CN1986453A - UASB biological pneumatic circulation stirring technique - Google Patents
UASB biological pneumatic circulation stirring technique Download PDFInfo
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- CN1986453A CN1986453A CNA2005100482344A CN200510048234A CN1986453A CN 1986453 A CN1986453 A CN 1986453A CN A2005100482344 A CNA2005100482344 A CN A2005100482344A CN 200510048234 A CN200510048234 A CN 200510048234A CN 1986453 A CN1986453 A CN 1986453A
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- uasb
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- 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
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The UASB biological pneumatic circulation stirring technique is used in UASB reactor to raise the floatability of granular sludge and raise the efficiency of reaction between waste water and sludge. The UASB system produces biological gas to stir granular sludge so as to make waste water and sludge contact fully resulting in high reaction efficiency. One back blowing and stirring gas distribution system is set in parallel with the sewage distributing system in the bottom of UASB reactor and biological gas is fed with compressor from the gas collecting cabinet to the gas distributor and jetted out as small bubbles, so as to form gas-water turbulent flow for stirring sludge inside the reactor.
Description
The technical field of the invention
The present technique invention belongs to the Appropriate technology that is applied in the anerobic sowage processing, stir the granule sludge layer of UASB with the biogas circulation of UASB system generation, improve UASB efficient anaerobic treatment system processing efficiency, also be applicable to common flow lifting type anaerobic reactor and anaerobic digestion device.
Background technology of the present invention
Upflowing high efficiency anaerobic reactor (UASB) is fit to handle high concentrated organic wastewater, less energy consumption, and the processing efficiency height, and can produce the biogas of recyclable utilization, obtain widespread use both domestic and external.How to improve reactor, improve reaction efficiency, the stabilizing treatment effect is the problem that is widely studied at present.
Ideal UASB system is that waste water enters reactor by the bottom water distributor, waterpower rise to flow and the gas effect of increasing that produces under, forms good stirring action, making intakes contacts with the granule sludge thorough mixing and carries out anaerobic digestion.But the UASB reactor often exists some defectives, and the bottom water distribution pipe stops up, the water distributor jet is chewed resistance and do not waited, and makes that water inlet is inhomogeneous, produces the dead angle, forms short stream; Organic loading is lower in, the reactor less when flooding velocity, cause gas production rate hour, waterpower rising power and aerogenesis deficiency are difficult to form stirring preferably, whole UASB system is in complete admixture, and the reactor section subregion is in steady state, can not contact with the nutrition in the sewage, can not grow well and upgrade, the waterpower space of reactor, particularly the granule sludge layer can not be fully used, thereby has reduced processing efficiency.
Content of the present invention
In order to overcome above-mentioned shortcoming, need to add whipping appts.
(1) if add mechanical stirring device, because the cutting action of mechanical force makes the granule sludge fragmentation, cause granule sludge to be difficult to form or a large amount of the loss, thereby destroyed UASB system core technology granule sludge, can not reach the treatment effect of efficient anaerobic.
(2) if introducing air stirs, can not destroy the granule sludge structure.But the adding of oxygen destroys the anaerobic environment of reactor on the one hand, causes the disadvantageous growing environment of granule sludge, thereby makes active decline, even dead; Oxygen mixes blast easily with methane gas on the other hand, causes the accident.
(3) if rare gas elementes such as employing nitrogen stir, though can avoid above-mentioned two kinds of situations, the cost height is unfavorable for industrial application; Rare gas element mixes with the biogas of generation, increases cost; In addition, biogas can be used as the energy recovery utilization, and the introducing of rare gas element makes the biogas component that variation take place, and is difficult to recycle.
Comprehensively above-mentioned, the biogas that self produces of the utilizing UASB biogas recirculation unit of the present invention stirring that circulates, do not destroy the granule sludge structure, do not influence its activity, do not change the aerogenesis component, do not influence the recycling of biogas, eliminate short stream, dead angle problem effectively, waste water is fully contacted with granule sludge, improve reaction efficiency 20%.
The technical scheme that the utility model adopted is: with waste water distributor system one cover blowback is set side by side in the UASB bottom again and stirs distribution device, biogas is sent into distribution device by the compressed machine of gas collection cabinet, distribution device is cut into tiny bubble with gas, evenly ejection, form the air water turbulent flow in the UASB bottom, play stirring action, small bubbles form big air mass with the new gas accumulation that produces under buoyancy, air mass rises in reactor, make reactor endoparticle mud be in suspended state, waste water slowly rises by the slit of granule sludge, and with the abundant contact reacts of granule sludge.
UASB biogas whipping appts of the present utility model utilizes the biogas of the generation of UASB system to stir, and need not introduce adding rare gas element, and cost is low, and does not influence the recycling of biogas.The even stirring of biogas makes granule sludge be in suspended state simultaneously, helps waste water and fully contacts with microorganism, improves reaction efficiency.
Description of drawings
Invention further specifies to present technique below in conjunction with drawings and Examples.
Among Fig. 1, a part of biogas is by gas transmission pipeline (1) in the gas holder, pass through compressor (3) pressurization again, be input in the pipeline of UASB reactor bottom, waste water also enters the UASB reactor by liquid conducting pipes (2) simultaneously, waste water fully contacts with granule sludge under the stirring action of biogas, produces new biogas.The stirring biogas of input and the new biogas that produces rise gradually, by mud bed (5), suspended sludge layer (6), separate with liquid, granule sludge by triphase separator (7), be collected in gas holder (4) by airway (8), part biological gas carries out recirculation.
Among Fig. 2, biogas enters gas distribution pipeline (1) and enters UASB bottom gas distribution pipeline (4), is provided with micropore (3) around the pipeline, and biogas enters reactor from micropore; Waste water enters UASB bottom pipe (6) by pipeline (2), and the micropore (5) from pipeline (6) enters reactor.
The specific embodiment of the present invention
Embodiment 1
For orthogonal UASB reactor, biology makes gas enter reactor by compressor in the gas collection cabinet of UASB system, can the gas distribution pipeline be set in its bottom, and is alternate with water distribution pipe, can increase qi-emitting hole on four angles.The effuser at triphase separator top is wanted suitable overstriking simultaneously, adds the biogas that stirs because promptly there is the biogas of generation to have again.According to the situation of granule sludge layer, can stir by the continous-stable gas distribution, also can the intermittent type pulse stir.
Embodiment 2
For the UASB reactor of circle, biogas makes gas enter reactor by compressor in the gas collection cabinet of UASB system, in its bottom concentric round gas distribution pipe road is set.The effuser at triphase separator top is wanted suitable overstriking simultaneously, adds the biogas that stirs because promptly there is the biogas of generation to have again.According to the situation of granule sludge layer, can stir by the continous-stable gas distribution, also can the intermittent type pulse stir.
Embodiment 3
Less when the waste water water yield, organic loading is low in the UASB reactor, produces biogas more after a little while, can suitably regulate compressor and strengthen the amount that stirs biogas, promotes stirring action.When the waste water water yield is moderate, the size of adjustments of gas force (forcing) pump as required.When the waste water water yield is bigger, organic loading height in the UASB reactor produces when biogas is more to be enough to stir voluntarily, can stop that biogas stirs or intermittent type stirs.
Embodiment 4
Unreasonable for existing design, produce dead angle or the short reactor that flows, can the biogas aerating apparatus be set to transforming at reactor, improve UASB reactor granules thing mud state, make it that suspension well be arranged, effectively prevent dead angle or short stream.
Claims (3)
1.UASB biological pneumatic circulation stirring technique is provided with the gas distribution stirring system at the UASB reactor bottom, makes waste water and granule sludge thorough mixing to improve reaction efficiency.It is characterized in that: the biogas that adopts the UASB system to produce stirs through recycle pump, does not introduce adding gas; UASB bottom gas pipeline adopts microporous aeration device, biogas is cut into tiny bubble, form the gas-liquid-solid three-phase turbulent flow with water body and granule sludge, small bubbles form than air pocket with the bubbling polymerization of new generation again, produce big lift, thereby in uphill process, form agitaion.
2. UASB biogas whipping appts according to claim 1 is characterized in that: the biogas that adopts UASB self to produce stirs, and does not introduce adding gas; At the alternate gas distribution system that is provided with in UASB bottom with water distribution system.
3. UASB biogas stirring technique according to claim 1, the stirring that circulates of the biogas of utilizing UASB self to produce, do not destroy the granule sludge structure, do not influence its activity, do not change the aerogenesis component, do not influence the recycling of biogas, eliminate short stream, dead angle problem effectively, waste water is fully contacted with granule sludge, improve reaction efficiency 20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100482344A CN1986453A (en) | 2005-12-24 | 2005-12-24 | UASB biological pneumatic circulation stirring technique |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100482344A CN1986453A (en) | 2005-12-24 | 2005-12-24 | UASB biological pneumatic circulation stirring technique |
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| CN1986453A true CN1986453A (en) | 2007-06-27 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103588294A (en) * | 2013-10-28 | 2014-02-19 | 沈阳建筑大学 | Bypass-type constant-temperature internal-circulation anaerobic sludge bed reactor |
| CN104261558A (en) * | 2014-10-21 | 2015-01-07 | 华新水泥股份有限公司 | Internal circulation type anaerobic fermentation device for waste extruded liquid |
| CN104671406A (en) * | 2015-02-15 | 2015-06-03 | 清华大学 | Method for cultivating gas self-circulation enhanced short-distance denitrification granular sludge |
| CN105692881A (en) * | 2014-11-27 | 2016-06-22 | 李彦民 | Aerobic granular sludge reactor |
| CN105712476A (en) * | 2016-01-29 | 2016-06-29 | 北京交通大学 | Gas circulating stirring type anaerobic culture domestication device and method |
| CN106745708A (en) * | 2017-01-24 | 2017-05-31 | 河海大学 | A kind of compound type sludge bed reactor and its application |
| CN108249563A (en) * | 2016-12-28 | 2018-07-06 | 云南师范大学 | A kind of ciculation fluidized high efficiency anaerobic reactor |
| CN108911125A (en) * | 2018-07-18 | 2018-11-30 | 苏州清控环保科技有限公司 | A kind of novel upflow anaerobic sludge blanket reactor |
| WO2018218909A1 (en) * | 2017-05-27 | 2018-12-06 | 华南理工大学 | Jet anaerobic bioreactor for treating high-concentration organic sewage |
| CN111204860A (en) * | 2020-02-18 | 2020-05-29 | 广西广宇水资源技术开发有限公司 | Random pendulum fluid stirring anaerobic treatment device and process |
| CN111363679A (en) * | 2018-12-26 | 2020-07-03 | 浙江大学 | Method for stimulating large-scale secretion of exosomes by cells |
| CN111908525A (en) * | 2020-08-04 | 2020-11-10 | 新路国际环境工程有限公司 | Sewage adds medicine processing system |
| CN112759067A (en) * | 2021-02-03 | 2021-05-07 | 昆明理工大学 | Method and device for electromagnetic enhanced biological treatment of organic wastewater |
-
2005
- 2005-12-24 CN CNA2005100482344A patent/CN1986453A/en active Pending
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103588294A (en) * | 2013-10-28 | 2014-02-19 | 沈阳建筑大学 | Bypass-type constant-temperature internal-circulation anaerobic sludge bed reactor |
| CN103588294B (en) * | 2013-10-28 | 2015-04-15 | 沈阳建筑大学 | Bypass-type constant-temperature internal-circulation anaerobic sludge bed reactor |
| CN104261558A (en) * | 2014-10-21 | 2015-01-07 | 华新水泥股份有限公司 | Internal circulation type anaerobic fermentation device for waste extruded liquid |
| CN105692881A (en) * | 2014-11-27 | 2016-06-22 | 李彦民 | Aerobic granular sludge reactor |
| CN105692881B (en) * | 2014-11-27 | 2020-08-21 | 李彦民 | Aerobic granular sludge reactor |
| CN104671406A (en) * | 2015-02-15 | 2015-06-03 | 清华大学 | Method for cultivating gas self-circulation enhanced short-distance denitrification granular sludge |
| CN104671406B (en) * | 2015-02-15 | 2017-04-19 | 清华大学 | Method for cultivating gas self-circulation enhanced short-distance denitrification granular sludge |
| CN105712476A (en) * | 2016-01-29 | 2016-06-29 | 北京交通大学 | Gas circulating stirring type anaerobic culture domestication device and method |
| CN108249563A (en) * | 2016-12-28 | 2018-07-06 | 云南师范大学 | A kind of ciculation fluidized high efficiency anaerobic reactor |
| CN108249563B (en) * | 2016-12-28 | 2023-08-25 | 云南师范大学 | Circulating fluidization efficient anaerobic reactor |
| CN106745708A (en) * | 2017-01-24 | 2017-05-31 | 河海大学 | A kind of compound type sludge bed reactor and its application |
| WO2018218909A1 (en) * | 2017-05-27 | 2018-12-06 | 华南理工大学 | Jet anaerobic bioreactor for treating high-concentration organic sewage |
| AU2017416198B2 (en) * | 2017-05-27 | 2021-03-04 | South China University Of Technology | Jet flow anaerobic bioreactor for treating high-concentration organic wastewater |
| CN108911125A (en) * | 2018-07-18 | 2018-11-30 | 苏州清控环保科技有限公司 | A kind of novel upflow anaerobic sludge blanket reactor |
| CN111363679A (en) * | 2018-12-26 | 2020-07-03 | 浙江大学 | Method for stimulating large-scale secretion of exosomes by cells |
| CN111204860A (en) * | 2020-02-18 | 2020-05-29 | 广西广宇水资源技术开发有限公司 | Random pendulum fluid stirring anaerobic treatment device and process |
| CN111908525A (en) * | 2020-08-04 | 2020-11-10 | 新路国际环境工程有限公司 | Sewage adds medicine processing system |
| CN112759067A (en) * | 2021-02-03 | 2021-05-07 | 昆明理工大学 | Method and device for electromagnetic enhanced biological treatment of organic wastewater |
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Open date: 20070627 |