Integral type film biological reactor

A membrane bioreactor, bioreactor technology, applied in the direction of sustainable biological treatment, biological water/sewage treatment, chemical instruments and methods, etc., can solve the problems of easy fiber breakage, increased cleaning difficulty, unstable water outlet, etc. To achieve the effect of prolonging the life of the membrane, reducing the amount of aeration and increasing the cost

Inactive Publication Date: 2010-08-18
上海膜达克环保工程有限公司
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  • Abstract
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Problems solved by technology

However, in practical engineering applications, hollow fiber membranes have the following disadvantages: 1. The fibers are easy to break; Easy to be blocked by sludge in the reaction tank
After clogging, the flux of the membrane drops sharply, and the water outlet is unstable, which may easily cause fiber breakage and increase the difficulty of cleaning
[0004] Therefore, membrane clogging is the main obstacle for the engineering application of MBR process

Method used

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  • Integral type film biological reactor
  • Integral type film biological reactor
  • Integral type film biological reactor

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Embodiment Construction

[0018] As shown in Figure 1, the integrated membrane bioreactor of the present invention includes a bioreactor 1 and a hollow fiber membrane module 2, and the hollow fiber membrane module 2 is vertically installed in the bioreactor 1, and its lower end 23 and membrane wire 22 Most of them are all submerged in water, and the suction end 21 that it links to each other with the suction pump 3 is located above the water surface 10, and a section of membrane silk near the suction end 21 just exposes the water surface like this. Since a part of the membrane filament is exposed to the air, the suction inside the hollow membrane filament will suck the air into the membrane filament, resulting in an evacuation phenomenon. For this reason, the surface part of the membrane filament exposed to the air must be sealed, and the present invention is provided with a sealing layer outside the membrane filament, and the sealing layer needs to extend below the water surface 10 .

[0019] As shown...

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Abstract

The invention discloses an integral membrane bioreactor which consists of a bioreactor and a hollow fiber membrane component, wherein, the hollow fiber membrane component consists of membrane filaments and a pumping end; the hollow fiber component is vertically arranged in the bioreactor; the pumping end is positioned above the water level of the bioreactor; the outer surface of a section of membrane filaments, which is near to the pumping end, is covered with a sealing layer; and the sealing layer extends below the water level, and can be a bushing, a sealing coating layer and the like. The invention has the advantages of little possibility of membrane blockage generation, long service life and low running cost.

Description

technical field [0001] The invention relates to a water treatment device, in particular to a membrane bioreactor. Background technique [0002] The existing membrane bioreactor (MBR) process mainly uses a microporous membrane with a pore size of 0.1 micron to separate the activated sludge sludge-water mixture after the biological reaction to achieve the purpose of water purification. MBR includes membrane modules and bioreactors. According to membrane types, it can be mainly divided into two types: external type and submerged type. Among them, submerged type is the main application form, accounting for more than 90% of actual engineering cases. [0003] In the submerged reactor, it is divided into two types: hollow fiber membrane and flat membrane. Due to the cost advantage, the hollow fiber membrane occupies most of the application cases and is the main application form of the membrane bioreactor MBR process. However, in practical engineering applications, hollow fiber mem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/10C02F1/44
CPCY02W10/10
Inventor 向阳
Owner 上海膜达克环保工程有限公司
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