CN103395955B - High-speed and down-flow type sludge back-mixing anaerobic reactor - Google Patents
High-speed and down-flow type sludge back-mixing anaerobic reactor Download PDFInfo
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- CN103395955B CN103395955B CN201310361275.3A CN201310361275A CN103395955B CN 103395955 B CN103395955 B CN 103395955B CN 201310361275 A CN201310361275 A CN 201310361275A CN 103395955 B CN103395955 B CN 103395955B
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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
Abstract
A high-speed and down-flow type sludge back-mixing anaerobic reactor is disclosed. The main body is provided with a down-flow reaction area, an up-flow reaction area, an air-solid-liquid separation area and a water outlet area from the bottom to the top. The down-flow reaction area is formed by relative arrangement of a bucket shape body in the lower part and a taper cover in the upper part, a gap is saved between the bucket shape body and the taper cover, and the up-flow reaction area is above the taper cover; the air-solid-liquid separation area is provided with a three-phase separator, a water outlet weir is arranged above the water outlet area, and a water outlet pipe is arranged on the water outlet weir; a sludge reverse lifting backflow device is arranged on the top part of the main body, the device comprises an air-water separating tank, a sludge reverse lifting pipe and a backflow pipe, the sludge reverse lifting pipe is arranged between the air-water separating tank and the bottom of the down-flow reaction area, and the backflow pipe is arranged between the air-water separating tank and the bottom of the up-flow reaction area. The mass transfer of the sludge in the reactor is in a high-speed, reverse and down-flow mode, the mass transfer is stronger, the loss of sludge is maximally reduced, and the processing efficiency is prominently improved.
Description
Technical field
The present invention relates to a kind of anaerobic reaction device for the sewage disposal biochemical treatment stage, belong to anaerobic reaction technical field.
Background technology
Various traditional anaerobic reactor that present stage is used can classify as flow lifting type anaerobic reactor, this class anaerobic reactor simple structure, operation running and comparing is convenient, the upstream producing by ascending current and biogas plays the effect of stirring, normality up-flow speed, between 0.1-10 m/h, is used water cycle to drive mud to carry out mass transfer to reach the object of degradation of contaminant during start-up and operation.
But this class anaerobic reactor is owing to being flow lifting type principle, muddy water up-flow circulation from bottom to top, causes reaction zone anaerobic sludge to run off, and mud is affected by gravity to bottom natural sedimentation, causes mud to be deposited in bottom, and mud is but not used.Therefore, flow lifting type anaerobic reactor cannot solve the problem that bottom mud is piled up, there is current short circuit, mass transfer performances is poor and up-flow process in the shortcoming that runs off of anaerobic sludge, inapplicable high density water quality and can biochemical poor sewage disposal, even application, efficiency is also very low.
Need badly at present and a kind ofly can and can biochemical poor sewage carry out the anaerobic reactor of efficient fast processing to high density water quality.
Summary of the invention
The present invention is directed to the deficiency of existing anaerobic reactor, provide the high speed that a kind of mud reverse sinking streaming circulation mass transfer, anaerobic sludge turnover rate are low the heavy reverse mixing anaerobic reactor of streaming mud.This reactor has been overturned the technological principle of traditional anaerobism flow lifting type mass transfer, has proposed the theory of mud high-speed cruising reverse sinking streaming mass transfer, can and can carry out efficient fast processing by biochemical poor sewage to high density water quality.
High speed of the present invention is sunk the reverse mixing anaerobic reactor of streaming mud, adopts following technical proposals:
This reactor, comprises columnar body, is disposed with from bottom to top heavy streaming reaction zone, up-flow reaction zone, gas-solid-liquid disengaging zone and exhalant region in main body; Heavy streaming reaction zone is that bottom bucket shape body and upper taper cover positioned opposite form, and between bucket shape body and cone-shaped hood, leaves gap, and up-flow reaction zone is above cone-shaped hood; Gas-solid-liquid is provided with triphase separator in disengaging zone, and the top of exhalant region is provided with effluent weir, and effluent weir is provided with rising pipe; Main body top is provided with mud and oppositely promotes reflux, this device comprises gas water separation tank, the reverse riser tube of mud and return line, the reverse riser tube of mud is connected between gas water separation tank and the bottom of heavy streaming reaction zone, return line is connected between gas water separation tank and the bottom of up-flow reaction zone, the reverse riser tube of mud is connected with sludge lifting power, is connected with biogas pipe between gas water separation tank and triphase separator; The bottom of main body is provided with water distributor and the shore pipe stretching in heavy streaming reaction zone;
During operation, the reverse riser tube of mud is back to up-flow reaction zone bottom by return line by bottom sludge lifting by sludge lifting power (sludge lifting pump etc.) to gas water separation tank, waste water enters heavy streaming reaction zone by water distributor, mix with the mud refluxing simultaneously, now sedimentation flow velocity reaches 5m/ hour-10m/ hour, mud gravity and oppositely under lifting force effect to up-flow reaction zone bottom high-speed cruising and form eddy flow, form violent mass transfer with the sewage of upwards operation, under the effect of the reverse riser tube of mud, make the mud ceaselessly recycle back of going round and beginning again, therefore sludge loss becomes minimum, it is more strong that mass transfer becomes, avoided sludgd deposition, the gas-solid-liquid that waste water forms in heavy streaming reaction zone rises to up-flow reaction zone, in the normality up-flow speed of 0.1m/ hour-10m/ hour, carry out the degraded of amounts of residual contamination, then to gas-solid-liquid disengaging zone, by triphase separator, realize gas-solid-liquid separation, clear liquid is discharged through effluent weir, mud is to heavy streaming reaction zone sedimentation under gravity and reverse lifting force effect, and biogas enters gas water separation tank along biogas pipe, and the granule sludge that pond body produces is regularly discharged through shore pipe.
The aspect ratio of main body is 1:1-1:4.
Between heavy streaming reaction zone and up-flow reaction zone, be provided with gas-solid-liquid disengaging zone, bottom.
The present invention proposes the new concept of the heavy streaming mass transfer of a kind of mud high-speed reverse, overturned the operational mode of traditional anaerobism flow lifting type mass transfer, after oppositely being promoted, bottom mud to bottom, moves at a high speed, form violent mass transfer with the sewage of upwards operation, it is more strong that mass transfer becomes, both avoided sludgd deposition, make sludge loss become minimum, significantly improved again processing efficiency, guaranteed the stable of effluent quality, be applicable to the processing of various concentration organic polluting waters, be specially adapted to high density water quality and sewage disposal that can be biochemical poor.
Accompanying drawing explanation
Accompanying drawing is the structural representation of the reverse mixing anaerobic reactor of mud of the present invention
In figure: 1, main body, 2, heavy streaming reaction zone, 3, up-flow reaction zone, 4, gas-solid-liquid disengaging zone, 5, precipitate and separate exhalant region, 6, gas water separation tank, 7, effluent weir, 8, water distributor, 9, shore pipe, 10, return line, 11, the reverse riser tube of mud, 12, bucket shape body, 13, biogas pipe, 14, rising pipe, 15, cone-shaped hood, 16, sludge lifting pump.
Embodiment
As shown in drawings, the heavy reverse mixing anaerobic reactor of streaming mud of high speed of the present invention is column, adopts steel construction, mainly comprises columnar body 1, and main body aspect ratio is 1:1-1:4.In main body 1, be disposed with from bottom to top heavy streaming reaction zone 2, up-flow reaction zone 3, gas-solid-liquid disengaging zone 4 and precipitate and separate exhalant region 5.Heavy streaming reaction zone 2 is a bucket shape body 12 that makes progress uncovered and forms to cone-shaped hood 15 positioned opposite of lower open mouth, leaves the current gap of muddy water between bucket shape body 12 and cone-shaped hood 15.In gas-solid-liquid disengaging zone 4, be provided with triphase separator.The top of precipitate and separate exhalant region 5 is provided with effluent weir 7, and effluent weir 7 is provided with rising pipe 14.Also can gas-solid-liquid disengaging zone, a bottom be set between heavy streaming reaction zone 2 and up-flow reaction zone 3 again, bottom also arranges triphase separator in gas-solid-liquid disengaging zone.
The top of main body 1 is provided with mud and oppositely promotes reflux, this device comprises gas water separation tank 6, the reverse riser tube 11 of mud and return line 10, the reverse riser tube 11 of mud is connected between gas water separation tank 6 and the bottom of heavy streaming reaction zone 2, return line 10 is connected between gas water separation tank 6 and the bottom of up-flow reaction zone 3, on the reverse riser tube 11 of mud, is connected with sludge lifting pump 16.By sludge lifting pump 16, bottom mud is oppositely promoted in gas water separation tank 6 along the reverse riser tube 11 of mud, then is refluxed downwards by return line 10, with the strong mass transfer of up sewage.Sludge lifting pump 16 also can adopt other sludge lifting power-equipment.
Between gas water separation tank 6 and gas-solid-liquid disengaging zone 4, be connected with biogas pipe 13, the biogas in up-flow reaction zone 3 introduced to gas water separation tank 6, then discharge by gas water separation tank 6.The bottom of main body 1 is provided with water distributor 8 and the shore pipe 9 stretching in heavy streaming reaction zone, on water distributor 8 and shore pipe 9, is equipped with control valve, and water distributor 8 is positioned at shore pipe 9 tops.
The operational process of the heavy reverse mixing anaerobic reactor of streaming mud of above-mentioned high speed is as described below:
Start sludge lifting pump 16, bottom mud is promoted to gas water separation tank 6 along the reverse riser tube 11 of mud, then by return line 10, be back to 2 bottoms, up-flow reaction zone, waste water enters heavy streaming reaction zone 2 by water distributor 8, mix with the dense mixed solution of height refluxing simultaneously, its downwelling scooter is to 5-10m/h, anaerobic sludge under gravity and the reverse castering action of mud to heavy streaming reaction zone 3 high-speed cruisings, form violent mass transfer with the sewage of upwards operation, under the effect of the reverse riser tube 11 of mud, be promoted to again gas water separation tank 6, form circulation.In up-flow reaction zone 3, still exist anerobe to organic degraded, produce biogas simultaneously, again form gas-solid-liquid, then rise to together gas-solid-liquid disengaging zone 4, and by triphase separator, realize gas-solid-liquid separation at this, clear liquid through settling region 5 and effluent weir 7 along water shoot 14, to discharge ponds external, mud is to sedimentation at the bottom of pond under the effect of gravity, biogas enters gas water separation tank 6 along biogas pipe 13.The granule sludge that main body 1 produces is regularly discharged outside pond through shore pipe 9.
Heavy streaming reaction zone 2 interior sludge concentrations are high, gas production rate is large, the interior sludge concentration in up-flow reaction zone 3 is low, bottom making by the reverse riser tube 11 of mud, after sludge lifting, reflux again and form recycle back, mud oppositely forms violent mass transfer with the sewage of upwards operation in operational process downwards under action of gravity, under the effect of the reverse riser tube 15 of mud, be again promoted to gas water separation tank, the ceaselessly recycle back of going round and beginning again, therefore sludge loss becomes minimum, oppositely mass transfer becomes more strong, has promoted microorganism to contact and transmission ofenergy with the effective of pollutent.The gas-solid-liquid that waste water forms in heavy streaming reaction zone rises to up-flow reaction zone, carries out the degree of depth degraded of amounts of residual contamination in the normality up-flow speed of 0.1m/ hour-10m/ hour.At the interior microorganism in up-flow reaction zone 3 and the abundant absorption degradation of organic pollutant, it is the place that pollutant removal is the highest.Gas water separation tank 6 plays the effect that connects heavy streaming reaction zone 2 and up-flow reaction zone 3, object is to allow the organic waste water of high density fully contact with microorganism at short notice, for the Fast-propagation of particulate matter provides sufficient nutrient material, promote biological self reproducing, simultaneously by washing away at a high speed, shear, form active high granule sludge.
The feature of above-mentioned anaerobic reactor is that high speed in reversed direction sinks streaming mass transfer, completely different from the operational mode of traditional anaerobism flow lifting type mass transfer, it is more strong that mass transfer becomes, avoided sludgd deposition, make sludge loss become minimum, significantly improved processing efficiency, COD volumetric loading is high, more than can reaching 10-20 kg/m3.d, be specially adapted to high density water quality and sewage disposal that can be biochemical poor.
Claims (3)
1. the heavy reverse mixing anaerobic reactor of streaming mud of high speed, comprises columnar body, it is characterized in that: in main body, be disposed with from bottom to top heavy streaming reaction zone, up-flow reaction zone, gas-solid-liquid disengaging zone and exhalant region; Heavy streaming reaction zone is that bottom bucket shape body and upper taper cover positioned opposite form, and between bucket shape body and cone-shaped hood, leaves gap, and up-flow reaction zone is above cone-shaped hood; Gas-solid-liquid is provided with triphase separator in disengaging zone, and the top of exhalant region is provided with effluent weir, and effluent weir is provided with rising pipe; Main body top is provided with mud and oppositely promotes reflux, this device comprises gas water separation tank, the reverse riser tube of mud and return line, the reverse riser tube of mud is connected between gas water separation tank and the bottom of heavy streaming reaction zone, return line is connected between gas water separation tank and the bottom of up-flow reaction zone, the reverse riser tube of mud is connected with sludge lifting power, is connected with biogas pipe between gas water separation tank and triphase separator; The bottom of main body is provided with water distributor and the shore pipe stretching in heavy streaming reaction zone;
During operation, the reverse riser tube of mud is back to up-flow reaction zone bottom by return line by bottom sludge lifting by sludge lifting power to gas water separation tank, waste water enters heavy streaming reaction zone by water distributor, mix with the mud refluxing simultaneously, now sedimentation flow velocity reaches 5m-10m/ hour, mud gravity and oppositely under lifting force effect to up-flow reaction zone bottom high-speed cruising and form eddy flow, form violent mass transfer with the sewage of upwards operation, under the effect of the reverse riser tube of mud, make the mud ceaselessly recycle back of going round and beginning again, therefore sludge loss becomes minimum, it is more strong that mass transfer becomes, avoided sludgd deposition, the gas-solid-liquid that waste water forms in heavy streaming reaction zone rises to up-flow reaction zone, in the normality up-flow speed of 0.1m/ hour-10m/ hour, carry out the degraded of amounts of residual contamination, then to gas-solid-liquid disengaging zone, by triphase separator, realize gas-solid-liquid separation, clear liquid is discharged through effluent weir, mud is to heavy streaming reaction zone sedimentation under gravity and reverse lifting force effect, and biogas enters gas water separation tank along biogas pipe, and the granule sludge that pond body produces is regularly discharged through shore pipe.
2. the heavy reverse mixing anaerobic reactor of streaming mud of high speed according to claim 1, is characterized in that: the aspect ratio of described main body is 1:1-1:4.
3. the heavy reverse mixing anaerobic reactor of streaming mud of high speed according to claim 1, is characterized in that: between described heavy streaming reaction zone and up-flow reaction zone, be provided with gas-solid-liquid disengaging zone, bottom.
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| CN103880178B (en) * | 2014-03-07 | 2015-05-20 | 许中华 | Multistage gas stripping and separating integrated anaerobic treatment device |
| CN108467106B (en) * | 2018-04-12 | 2024-01-30 | 桂林润智环保有限公司 | Aerobic granular sludge continuous flow type reactor and working method thereof |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101007682A (en) * | 2007-01-19 | 2007-08-01 | 哈尔滨工业大学 | Hydrogen making apparatus using high concentrated organic wastewater and its hydrogen making method |
| CN103011402A (en) * | 2013-01-05 | 2013-04-03 | 许中华 | Double-circulation anaerobic reactor |
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| CN203392922U (en) * | 2013-08-19 | 2014-01-15 | 许中华 | High-speed sink-flow type reverse sludge mixing anaerobic reactor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101007682A (en) * | 2007-01-19 | 2007-08-01 | 哈尔滨工业大学 | Hydrogen making apparatus using high concentrated organic wastewater and its hydrogen making method |
| CN103011402A (en) * | 2013-01-05 | 2013-04-03 | 许中华 | Double-circulation anaerobic reactor |
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Effective date of registration: 20180208 Address after: 250101 Ji'nan hi tech Zone, Shandong Province, No. 4733 A2-1 Patentee after: Shandong Xu China Environmental Protection Technology Co., Ltd. Address before: 250101 Shandong Province, Ji'nan City Industrial Road No. 100 building room 12B01 Shandong Fengrun Yilong Environmental Protection Engineering Co. Ltd. Patentee before: Xu Zhonghua |