Split type film biological reactor and water treatment method

A technology of membrane bioreactor and bioreactor, applied in the direction of biological water/sewage treatment, sustainable biological treatment, chemical instruments and methods, etc., can solve the problem of high energy consumption in operation, reduce water cycle energy consumption, and be easy to clean , the effect of small energy
CN1358675AInactive Publication Date: 2002-07-17RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
Publication Date
2002-07-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention provides a split type membrane biological reactor, including grizzly screen or screen mesh, regulating reservior, biological reactor and membrane filter tank, and is characterized by that the bottom portion of membrane filter tank is mounted on the foundation or supporting frame, the static water levels of membrane filter tank and biological reactor are identical, and the mounting depth of air blast pipe and membrane flushing air blast pipe in the biological reactor and in the membrane filter tank is in the water layer of range from water surface of waste depth with 2.5m. Said invented membrane biological reactor possesses the advantage of low energy consumption for operation.
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Description

technical field

[0001] The invention belongs to the technical field of membrane bioreactors, in particular to split membrane bioreactors. Background technique

[0002] A known split-type membrane bioreactor is a cross-flow membrane bioreactor system, which is composed of a bioreactor unit and a cross-flow membrane separator. It mainly has the technical problem of high energy consumption per unit of water treatment. In order to maintain a stable water permeability, cross-flow membrane separators require higher membrane surface flow to generate greater shear force or turbulent flow to limit the thickness of the filter cake layer. The higher membrane surface flow requires a larger circulating water pump. The working pressure provided by the pump is usually 100-150kPa. The ratio of the circulating water volume to the permeable water volume of the membrane separator is as high as 100-600:1, and the circulating water flow rate is generally 1- 7m / s, generally greater than 2m / s. S...

Claims

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