CN100560515C - The batch type aerobic particle sludge membrane bioreactor effluent treatment process - Google Patents

The batch type aerobic particle sludge membrane bioreactor effluent treatment process Download PDF

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Publication number
CN100560515C
CN100560515C CNB2007100149425A CN200710014942A CN100560515C CN 100560515 C CN100560515 C CN 100560515C CN B2007100149425 A CNB2007100149425 A CN B2007100149425A CN 200710014942 A CN200710014942 A CN 200710014942A CN 100560515 C CN100560515 C CN 100560515C
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reactor
membrane
aeration
batch type
water
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CN101100333A (en
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王曙光
巩文信
孙雪菲
刘贤伟
张成禄
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Shandong University
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Shandong University
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    • 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
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Abstract

The present invention relates to a kind of batch type aerobic particle sludge membrane bioreactor effluent treatment process, comprise sewage input, aeration, intermittently draw water, quiet heavy, draining, reflow step.The present invention has realized the granular sludge in the membrane bioreactor with the operational mode of sequence batch (.That total system experiences in time is aerobic, anaerobism and anaerobic environment, can carry out effectively removing synchronously to nutritive elements such as carbon containing organic pollutant and nitrogen, phosphorus.Adopt the batch type aerobic particle sludge membrane bioreactor effluent treatment process to handle city domestic sewage, the chemical oxygen demand COD clearance can reach more than 95% after the steady running, ammonia nitrogen maintains below the 1mg/L, the clearance of total nitrogen and total phosphorus remains on respectively more than 90% and 45%, film pollutes obviously and reduces simultaneously, the membrane flux lowering speed slows down more than 50%, and can make membrane flux return to original state substantially by simple waterpower cleaning after the film pollution, has good economy and environmental benefit.

Description

The batch type aerobic particle sludge membrane bioreactor effluent treatment process
Technical field
The present invention relates to a kind of sewage treatment process, specifically a kind of batch type aerobic particle sludge membrane bioreactor effluent treatment process.
Background technology
(Membrane Bioreactor is that biological treatment and membrane technique are joined together and the novel wastewater processing technology that forms MBR) to existing membrane bioreactor, can carry out solid-liquid separation efficiently, improves volumetric loading, saves floor space.Traditional MBR mainly be with active sludge as the biological treatment main body, in operational process, active sludge is made film forming pollution easily at the film surface deposition; Activated sludge concentration height in the reactor also can cause sewage viscosity to increase simultaneously, influences the transfer efficiency of oxygen, and then influences effluent quality.Therefore, among the MBR in the mixed solution characteristic of mud be one of restriction MBR widespread use key factor.And complex process, the cost height.
Summary of the invention
The present invention is for overcoming above-mentioned the deficiencies in the prior art; provide a kind of and in the column bio-reactor, realize the aerobic sludge granulating, by being immersed in the batch type aerobic particle sludge membrane bioreactor effluent treatment process of the film suction water outlet in the reactor with the operational mode of sequence batch (.
The objective of the invention is to adopt following technical proposals to realize:
A kind of batch type aerobic particle sludge membrane bioreactor effluent treatment process is that the operational mode with sequence batch (realizes the aerobic sludge granulating in the column bio-reactor, by being immersed in the membrane module suction water outlet in the reactor; Membrane module is the tubular type hollow microfiltration membrane of being produced by film sky, Tianjin film company, and aperture 0.2 μ m is placed on 1/2nd of reactor naturally and highly locates; Water outlet is aspirated water outlet by vacuum pump, takes out 10 minutes, has a rest 5 minutes, keeps aeration in the exiting water process; Water inlet water pump and pneumatic pump operation are controlled by the time relay; Reactor is the synthetic glass post, and useful volume is 32L; Concrete steps are as follows:
A, through water inlet pipe treatment sewage is squeezed into the batch type aerobic particle sludge membrane bio-reactor in 2-20min, the aerating apparatus aeration 30-90min that is provided with by the bottom by water pump;
B, utilize vacuum pump to draw water, adopt the method for intermittent suction by membrane module, i.e. 15min one-period, 10min draws water, 5min intermittently, the uninterrupted aeration of pump process, aeration time are 60-90min;
After C, aeration finished, reactor carried out the quiet heavy of 1-10min, at reactor middle part rising pipe water was entered reflux sedimentation tank afterwards, and the increase of quiet heavy time along with sludge concentration constantly reduces;
D, draining finish to reflux by reflux pump behind the idle 5-15min, by filtration unit the mud of getting rid of is blocked in the reflux sedimentation tank during backflow, sewage then can come back in the reactor, and the volume of each spoil disposal and backflow is 1/4th of whole reactor; Finally, the sewage after the purification is discharged by vacuum pump through membrane module.
The granular biologic process for treating sewage of realization aerobic sludge in membrane bioreactor that the present invention proposes, its principle mainly comprises:
(1) optimizes reactor condition, realize the aerobic sludge granulating.Short hydraulic detention time and bigger current shearing action help to form aerobic particle mud; and membrane bioreactor adopts the mode water outlet of intermittent suction; can't provide short hydraulic detention time and big waterpower to select to press; therefore by regular spoil disposal of reflux and backflow supernatant liquor are set; can realize the aerobic sludge granulating by realizing the operational mode of sequence batch (in membrane bioreactor.
(2) slow down film mud, prolong membrane lifetime, membrane module cleans convenient.In the technology of the present invention, membrane bioreactor is placed in the aerobic particle mud sequencing batch reactor, because the formed mixed solution sewage sludge viscosity of aerobic particle mud is little, the outer polymer (EPS) of bacterium born of the same parents that is dissolved in the mixed solution is few, and suspension mixed solution sludge concentration is low, and the swabbing pressure that helps film maintains steady state, and the organism that is adsorbed on the film surface significantly reduces, reduce the formation thickness of film surface gel layer, helped decelerating membrane pollution, improved the working time and the life-span of film.In addition, aerobic particle mud has good settling property, helps the solid-liquid separation of mud mixed liquid, has reduced the touch opportunity and the area on mud and membrane module surface, also is beneficial to the working time and the work-ing life of membrane component and prolong.Simultaneously think highly of film that sludgd deposition causes at integrated aerobic sludge membrane biological reaction in this technology and pollute gentlyer, film pollutes the back and cleans by air blowback or waterpower and can make membrane flux return to original state substantially.
(3) efficiently remove organism.To removal effect of organic matter from two aspects: aerobic particle mud has a stronger Degradation to organic in integrated aerobic granular sludge membrane bioreactor on the one hand.Simultaneously in this device because film for the crown_interception of microorganism, helps the cultivation of some obligate microorganism, make biological degradation obtain enhancing; Be the crown_interception of film on the other hand to macromolecular substance, macromolecular substance can be trapped within the aerobic reactor in the aerobic granular sludge membrane bioreactor, acquisition is the more and microorganism contact reacts time than traditional activated sludge process, improves organic removal efficient.
(4) biological removal of nitrogen phosphorus.Because aerobic particle mud has bigger particle diameter, and penetrating of oxygen had suitable resistancing action, even there is certain oxygen concn the particle outside, inside still can form the anoxybiotic microenvironment.Granule sludge can be created different environment, makes nitrobacteria and denitrifying bacterium possess the space that is fit to separately, can play a role simultaneously, helps the carrying out of nitrification and denitrification simultaneously.Thereby a kind of batch type aerobic particle sludge membrane bioreactor effluent treatment process can be realized nitrification and denitrification simultaneously, the efficient removal of nitrogen phosphorus in the realization response device.
Adopt the batch type aerobic particle sludge membrane bioreactor effluent treatment process to handle city domestic sewage, the chemical oxygen demand COD clearance can reach more than 95% after the steady running, ammonia nitrogen maintains below the 1mg/L, the clearance of total nitrogen and total phosphorus remains on respectively more than 90% and 45%, film pollutes obviously and reduces simultaneously, the membrane flux lowering speed slows down more than 50%, and can make membrane flux return to original state substantially by simple waterpower cleaning after the film pollution, has good economy and environmental benefit.
The present invention can be widely used in the processing of city domestic sewage and trade effluent, and the removal of pollutent and the water quality of water outlet all are significantly improved, and have good environment and economic benefit.
The present invention mainly contains following advantage:
1, effectively improves the character of the mixed liquid of mud among the MBR, reduced pollution substance in the absorption of fenestra inwall with cause the possibility that the fenestra road blocks, reduced dissolved organic matter content, effectively stoped the formation of film surface mud cake, slowed down pollution membrane module;
2, the existence of the anoxic of granule sludge inside and anaerobic environment makes that the nitrification and denitrification process can exist simultaneously in the membrane bioreactor;
3, the membrane flux lowering speed is slow, and by simple waterpower cleaning the flux of aerobic granular sludge membrane bioreactor is recovered substantially, and system maintenance is cleaned convenient, and the life-span of film is long;
4, performance stability is good, the processing efficiency height, and stable effluent quality, flow process is simple, facility compact, floor space is little, easily realizes control automatically, and operational management is simple.
Embodiment
Embodiment 1:
A kind of batch type aerobic particle sludge membrane bioreactor effluent treatment process is that the operational mode with sequence batch (realizes the aerobic sludge granulating in the column bio-reactor, by being immersed in the membrane module suction water outlet in the reactor.Membrane module is the tubular type hollow microfiltration membrane of being produced by film sky, Tianjin film company, and aperture 0.2 μ m is placed on 1/2nd of reactor naturally and highly locates.Water outlet is aspirated water outlet (took out 10 minutes, had a rest 5 minutes) by vacuum pump, keeps aeration in the exiting water process.Water inlet water pump and pneumatic pump operation are controlled by the time relay.Reactor is the synthetic glass post, and useful volume is 32L.
Concrete processing step is:
1, water pump is squeezed into treatment sewage the batch type aerobic particle sludge membrane bio-reactor through water inlet pipe in 20min, in the reaction of aerobic particle mud district, and the aerating apparatus aeration 60min that is provided with by the bottom.
2, utilize vacuum pump to draw water, adopt the method for intermittent suction by membrane module, i.e. 15min one-period, 10min draws water, 5min intermittently, the uninterrupted aeration of pump process, aeration time are 90min.
3, after aeration finishes, reactor carries out the quiet heavy of 8min, rising pipe II at reactor middle part enters reflux sedimentation tank with water afterwards, and the volume of each spoil disposal and backflow is 1/4th of a whole reactor, and the increase of quiet heavy time along with sludge concentration constantly reduces.
4, draining finishes to reflux by reflux pump behind the idle 15min, by filtration unit the mud of getting rid of is blocked in the reflux sedimentation tank during backflow, sewage then can come back in the reactor, and the volume of each spoil disposal and backflow is 1/4th of whole reactor; Finally, the sewage after the purification is discharged by vacuum pump through membrane module.
Embodiment 2:
A kind of batch type aerobic particle sludge membrane bioreactor effluent treatment process is that the operational mode with sequence batch (realizes the aerobic sludge granulating in the column bio-reactor, by being immersed in the membrane module suction water outlet in the reactor.Membrane module is the tubular type hollow microfiltration membrane of being produced by film sky, Tianjin film company, and aperture 0.2 μ m is placed on 1/2nd of reactor naturally and highly locates.Water outlet is aspirated water outlet (took out 10 minutes, had a rest 5 minutes) by vacuum pump, keeps aeration in the exiting water process.Water inlet water pump and pneumatic pump operation are controlled by the time relay.Reactor is the synthetic glass post, and useful volume is 32L.
Concrete processing step is:
1, water pump is squeezed into treatment sewage the batch type aerobic particle sludge membrane bio-reactor through water inlet pipe in 2min, in the reaction of aerobic particle mud district, and the aerating apparatus aeration 30min that is provided with by the bottom.
2, utilize vacuum pump to draw water, adopt the method for intermittent suction by membrane module, i.e. 15min one-period, 10min draws water, 5min intermittently, the uninterrupted aeration of pump process, aeration time are 90min.
3, after aeration finishes, reactor carries out the quiet heavy of 1min, rising pipe III at reactor lower part enters reflux sedimentation tank with water afterwards, and the volume of each spoil disposal and backflow is 1/4th of a whole reactor, and the increase of quiet heavy time along with sludge concentration constantly reduces.
4, draining finishes to reflux by reflux pump behind the idle 5min, by filtration unit the mud of getting rid of is blocked in the reflux sedimentation tank during backflow, sewage then can come back in the reactor, and the volume of each spoil disposal and backflow is 1/4th of whole reactor; Finally, the sewage after the purification is discharged by vacuum pump through membrane module.
Embodiment 3
A kind of batch type aerobic particle sludge membrane bioreactor effluent treatment process is that the operational mode with sequence batch (realizes the aerobic sludge granulating in the column bio-reactor, by being immersed in the membrane module suction water outlet in the reactor.Membrane module is the tubular type hollow microfiltration membrane of being produced by film sky, Tianjin film company, and aperture 0.2 μ m is placed on 1/2nd of reactor naturally and highly locates.Water outlet is aspirated water outlet (took out 10 minutes, had a rest 5 minutes) by vacuum pump, keeps aeration in the exiting water process.Water inlet water pump and pneumatic pump operation are controlled by the time relay.Reactor is the synthetic glass post, and useful volume is 32L.
Concrete processing step is:
1, water pump is squeezed into treatment sewage the batch type aerobic particle sludge membrane bio-reactor through water inlet pipe in 10min, in the reaction of aerobic particle mud district, and the aerating apparatus aeration 90min that is provided with by the bottom.
2, utilize vacuum pump to draw water, adopt the method for intermittent suction by membrane module, i.e. 15min one-period, 10min draws water, 5min intermittently, the uninterrupted aeration of pump process, aeration time are 60min.
3, after aeration finished, reactor carried out the quiet heavy of 10min, and the rising pipe I on reactor top enters reflux sedimentation tank with water afterwards, and the increase of quiet heavy time along with sludge concentration constantly reduces.
4, draining finishes to reflux by reflux pump behind the idle 10min, by filtration unit the mud of getting rid of is blocked in the reflux sedimentation tank during backflow, sewage then can come back in the reactor, and the volume of each spoil disposal and backflow is 1/4th of whole reactor; Finally, the sewage after the purification is discharged by vacuum pump through membrane module.

Claims (1)

1. batch type aerobic particle sludge membrane bioreactor effluent treatment process is characterized in that concrete steps are as follows:
A, through water inlet pipe treatment sewage is squeezed into the batch type aerobic particle sludge membrane bio-reactor in 2-20min, the aerating apparatus aeration 30-90min that is provided with by the bottom by water pump;
B, utilize vacuum pump to draw water, adopt the method for intermittent suction by membrane module, i.e. 15min one-period, 10min draws water, 5min intermittently, the uninterrupted aeration of pump process, aeration time are 60-90min;
After C, aeration finished, reactor carried out the quiet heavy of 1-10min, at reactor middle part rising pipe water was entered reflux sedimentation tank afterwards, and the increase of quiet heavy time along with sludge concentration constantly reduces;
D, draining finish to reflux by reflux pump behind the idle 5-15min, by filtration unit the mud of getting rid of is blocked in the reflux sedimentation tank during backflow, sewage then can come back in the reactor, and the volume of each spoil disposal and backflow is 1/4th of whole reactor; Finally, the sewage after the purification is discharged by vacuum pump through membrane module.
CNB2007100149425A 2007-06-20 2007-06-20 The batch type aerobic particle sludge membrane bioreactor effluent treatment process Expired - Fee Related CN100560515C (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101898850B (en) * 2010-04-14 2013-02-27 中国环境科学研究院 Continuous-flow aerobic granular sludge membrane bioreactor used for treating berberine pharmaceutical wastewater
CN102153191B (en) * 2011-04-28 2012-03-28 浙江大学 Quick starting method for aerobic granular sludge reactor for treating difficultly degraded waste water
CN102674538B (en) * 2012-04-25 2014-07-16 王艳辉 Method for quickly granulating aerobic activated sludge in membrane bioreactor
CN103482782A (en) * 2013-04-03 2014-01-01 江苏夏航环境工程有限公司 Apparatus of processing ammonia-nitrogen wastewater by utilizing vacuum degassing film technology
CN103848497A (en) * 2013-07-04 2014-06-11 德和威(北京)环境工程有限公司 Device and method for treating waste water by cultivating and utilizing aerobic granular sludge
CN106186318B (en) * 2016-08-05 2019-02-15 青岛思普润水处理股份有限公司 Mud film composite S BR water treatment technology
CN107827227A (en) * 2017-11-06 2018-03-23 东莞市万科建筑技术研究有限公司 Granule sludge preparation method and domestic sewage processing method

Citations (3)

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Publication number Priority date Publication date Assignee Title
US20030132160A1 (en) * 2002-01-11 2003-07-17 Khudenko Boris M. Membrane biotreatment
CN1765771A (en) * 2005-09-08 2006-05-03 山东大学 Process for two-step type bioreactor for sludge decrement
CN1974439A (en) * 2006-12-07 2007-06-06 江南大学 Method of inhibiting membrane contamination of membrane bioreactor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030132160A1 (en) * 2002-01-11 2003-07-17 Khudenko Boris M. Membrane biotreatment
CN1765771A (en) * 2005-09-08 2006-05-03 山东大学 Process for two-step type bioreactor for sludge decrement
CN1974439A (en) * 2006-12-07 2007-06-06 江南大学 Method of inhibiting membrane contamination of membrane bioreactor

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