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Mixed growth-type membrane bioreactor system

A membrane bioreactor, reactor technology, applied in biological water/sewage treatment, chemical instruments and methods, water/sludge/sewage treatment, etc. Strong impact load capacity and good biodiversity

Inactive Publication Date: 2017-10-03
张国闽
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a mixed growth membrane bioreactor system that can overcome the shortcomings of membrane bioreactor membrane components that are easy to foul, improve membrane flux, and delay membrane operation cycle

Method used

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  • Mixed growth-type membrane bioreactor system

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] as attached figure 1 The mixed growth membrane bioreactor system shown includes anaerobic baffled reactor, mixed growth membrane bioreactor (HG-MBR) and excess sludge system from front to back; treated by anaerobic baffled reactor The treated sewage flows into the mixed-growth membrane bioreactor for further treatment, and an overflow weir 4 is provided between the anaerobic baffle reactor and the mixed-growth membrane bioreactor. The excess sludge system includes a sludge pump 11 and a sludge treatment pipeline. Part of the sludge generated by the mixed growth membrane bioreactor is returned to the anaerobic baffle reactor through the sludge pump 11, and the rest is disposed of as excess sludge.

[0023] The anaerobic baffle reactor includes a pool body, the pool body is provided with a plurality of folded plates 2, and the folded plates 2 divide the pool body...

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Abstract

The invention discloses a mixed growth-type membrane bioreactor system. The system orderly comprises an anaerobic baffled reactor and a mixed growth-type membrane bioreactor from front to back. The mixed growth-type membrane bioreactor comprises a biological membrane process reactor and a membrane bioreactor from front to back. The system also comprises an excess sludge system. Through the excess sludge system, a part or all the sludge produced by the mixed growth-type membrane bioreactor is returned into the anaerobic baffled reactor. The mixed growth-type membrane bioreactor combines advantages of the biological membrane process reactor and the membrane bioreactor. The anaerobic baffled reactor is arranged in the front part. The system is complete, has strong impact load, guarantees pollution removal efficiency, reduces membrane pollution, prolongs a membrane operational cycle, saves energy, has wide applicability and can be used for urban sewage and industrial sewage treatment.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a mixed growth membrane bioreactor system used for urban and industrial sewage treatment. Background technique [0002] Membrane bioreactor (MBR) technology is a sewage treatment technology that combines membrane technology and biodegradation. Compared with the traditional activated sludge treatment process, MBR has the following advantages: compact structure, small footprint, convenient operation and management; high effluent quality, high removal rate for SS, organic matter, virus and bacteria; strong anti-bacteria Shock load capacity, etc. However, the core components of MBR are membrane modules, which mostly use organic or inorganic membranes, which are expensive, and the membranes are easily covered by pollutants during operation, resulting in membrane fouling, which restricts the further widespread use of MBR. [0003] The biofilm method is a method of treating organic sew...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30
CPCC02F3/301
Inventor 杨飞张国闽周梅阳宋祖威
Owner 张国闽
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