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Split-type tube type dynamic membrane bioreactor

A bioreactor and dynamic membrane technology, which is applied in the research and development and application fields of membrane bioreactors, can solve the problems of high price of membrane modules, hindered flux attenuation, etc. Effect

Inactive Publication Date: 2009-08-12
RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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Problems solved by technology

[0002] Membrane technology has attracted widespread attention in the water treatment industry because of its reliable effluent quality, simple and convenient operation methods, etc. However, problems such as expensive membrane modules and flux attenuation caused by membrane fouling have seriously hindered the promotion and application of membrane technology.

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  • Split-type tube type dynamic membrane bioreactor

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Embodiment 1

[0016] Will contain COD 50 ~ 425mg / L, BOD 5 30~240mg / L, ammonia nitrogen 60~120mg / L, / SS 20~100mg / L domestic sewage enters the split tubular dynamic membrane bioreactor, the dissolved oxygen is 3.0mg / L, the blowing volume is 0.4 m 3 / hr, temperature 12-29°C, pH 6.5-8.2, the system runs stably for 70 days, the system achieves a good design cycle state, the sludge concentration of the biological unit can reach 2-6g / L, and the tube of the membrane unit The dynamic membrane is basically formed after running for 2 weeks, and the dynamic membrane maintains stable operation and has a high membrane flux of 50L / m 2 .h and the processing effect is good.

[0017] The COD value of the system effluent varies between 30 and 100mg / L, and is generally stable below 50mg / L. 5 The value fluctuates between 10-30mg / L, the ammonia nitrogen is stable at 10-30mg / L, the turbidity is stable below 5NTU, and the effluent water quality meets the secondary standard of "Pollutant Discharge Standards for ...

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Abstract

The present invention relates to a body-separated tubular dynamic membrane biological reactor. It mainly is formed from biological unit, aeration system, membrane unit, suction system and automatic control system. Said invention also provides the working principle of said biological reactor.

Description

technical field [0001] The invention belongs to the technical field of membrane bioreactor research and development and application, in particular to a split tubular dynamic membrane bioreactor. Background technique [0002] Membrane technology has attracted widespread attention in the water treatment industry because of its reliable effluent quality, simple and convenient operation methods, etc. However, problems such as expensive membrane modules and flux attenuation caused by membrane fouling have seriously hindered the promotion and application of membrane technology. . [0003] In order to solve the above problems, various studies have been carried out at home and abroad, and the concept of dynamic membrane technology has been proposed. Dynamic membrane refers to the biomass layer formed on the surface of the membrane matrix (porous carrier) by precoating agents or microorganisms and their metabolites. This biomass layer has a retention effect similar to that of tradit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/02C02F3/10
CPCY02W10/10
Inventor 樊耀波李刚朱小龙吴琳琳董春松
Owner RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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