficient three-phase separation system | |
| CN203007037U (en) | Internal mixing anaerobic reactor | |
| CN2791027Y (en) | Three-phase biological fluidized bed reactor for sewage treatment | |
| CN203065307U (en) | Three-stage ternary-cycle anaerobic reactor | |
| CN202208662U (en) | Up-flow type high-efficiency anaerobic contact reactor | |
| CN205367861U (en) | Biological mud reactor of tertiary two inner loop | |
| CN201049911Y (en) | Screw-type self-circulation biological reactor | |
| CN212334662U (en) | Wastewater treatment device based on photocatalysis principle |
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: 20091021 Termination date: 20150403 |
|
| EXPY | Termination of patent right or utility model |