CN102674545A - Expanded granular sludge bed (EGSB) reactor with air-lift inner loop and micro power hydraulic outer loop - Google Patents

Expanded granular sludge bed (EGSB) reactor with air-lift inner loop and micro power hydraulic outer loop Download PDF

Info

Publication number
CN102674545A
CN102674545A CN2012101671199A CN201210167119A CN102674545A CN 102674545 A CN102674545 A CN 102674545A CN 2012101671199 A CN2012101671199 A CN 2012101671199A CN 201210167119 A CN201210167119 A CN 201210167119A CN 102674545 A CN102674545 A CN 102674545A
Authority
CN
China
Prior art keywords
reactor
reactor drum
circulation
egsb
water
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
CN2012101671199A
Other languages
Chinese (zh)
Inventor
徐富
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.)
SUZHOU SUSHUI ENVIRONMENTAL ENGINEERING CO LTD
Original Assignee
SUZHOU SUSHUI ENVIRONMENTAL ENGINEERING CO LTD
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 SUZHOU SUSHUI ENVIRONMENTAL ENGINEERING CO LTD filed Critical SUZHOU SUSHUI ENVIRONMENTAL ENGINEERING CO LTD
Priority to CN2012101671199A priority Critical patent/CN102674545A/en
Publication of CN102674545A publication Critical patent/CN102674545A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/30Fuel from waste, e.g. synthetic alcohol or diesel

Abstract

The invention discloses an expanded granular sludge bed (EGSB) reactor with an air-lift inner loop and a micro power hydraulic outer loop. The EGSB reactor comprises a reactor body, a water distribution device, triphase separators, an effluent collecting device and a methane circulating device. The EGSB reactor is characterized in that a first anaerobic reaction chamber and a second anaerobic reaction chamber are arranged in the reactor from bottom to top, a lower triphase separator is disposed at the top of the first anaerobic reaction chamber, an upper triphase separator is disposed at the top of the second anaerobic reaction chamber, a pump water inlet pipe is connected to the effluent collecting device outside the reactor, the pump water inlet pipe is used for a portion of water to back flow to the bottom of the reactor, a reflux pump and valve are installed on the pump water inlet pipe, the reflux pump has a low lift and a large flow and provides motive power, and the valve is used for controlling the flow. According to the expanded granular sludge bed (EGSB) reactor with the air-lift inner loop and the micro power hydraulic outer loop, the motive power consumption is extremely small during operation, the motive power consumption is about 10% to 30% of that of traditional reactors, and the motive power consumption is decreased by 70% to 90%.

Description

EGSB reactor drum with gas stripping type internal recycle and the outer circulation of microkinetic waterpower
?
Technical field
the present invention relates to a kind of environmental protection equipment, in particular to a kind of anaerobic biological reactor, and particularly a kind of EGSB reactor drum with gas stripping type internal recycle and the outer circulation of microkinetic waterpower.
?
Background technology
are present; Anaerobic grain sludge expanded bed reactor (expanded granular sludge blanket reactor; Be called for short EGSB) refer to that gas, liquid, solid three-phase separation area by the mud district of bottom and middle and upper part is combined into one; Make waste water in reactor drum, have higher upflow velocity through backflow and structure design, the inside reactor granule sludge is in the organic matter degradation high tower anaerobic device of swelling state.The EGSB reactor drum is as a kind of follow-on UASB reactor drum; Though closely similar at aspects such as structure formation, mud form and UASB reactor drum, its working operating mode and UASB are completely different, higher upflow velocity makes the granular mud bed swelling state that is in; Can not only making into, water fully contacts with granule sludge; Improve mass-transfer efficiency, and help matrix and diffusion, the transmission of meta-bolites inside and outside granule sludge, guaranteed reactor drum normally operation under higher volumetric loading condition.
traditionally, EGSB adopts water outlet behind settling tank, to be back to the EGSB reactor drum again, but the lift that needs like this to promote is high, the backflow energy consumption is big, and is uneconomical.
?
Summary of the invention
problem to be solved of the present invention is to overcome the problem of handling the industrial organic waste water complex process equipment in the prior art; A kind of have gas stripping type internal recycle and the outer circulation of microkinetic waterpower are provided, the comparatively economic EGSB reactor drum that power consumption is little.
are in order to solve the problems of the prior art; Technical scheme provided by the invention is: a kind of EGSB reactor drum with gas stripping type internal recycle and the outer circulation of microkinetic waterpower; Comprise reactor drum, water distributor, triphase separator, effluent collection device and biogas circulation device; It is characterized in that; Be provided with the first anaerobic reaction chamber and the second anaerobic reaction chamber from the bottom up at inside reactor, top, the said first anaerobic reaction chamber is provided with down triphase separator, and top, the said second anaerobic reaction chamber is provided with triphase separator; Be connected with the pump water inlet pipe that a part of water of confession is back to reactor bottom in the outside effluent collection device of reactor drum, the backflow water pump of the low lift and large flow rate that power is provided and the valve of dominant discharge are installed on the said pump water inlet pipe.
are preferred, and the said first anaerobic reaction chamber is the sludge bulking bed, and the said second anaerobic reaction chamber is precision processing district, i.e. low load region.
hydraulic load and aerogenesis duty ratio sludge bulking bed are much little, help the delay of mud, have SRT>The characteristic of HRT.Reactor drum has been realized " high loading and sludge loss are separated " through the setting of the different reaction chamber of upper and lower two dynamic processes, has both kept the high density of mud, has strengthened mass transfer process again, so organic loading is high.
are preferred; Triphase separator top is provided with effluent collection device on said; Said effluent collection device comprises the triangle effluent trough that is located at inside reactor; Said triangle effluent trough be connected be located at reactor drum outside go out bucket, said waste water after going out bucket and being connected with said pump water inlet pipe and supplying to handle flows into the rising pipe of subsequent disposal facility.
are preferred, and said triangle effluent trough is located at the reactor drum inner top, and the groove both sides are provided with V-notch weir at a certain distance, and weir head is not less than 25mm.
are preferred; The top is provided with the biogas circulation device outside reactor drum; Said biogas circulation device comprises biogas mud-water separation bag, and said biogas mud-water separation bag is connected with the biogas upcast that absorbs the biogas mud mixture, supplies the methane recovery pipe of isolating methane recovery utilization and supply isolating muddy water to be back to the muddy water downtake of reactor bottom.
are preferred, saidly go out the inner returning apparatus of bucket by the granule sludge withdrawer, and said granule sludge withdrawer is connected to said muddy water downtake through the granule sludge TFL is set.
are preferred, in the middle of said pump water inlet pipe and reactor drum, are provided with the mud swirler-.
Principle of work:
the present invention adopts the outer circulation of microkinetic waterpower, i.e. EGSB water outlet is to going out bucket, and the water pump through low lift and large flow rate is back to reactor drum again; Regulate the internal reflux amount through by-pass valve control; Come the surface load in the controlling reactor, and then the hydraulics of controlling reactor realizes outer circulation, this method power consumption is very little; Be traditional about 10% ~ 30%, power consumption descends 70 ~ 90%.This method is a microkinetic waterpower outer circulation type.
the present invention adopts unpowered gas to carry internal recycle; Be that the biogas that produces in the reactor drum is collected through triphase separator; The biogas-lift mixed solution is to separating bag, and after methane recovery was utilized, mixed solution was back to the bottom of reactor drum through the muddy water downtake.The biogas that this method produces with self does not need extraneous mechanical power promptly can realize internal recycle as promoting power, makes granule sludge be in swelling state in the biogas production process in the reactor drum.
EGSB reactor drum of the present invention adopts unpowered gas to put forward internal recycle and microkinetic waterpower outer circulation technology, for normal temperature and underload organic waste water, can increase the hydraulic load of reactor drum, guarantees treatment effect.For ultrahigh concentration or contain the waste water of Toxic matter, can dilute the substrate concn and the toxic substance concentration that get in the reactor drum, reduce its inhibition and murder by poisoning to mikrobe.The floc sludge that helps simultaneously in the reactor drum transforms to granule sludge, and small-particle mud transforms to macrobead mud.
EGSB reactor drum of the present invention adopts unpowered gas to put forward internal recycle and the outer circulation of microkinetic waterpower technology, unpowered gas carry internal recycle promptly with the biogas that self produces as promoting power, realize the internal recycle of mixed solution.Gas stripping inner circulation reactor is formed by stacking the first anaerobic reaction chamber and the second anaerobic reaction chamber, and a gas-solid-liquid triphase separator is respectively established at the top of each anaerobic reaction chamber, as the overlapping series connection up and down of two UASB reactor drums.Microkinetic waterpower outer circulation technology is promptly realized by the water pump pressurization, must consume a part of power; Reflux ratio generally is controlled between 100%~300%.The external reflux inlet point should be arranged on out on the bucket, in reactor drum, carries out water distribution with former water; Effluent recycling can adopt the backflow of directly pressurizeing of low lift in-line pump.
main purpose of the present invention is the liquid upflow velocity that improves in the reactor drum; The granule sludge bed is fully expanded, fully contact between sewage and the mikrobe, strengthen mass transfer effect; Can also avoid the generation EGSB reactor drum of interior dead angle of reactor drum and short stream to pass through effluent recycling; Make its ability, toxicant concentration in the water into is diluted to mikrobe is no longer had toxic action, can improve mixing of waste water and mud simultaneously with anti-shock loading.So the EGSB reactor drum can be handled the high concentrated organic wastewater that contains toxicant.To containing the waste water of high density fat or lipoid, can improve mixed effect through going out water cycle.During initial start-up, go out water cycle and make into water CODCr concentration dilution to 5g/L, this is to starting and formation of granule sludge is extremely favourable.
Working process:
waste water will be intake through water distributor and will be assigned to the bottom of whole reactor equably, and produce a uniform upflow velocity.Compare with the UASB reactor drum, the EGSB reactor drum is because aspect ratio is big, and its needed water distribution area can be less, adopted water cycle simultaneously, and the flow velocity in its water distribution aperture is big, guarantees even water distribution more easily.Following triphase separator and last triphase separator are divided into upper and lower two zones with entire reaction, and the bottom is the sludge bulking bed, and top is the precision processing district.When waste water passed through the granule sludge layer of anaerobic reactor bottom, most organism was degraded, and produces a large amount of biogas simultaneously; Process is the precision processing district on the waste water continuation entering top of triphase separator down, and the residual organic substances in the waste water can further be degraded by the anaerobic grain sludge on top, and the biogas of generation is by upper strata triphase separator separated and collected.Higher upflow velocity can make that mud is able to sufficient the contact with waste water in the reactor drum; And cause the expansion of granule sludge at the sludge bulking bed, and so just can guarantee the thorough mixing of mud and sewage, reduce the dead angle in the reactor drum; Waste water fully contacts with granule sludge; Strengthened mass transfer effect, produced a large amount of biogas, biogas, mud and waste water are separating in the triphase separator down; It mainly acts on is that water outlet, biogas, mud three-phase are effectively separated, and mud is effectively held in reactor drum stayed.Biogas gets into the mud-water separation bag because of having saturation water and not separating muddy water fully through the biogas upcast, and the three is eddy flow in the mud-water separation bag, and muddy water is back to the bottom of reactor drum through the biogas downtake, and isolating biogas is recycled through the methane recovery pipe.
triangle effluent trough is arranged on the top of EGSB reactor drum, guarantees the waste water after the collection and treatment equably as far as possible, and certain distance is established V-notch weir at interval in horizontal catchment tray.Even for guaranteeing water outlet, EGSB reactor drum of the present invention adopts the multi-channel water-out manners, and each groove both sides is provided with V-notch weir, the adjustability of considered V-notch weir height during design, and weir head is not less than 25mm.
are because the reactor drum upflow velocity is higher; In operational process, having a large amount of anaerobic grain sludges runs off; Therefore at the water outlet bucket device granule sludge withdrawer of reactor drum; Can effectively utilize the mode of backflow to carry out the mud recovery, be left to the muddy water downtake, be back to the bottom of reactor drum through the granule sludge return tube.To the subsequent disposal facility, in reflux pump, the water pump through low lift and large flow rate is back to reactor drum to a part of waste water to a waste water part after treatment again through the pump water inlet pipe through rising pipe; Regulate the internal reflux amount through unit; Gets into reaction zone through swirler-and come the surface load in the controlling reactor, and then the hydraulics of controlling reactor realizes outer circulation that this method power consumption is very little; Be traditional about 10% ~ 30%, power consumption descends 70 ~ 90%.
The advantage that the present invention has the EGSB reactor drum of gas stripping type internal recycle and the outer circulation of microkinetic waterpower is:
The two-stage triphase separator has been adopted in 1. the present invention; Be divided into the high load region of bottom and the low load region on top through structure formation; Organic loading and hydraulic load in two zones are all inequality, have guaranteed effective delay of granule sludge; Higher upflow velocity and backflow have promoted fully contacting of sewage and mud, have created condition for keeping sludge activity; The internal reflux amount confirms to have self-regulation according to the gas production rate (water inlet CODCr concentration) of lower floor's triphase separator, can save energy consumption.
2. EGSB reactor drum of the present invention adopts unpowered gas to put forward internal recycle and the outer circulation of microkinetic waterpower technology. and this method power consumption is very little, is traditional about 10% ~ 30%, and power consumption descends 70 ~ 90%
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further described:
Fig. 1 has the EGSB structure of reactor synoptic diagram of gas stripping type internal recycle and the outer circulation of microkinetic waterpower for the present invention;
wherein: 1, and water distributor; 2, reactor drum; 3, the sludge bulking bed; 4, following triphase separator; 5, the precision processing district; 6, last triphase separator; 7, triangle effluent trough, 8, the biogas upcast; 9, biogas mud-water separation bag; 10, the methane recovery pipe; 11, the muddy water downtake; 12, the granule sludge withdrawer; 13, the granule sludge return tube; 14, go out bucket; 15. rising pipe; 16, the pump water inlet pipe; 17, the backflow water pump; 18, by-pass valve control; 19, the mud swirler-.
?
Embodiment
further specify such scheme below in conjunction with specific embodiment.Should be understood that these embodiment are used to the present invention is described and are not limited to limit scope of the present invention.The implementation condition that adopts among the embodiment can be done further adjustment according to the condition of concrete producer, and not marked implementation condition is generally the condition in the normal experiment.
The EGSB reactor drum with gas stripping type internal recycle and the outer circulation of microkinetic waterpower of the preferred embodiment of the present invention that are as shown in Figure 1; Comprise reactor drum 2, water distributor 1, triphase separator, effluent collection device and biogas circulation device; Be provided with the first anaerobic reaction chamber and the second anaerobic reaction chamber from the bottom up in reactor drum 2 inside; Top, the said first anaerobic reaction chamber is provided with down triphase separator 4, and top, the said second anaerobic reaction chamber is provided with triphase separator 6; Be connected with the pump water inlet pipe 16 that a part of water of confession is back to reactor bottom in reactor drum 2 outside effluent collection device, the backflow water pump 17 of the low lift and large flow rate that power is provided and the by-pass valve control 18 of dominant discharge are installed on the said pump water inlet pipe 16.
said first anaerobic reaction chamber is a sludge bulking bed 3, and the said second anaerobic reaction chamber is precision processing district 5, i.e. low load region.
triphase separator 6 tops on said are provided with effluent collection device; Said effluent collection device comprises the triangle effluent trough 7 that is located at reactor drum 2 inside; Said triangle effluent trough 7 be connected be located at reactor drum 2 outside go out bucket 14, said waste water after going out bucket 14 and being connected with said pump water inlet pipe 16 and supplying to handle flows into the rising pipe 15 of subsequent disposal facility.
said triangle effluent trough 7 is located at reactor drum 2 inner tops, and the groove both sides are provided with V-notch weir at a certain distance, and weir head is not less than 25mm.
top is provided with the biogas circulation device outside reactor drum 2; Said biogas circulation device comprises biogas mud-water separation bag 9, and said biogas mud-water separation bag 9 is connected with biogas upcast 8, methane recovery 10 pipes that supply isolating methane recovery utilization that absorb the biogas mud mixture and supplies isolating muddy water to be back to the muddy water downtake 11 of reactor bottom.
are said to go out bucket 14 inner returning apparatus by granule sludge withdrawer 12, and said granule sludge withdrawer 12 is connected to said muddy water downtake 11 through granule sludge TFL 13 is set.
are at said pump water inlet pipe 16 and the reactor drum 2 middle mud swirler-s 19 that are provided with.
?
are certain, and the foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to let people can understand content of the present invention and implements according to this, can not limit protection scope of the present invention with this.The all spirit of main technical schemes is done according to the present invention equivalent transformation or modification all should be encompassed within protection scope of the present invention

Claims (7)

1. EGSB reactor drum with gas stripping type internal recycle and the outer circulation of microkinetic waterpower; Comprise reactor drum, water distributor, triphase separator, effluent collection device and biogas circulation device; It is characterized in that; Be provided with the first anaerobic reaction chamber and the second anaerobic reaction chamber from the bottom up at inside reactor, top, the said first anaerobic reaction chamber is provided with down triphase separator, and top, the said second anaerobic reaction chamber is provided with triphase separator; Be connected with the pump water inlet pipe that a part of water of confession is back to reactor bottom in the outside effluent collection device of reactor drum, the backflow water pump of the low lift and large flow rate that power is provided and the valve of dominant discharge are installed on the said pump water inlet pipe.
2. the EGSB reactor drum with gas stripping type internal recycle and the outer circulation of microkinetic waterpower according to claim 1 is characterized in that the said first anaerobic reaction chamber is the sludge bulking bed, and the said second anaerobic reaction chamber is precision processing district, i.e. low load region.
3. the EGSB reactor drum with gas stripping type internal recycle and the outer circulation of microkinetic waterpower according to claim 1; It is characterized in that; Triphase separator top is provided with effluent collection device on said; Said effluent collection device comprises the triangle effluent trough that is located at inside reactor, said triangle effluent trough be connected be located at reactor drum outside go out bucket, said waste water after going out bucket and being connected with said pump water inlet pipe and supplying to handle flows into the rising pipe of subsequent disposal facility.
4. the EGSB reactor drum with gas stripping type internal recycle and the outer circulation of microkinetic waterpower according to claim 3 is characterized in that said triangle effluent trough is located at the reactor drum inner top, and the groove both sides are provided with V-notch weir at a certain distance, and weir head is not less than 25mm.
5. the EGSB reactor drum with gas stripping type internal recycle and the outer circulation of microkinetic waterpower according to claim 1; It is characterized in that; The top is provided with the biogas circulation device outside reactor drum; Said biogas circulation device comprises biogas mud-water separation bag, and said biogas mud-water separation bag is connected with the biogas upcast that absorbs the biogas mud mixture, supplies the methane recovery pipe of isolating methane recovery utilization and supply isolating muddy water to be back to the muddy water downtake of reactor bottom.
6. according to claim 3 and 5 described EGSB reactor drums with gas stripping type internal recycle and the outer circulation of microkinetic waterpower; It is characterized in that; Saidly go out the inner returning apparatus of bucket by the granule sludge withdrawer, said granule sludge withdrawer is connected to said muddy water downtake through the granule sludge TFL is set.
7. the EGSB reactor drum with gas stripping type internal recycle and the outer circulation of microkinetic waterpower according to claim 1 is characterized in that, in the middle of said pump water inlet pipe and reactor drum, is provided with the mud swirler-.
CN2012101671199A 2012-05-28 2012-05-28 Expanded granular sludge bed (EGSB) reactor with air-lift inner loop and micro power hydraulic outer loop Pending CN102674545A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012101671199A CN102674545A (en) 2012-05-28 2012-05-28 Expanded granular sludge bed (EGSB) reactor with air-lift inner loop and micro power hydraulic outer loop

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012101671199A CN102674545A (en) 2012-05-28 2012-05-28 Expanded granular sludge bed (EGSB) reactor with air-lift inner loop and micro power hydraulic outer loop

Publications (1)

Publication Number Publication Date
CN102674545A true CN102674545A (en) 2012-09-19

Family

ID=46807187

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012101671199A Pending CN102674545A (en) 2012-05-28 2012-05-28 Expanded granular sludge bed (EGSB) reactor with air-lift inner loop and micro power hydraulic outer loop

Country Status (1)

Country Link
CN (1) CN102674545A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102863080A (en) * 2012-10-19 2013-01-09 广西绿晨环境工程有限公司 Bi-circulating multistage anaerobic reaction device
CN103523916A (en) * 2013-10-18 2014-01-22 东华大学 Reinforced circulating efficient anaerobic bioreactor applicable to dyeing and finishing wastewater treatment
CN105073645A (en) * 2012-12-24 2015-11-18 巴格知识产权有限公司 Hydrogen sulfide removal from anaerobic treatment
CN106830313A (en) * 2017-03-21 2017-06-13 宋茂成 Breeding wastewater efficient anaerobic handling process

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202156952U (en) * 2011-02-28 2012-03-07 谢昕 Byic anaerobic reactor
CN202610022U (en) * 2012-05-28 2012-12-19 苏州苏水环境工程有限公司 EGSB (Expanded Granular Sludge Bed) reactor with air lift type internal circulation and micro power hydraulic external circulation

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202156952U (en) * 2011-02-28 2012-03-07 谢昕 Byic anaerobic reactor
CN202610022U (en) * 2012-05-28 2012-12-19 苏州苏水环境工程有限公司 EGSB (Expanded Granular Sludge Bed) reactor with air lift type internal circulation and micro power hydraulic external circulation

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102863080A (en) * 2012-10-19 2013-01-09 广西绿晨环境工程有限公司 Bi-circulating multistage anaerobic reaction device
CN102863080B (en) * 2012-10-19 2014-09-03 广西绿晨环境工程有限公司 Bi-circulating multistage anaerobic reaction device
CN105073645A (en) * 2012-12-24 2015-11-18 巴格知识产权有限公司 Hydrogen sulfide removal from anaerobic treatment
CN103523916A (en) * 2013-10-18 2014-01-22 东华大学 Reinforced circulating efficient anaerobic bioreactor applicable to dyeing and finishing wastewater treatment
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
CN106830313A (en) * 2017-03-21 2017-06-13 宋茂成 Breeding wastewater efficient anaerobic handling process

Similar Documents

Publication Publication Date Title
CN201334394Y (en) Full-automatic internal and external circulation PEIC anaerobic reactor
CN102674545A (en) Expanded granular sludge bed (EGSB) reactor with air-lift inner loop and micro power hydraulic outer loop
CN202610022U (en) EGSB (Expanded Granular Sludge Bed) reactor with air lift type internal circulation and micro power hydraulic external circulation
CN103011402B (en) Double-circulation anaerobic reactor
WO2018218909A1 (en) Jet anaerobic bioreactor for treating high-concentration organic sewage
CN203007035U (en) Dual-circulation anaerobic reactor
CN100475716C (en) Anaerobic bioreacto
CN101880085A (en) Inner diversion type EGSB pulsing-circulating biogas stirring technique
CN103011404B (en) Internal-mixing anaerobic reaction tank
CN103332784A (en) Three-stage circulation aerobic reactor
CN201280477Y (en) HE-IC anaerobic reactor
CN203212380U (en) Anaerobic bioreactor for treating organic wastewater with high solid content
CN205367861U (en) Biological mud reactor of tertiary two inner loop
CN205035148U (en) Circulation anaerobism miniaturation reaction processing apparatus is led to heterogeneous intensive branch
CN201501814U (en) Solar anaerobic granular sludge circulating reactor
CN203284246U (en) Anaerobic reactor for landfill leachate treatment
CN201082875Y (en) Energy-saving impulse anaerobic reactor
CN204454736U (en) A kind of high efficiency anaerobic reactor
CN105036325A (en) Multi-phase reinforcement and guide type circular and anaerobic granulation reaction processing device
CN203007037U (en) Internal mixing anaerobic reactor
CN101597561A (en) A kind of biogas-lift reinforced anaerobic reactor and application thereof
CN202139226U (en) Methane anaerobic reactor
CN202054667U (en) Anaerobic expanded granular sludge bed water treatment device
CN201077804Y (en) Intrinsic cycle anaerobic flow equalizing double reaction tower
CN203807235U (en) Anaerobic treatment device for organic wastewater

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20120919

C12 Rejection of a patent application after its publication