CN201313860Y - Integrated aeration-sedimentation aerobic reactor - Google Patents

Integrated aeration-sedimentation aerobic reactor Download PDF

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Publication number
CN201313860Y
CN201313860Y CNU2008201234139U CN200820123413U CN201313860Y CN 201313860 Y CN201313860 Y CN 201313860Y CN U2008201234139 U CNU2008201234139 U CN U2008201234139U CN 200820123413 U CN200820123413 U CN 200820123413U CN 201313860 Y CN201313860 Y CN 201313860Y
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China
Prior art keywords
aeration
aeration zone
settling region
sedimentation
sludge
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Expired - Lifetime
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CNU2008201234139U
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Chinese (zh)
Inventor
李玉平
李海波
曹宏斌
张懿
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Institute of Process Engineering of CAS
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Institute of Process Engineering of CAS
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Abstract

The utility model relates to an integrated aeration-sedimentation aerobic reactor, which belongs to the technical field of wastewater treatment. The utility model combines an aeration zone and a sedimentation zone into an integrated rectangular reaction tank; inclined tube packing is assembled in the sedimentation section; the sedimentation time is shortened; slops are utilized to carry out the gravity reflux of sludge; and bored compressed air tubes and an underwater impeller are arranged to force reflux when the sludge is sedimentated. Because the utility model does not need a reflux pump, the power consumption is little, the concentration of the refluxed sludge is high, the detention time in the sedimentation section is short, the flora change of the refluxed activated sludge is little, the activity is high, the sedimentability is good, high sludge concentration can be easily operated, the treatment efficiency is high, and the impact-resistant load capacity is strong. The volume of the sedimentation section is small, the occupied space is small, a plurality of reactors can be easily connected together in series or in parallel to form a large rectangular tank because of the rectangular structure of the integrated reaction tank, the structure is compact, plane arrangement is easy, and therefore, the utility model solves the defects of the conventional round secondary sedimentation tank, including large space occupation and difficult plane arrangement.

Description

A kind of aeration-precipitation integrative aerobic reactor
Technical field
The utility model includes the aerobe reactor technical field of organic waste water biological treatment, and specifically a kind of collection aerobic aeration and muddy water precipitate and separate that is used for the organic waste water biological treatment is the aerobic reactor of one.
Background technology
Wastewater processing technology is divided into physics, chemistry and biological method.Wherein, the aerobe treatment technology has advantages such as cost is lower, mineralising is comparatively thorough, is used widely in municipal effluent and Industrial Wastewater Treatment.Tradition aerobic treatment reactor generally is that branch is built formula, is divided into aeration tank and second pond; Owing to need microbe inoculation in the aeration tank, so the mud discharge of backflow is up to 30%-150% (with respect to flooding velocity) from second pond toward the aeration tank, it is many that thereby reactor waterpower load increases, and it is a lot of to make that aeration tank and second pond volume increase, and increases processing cost and floor space; Independent second pond generally adopts circular width of cloth flow settling pond, is difficult to build with orthogonal aeration tank connection, and the two volume own is bigger in addition, makes that occupation of land is very big; Denitrification takes place and causes the mud come-up because the residence time reaches 1-2 hours in second pond easily simultaneously, thus water outlet concentration of suspension height; The returned sluge activity is lower in addition, easier generation sludge bulking.These shortcomings have all had a strong impact on the engineering effect of aerobe treatment technology, so the important development direction that to develop novel reactor efficient, energy-conservation and that floor space is little be modern biotechnology.The utility model is to research and develop at the above-mentioned shortcoming of existing aerobe reactor existence, has important practical value and realistic meaning to promoting biologic treating technique.
Summary of the invention
The purpose of this utility model is in order to solve the problems referred to above that existing aerobe reactor exists, it is the aerobic reactor of one that a kind of collection aerobic aeration and muddy water precipitate and separate that is used for the organic waste water biological treatment is provided, and has developed little, the lower-cost high-efficiency aerobic bio-reactor of a kind of occupation of land.
The technical scheme that the utility model is taked: 1 pair of the utility model is described as follows in conjunction with the accompanying drawings:
The utility model reactor mainly comprises aeration zone 1 and settling region 2.Aeration zone 1 and settling region 2 are rectangle, and building jointly is a big rectangle form pool, and wherein the long-width ratio of aeration zone 1 is 1:1~2:1.Blast aeration device 3 is installed in 1 bottom, aeration zone, particularly near with aeration zone 1 bottom position of settling region 2 boundary aerating apparatus 3 being installed, to impel mud 1 mixing in the aeration zone rapidly that refluxes along the slope.Aeration zone 1 connects by an inlet channel 5 mutually with settling region 2.The feed-water end top of inlet channel 5 is provided with overflow plate 6, and the bottom is provided with rectification hole 7, and the muddy water mixed solution of aeration zone enters the inlet channel 5 of settling region 3 by overflow plate 6, and the rectification hole 7 by the bottom evenly enters the settling region then; Inlet channel 5 bottoms are baffles 8, and the angle of itself and vertical direction is 120~160 °, directly flows to into settling region 2 from following weak point with the mixed solution that prevents aeration zone 1.
Inclined tube filler 4 is installed on 2 tops, settling region, and its caliber is 50 or 80mm; Top mounting strap effluent weir go out water channel 13; 2 water outlet directions middle part, settling region and bottom are provided with the slope and are beneficial to the mud gravity reflux, and ramp angles is 40~70 °; Top, slope and middle part are provided with compressed air pipe 10, and opening direction is downward along the slope parallel direction, action edge under the pressure when depositing as mud; Underwater propeller 9 is installed with aeration zone 1 bottom connecting place in the bottom, mud 2 can be advanced to aeration zone 1 from the settling region when mud deposits; Perforated sludge discharge pipe 10 is installed in the bottom, and its perforate direction is along the slope direction upwards.
After organic waste water enters the aeration zone, with the active sludge thorough mixing, and obtain oxygenolysis under microbial process under the aeration effect, muddy water mixed solution evenly enters the settling region by inlet channel 5, carries out precipitate and separate at the swash plate filler then.Clear water after the separation enters outlet weir 13, by the water shoot outflow system; Sedimentary active sludge by the descending aeration zone that is back to of gravity, is brought to the middle and upper part of aeration zone along the slope rapidly by up aeration gas flow, mix with waste water.When causing that when mud appearance alluvial gravity reflux is smooth, can open compressed air pipe 10, accelerate sludge is descending, when the alluvial especially severe, can open underwater propeller 9, impels mud to reflux to the aeration zone.Unnecessary mud can intermittently pass through the perforated sludge discharge pipe spoil disposal, sends system by sludge pump then.Since baffle stop that the aeration zone mixed solution overwhelming majority enters the settling region by inlet channel 5, prevented that mixed solution from directly flowing to into the settling region from following weak point.
Compare with existing aerobe reactor, advantage of the present utility model is:
1) the mud backflow is main does not need reflux pump by gravity reflux, and power consumption is little, returned sluge concentration height, and under the volumetrical situation of identical aeration zone, waste water is long in the actual residence time of this novel reactor aeration zone, thus processing efficiency improves;
2) because the settling region is a rectangle, inclined tube is installed easily, behind the inclined tube reinforced deposition, mud-water separation is effective, the settling region residence time short (being no more than 30min), avoided traditional second pond generation denitrification and the mud come-up that causes, and the water outlet concentration of suspension is low;
3) the settling region volume is little, builds jointly with the aeration zone to be the orthogonal integral reactor, takes up an area of very little, the a plurality of reactors of realization are built jointly easily simultaneously, structure is very compact, and floor plan has avoided traditional circular second pond to take up an area of greatly and be difficult to the shortcoming of floor plan easily;
4) because the settling region residence time is short, and the active sludge flora of backflow changes little, and activity is very high, and settleability is good, moves high sludge concentration easily, thus the efficient height, and the anti impulsion load ability is strong;
Description of drawings
Fig. 1 is the aerobic reactor of one for the collection aerobic aeration and the muddy water precipitate and separate that are used for the organic waste water biological treatment that the utility model provides; Wherein:
1 aeration zone, 2 settling regions, 3 blast aeration devices, 4 inclined tube fillers, 5 settling region inlet channels, 6 aeration zone overflow plates, 7 rectification hole, 8 baffles, 9 underwater propellers, 10 compressed air pipes, 11 perforated sludge discharge pipes, 12 sludge pumps, 13 go out water channel.
Embodiment
Embodiment 1
Aeration zone 4 * 4m, settling region 0.5 * 4m is an integral type rectangle reaction tank (4.5 * 4m) with reinforced concrete cast-in-situ, internal structure such as accompanying drawing 1, micropore aeration pipe is installed in the bottom, aeration zone, and the baffle angle is 120 °, 40 ° of swash plate angles, inclined tube filler caliber 50mm.This integrated reacting pond is used for Treatment of Wastewater in Coking, and former water COD is 2000-6000mg/L at coking chemical waste water, and under the situation of ammonia nitrogen up to 400mg/L, COD and ammonia-N removal rate all are stabilized in more than 95%, and water outlet is highly stable; Total hydraulic detention time only is 25 hours, far below residence time of traditional Treatment of Coking Effluent more than 50 hours, ton water treatment (aeration and the reagent consumption) cost of adjusting only is 2.5 yuan, far below 6 yuan/ton of traditional reactor, has overcome pre-existing reactors and has taken up an area of huge shortcoming.
Embodiment 2:
Aeration zone 8 * 4m, settling region 1 * 4m, with reinforced concrete cast-in-situ be integral type rectangle reaction tank (9 * 4m), internal structure such as accompanying drawing 1, micropore aeration pipe is installed in aeration zone bottom, the baffle angle is 160 °, 70 ° of swash plate angles, inclined tube filler caliber 80mm.This integrated reacting pond is used for Processing Paper Wastewater, and former water COD is more than the 2000mg/L at paper waste, and the COD clearance all is stabilized in more than 95%, and water outlet is highly stable; Ton water treatment (aeration and reagent consumption) cost of adjusting only is 0.5 yuan, far below 1 yuan/ton of traditional reactor.
Embodiment 3:
Aeration zone 6 * 4m, settling region 0.8 * 4m is an integral type rectangle reaction tank (6.8 * 4m) with reinforced concrete cast-in-situ, internal structure such as accompanying drawing 1, the micro-pore aeration dish is installed in the bottom, aeration zone, and the baffle angle is 140 °, 52 ° of swash plate angles, inclined tube filler caliber 80mm.This integrated reacting pond is used for Treatment of Wastewater in Coking, and former water COD is 2000-6000mg/L at coking chemical waste water, and under the situation of ammonia nitrogen up to 400mg/L, COD and ammonia-N removal rate all are stabilized in more than 95%, and water outlet reaches national secondary discharge standard; Total hydraulic detention time only is 25 hours, and far below residence time of traditional Treatment of Coking Effluent more than 50 hours, ton water treatment (aeration and the reagent consumption) cost of accounting only is 2.5 yuan, far below 6 yuan/ton of traditional reactor.

Claims (5)

1, a kind of aeration-precipitation integrative aerobic reactor, it is characterized in that, reactor is divided into aeration zone and settling region, aeration zone and settling region are rectangle, building jointly is a big rectangle form pool, wherein the long-width ratio of aeration zone is 1:1~2:1, the blast aeration device is installed in the bottom, aeration zone, particularly near aerating apparatus being installed with the bottom, aeration zone of settling region boundary, the aeration zone connects by an inlet channel mutually with the settling region, the feed-water end top of inlet channel is provided with overflow plate, the bottom is provided with rectification hole, and the aeration zone mixed solution evenly enters inlet channel by overflow plate, evenly enters the settling region by rectification hole, the inlet channel bottom is a baffle, directly flows to into the settling region from following weak point with the mixed solution that prevents the aeration zone.
2, aeration according to claim 1-precipitation integrative aerobic reactor, it is characterized in that described settling region, the inclined tube filler is installed on top, top mounting strap water outlet overflow weir go out water channel, it is 40~70 ° slope that water outlet direction middle part and bottom are provided with angle, top, slope and middle part are provided with the perforate compressed air pipe, action edge under the pressure when depositing as mud, underwater propeller is installed with bottom, aeration zone connecting place in the bottom, slope, when depositing, mud mud can be advanced to the aeration zone from the settling region, the bottom is installed perforated sludge discharge pipe and is carried out excess sludge discharge, and shore pipe perforate direction is along the slope parallel direction upwards.
3, aeration according to claim 1-precipitation integrative aerobic reactor, the angle that it is characterized in that described baffle and vertical direction is 120~160 °.
4, aeration according to claim 1 and 2-precipitation integrative aerobic reactor is characterized in that described inclined tube filler caliber is 50 or 80mm.
5, aeration according to claim 1 and 2-precipitation integrative aerobic reactor is characterized in that described perforate compressed air pipe opening direction is for downward along the slope parallel direction.
CNU2008201234139U 2008-10-28 2008-10-28 Integrated aeration-sedimentation aerobic reactor Expired - Lifetime CN201313860Y (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102001768A (en) * 2010-11-17 2011-04-06 上海同济建设科技有限公司 Integrated low-energy consumption sewage treatment device and method
CN102381805A (en) * 2011-08-03 2012-03-21 交通运输部科学研究院 Method and device for comprehensively purifying runoff rainwater
CN102874927A (en) * 2012-10-16 2013-01-16 北京赛科康仑环保科技有限公司 Biological treatment method, biological treatment system and bioreactor of coal chemical wastewater
CN103395948A (en) * 2013-08-18 2013-11-20 武汉宝捷能环境工程技术有限公司 Z-shaped gas stripping reflux two-stage precipitation integrated sewage treatment tank
CN106336072A (en) * 2016-08-29 2017-01-18 中冶焦耐(大连)工程技术有限公司 Integrated double-circulation aerobiotic reactor and wastewater treatment process
CN107010720A (en) * 2017-06-14 2017-08-04 北京工业大学 A kind of high-efficiency aerobic granule sludge continuous flow reactor and operation method
CN109133335A (en) * 2018-09-18 2019-01-04 苏州科大环境发展股份有限公司 A kind of vertical-flow high sludge concentration aerobic reactor
CN109607983A (en) * 2019-01-31 2019-04-12 四川美富特水务有限责任公司 Aeration tank, sewage disposal system and sewage water treatment method
CN111233150A (en) * 2020-03-09 2020-06-05 浙江问源环保科技股份有限公司 Anaerobic and aerobic sewage treatment method based on three-phase separation
CN111943463A (en) * 2020-10-19 2020-11-17 湖南湘新水务环保投资建设有限公司 Reduce membrane pollution's sewage treatment system

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102001768A (en) * 2010-11-17 2011-04-06 上海同济建设科技有限公司 Integrated low-energy consumption sewage treatment device and method
CN102381805A (en) * 2011-08-03 2012-03-21 交通运输部科学研究院 Method and device for comprehensively purifying runoff rainwater
CN102874927A (en) * 2012-10-16 2013-01-16 北京赛科康仑环保科技有限公司 Biological treatment method, biological treatment system and bioreactor of coal chemical wastewater
CN102874927B (en) * 2012-10-16 2014-10-29 北京赛科康仑环保科技有限公司 Biological treatment method, biological treatment system and bioreactor of coal chemical wastewater
CN103395948A (en) * 2013-08-18 2013-11-20 武汉宝捷能环境工程技术有限公司 Z-shaped gas stripping reflux two-stage precipitation integrated sewage treatment tank
CN106336072A (en) * 2016-08-29 2017-01-18 中冶焦耐(大连)工程技术有限公司 Integrated double-circulation aerobiotic reactor and wastewater treatment process
CN107010720A (en) * 2017-06-14 2017-08-04 北京工业大学 A kind of high-efficiency aerobic granule sludge continuous flow reactor and operation method
CN107010720B (en) * 2017-06-14 2020-07-31 北京工业大学 Efficient aerobic granular sludge continuous flow reactor and operation method thereof
CN109133335A (en) * 2018-09-18 2019-01-04 苏州科大环境发展股份有限公司 A kind of vertical-flow high sludge concentration aerobic reactor
CN109607983A (en) * 2019-01-31 2019-04-12 四川美富特水务有限责任公司 Aeration tank, sewage disposal system and sewage water treatment method
CN111233150A (en) * 2020-03-09 2020-06-05 浙江问源环保科技股份有限公司 Anaerobic and aerobic sewage treatment method based on three-phase separation
CN111233150B (en) * 2020-03-09 2021-04-09 浙江问源环保科技股份有限公司 Anaerobic and aerobic sewage treatment method based on three-phase separation
CN111943463A (en) * 2020-10-19 2020-11-17 湖南湘新水务环保投资建设有限公司 Reduce membrane pollution's sewage treatment system
CN111943463B (en) * 2020-10-19 2020-12-15 湖南湘新水务环保投资建设有限公司 Reduce membrane pollution's sewage treatment system

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Granted publication date: 20090923