Defoaming device of mbr membrane bioreactor

Abstract

The invention relates to the technical field of sewage treatment, in particular to a defoaming device for an MBR membrane bioreactor. There is a flow port at the center, a through hole is opened in the middle area of ​​the partition plate, the partition plate is fixedly connected with the lower end of the guide pipe at the through hole, the box body is installed with a membrane module above the partition plate, and the box body is above the membrane module and the box body. A gas area is formed between the inner walls. The upper port of the guide tube is located in the gas area. A negative pressure unit for extracting the gas in the gas area is installed outside the box. The negative pressure unit communicates with the gas area, and the box is under the partition plate Install stirring unit, aeration pipeline and water inlet. The defoaming device of this MBR membrane bioreactor reduces the gas content in the liquid at the membrane module, prevents the membrane module from being affected by gas, and at the same time eliminates the foam on the liquid surface and prevents the gas from being affected. The use of MBR membrane bioreactor treatment systems.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a defoaming device for an MBR membrane bioreactor. Background technique [0002] Membrane Bioreactor (MBR for short) is a new and efficient sewage treatment technology that combines membrane separation and biological treatment. Membrane bioreactor is mainly composed of membrane module and bioreactor. , the integrated membrane bioreactor is to place the membrane module inside the bioreactor, the water enters the membrane bioreactor, most of the pollutants are removed by the activated sludge in the mixed liquid, and then filtered by the membrane under the action of external pressure Water outlet, this form of membrane-bioreactor relies on pumping water out, the energy consumption is relatively low, and the floor space is more compact than the split type. In recent years, it has received special attention in the field of water treatment, but when the gas in the reaction box...

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Problems solved by technology

[0003] For the deficiencies of the prior art, in order to overcome the defects of the prior art, the object of the present invention is to provide the defoaming device of the MBR membrane bioreactor to solve the problem that the gas affects the use of the MBR membrane bioreactor treatment system

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