MBR membrane assembly testing device

Abstract

The invention relates to an MBR membrane assembly testing device. The MBR membrane assembly testing device is used for flux test of an MBR membrane assembly, and comprises a main box body, a test control system arranged in the main box body, a sewage pool formed on the main box body and used for receiving external sewage, a clean water pool and a sewage overflow pool used for receiving excessive sewage in the sewage pool, The MBR membrane assembly testing device also comprises a MBR membrane assembly body fixed in the sewage pool, a water production system and a backwashing system respectivelycommunicated with the clean water pool and two ends of the MBR membrane assembly body, and a water supplementing system respectively communicated with the sewage pool and the sewage overflow pool.During water production operation, sewage in the sewage overflow pool is refluxed into the sewage pool through the watersupplementing system, and water production, backwashing and water replenishing operation of the water production system, the backwashing system and the water supplementing system are all controlled by the test control system. According to the technical scheme, the attenuation rate of the flux of the MBR membrane assembly can be accurately measured under the condition of long-time operation, the accurate effective working duration is obtained accordingly, and the effective working duration of the MBR membrane assembly body can be prevented from being shortened.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to an MBR membrane module test device. Background technique [0002] MBR, also known as membrane bioreactor, is a new type of efficient sewage treatment equipment that combines membrane separation technology with traditional sewage biological treatment process. MBR process mainly uses membrane separation technology to separate active bacteria and macromolecules in sewage. The interception of organic substances can effectively achieve solid-liquid separation, greatly improve the quality of effluent water, and can reduce the volume of the reactor. Among them, the MBR membrane module is the most critical component. When in use, negative pressure is generated inside it so that water flows from its surface. The micropores lead into the inner pipe, while the suspended solids in the sewage are blocked outside to achieve the purpose of filtration. Its main function is to in...

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Problems solved by technology

[0004] After the current MBR membrane module lasts for a certain test time, because the inner tube of the MBR membrane module will generate negative pressure, the negative pressure will make the suspended solids adhere to the outer surface of the MBR membrane module, causing the outer surface for water to pass through slightly. Pore ​​blockage seriously shortens the effective working time of the MBR membrane module, and during the test, due to the sealing of the MBR membrane module, the user cannot know the specific flux of the MBR membrane module, that is, whether the MBR membrane module has reached the effective The working time is long. For this, the entire MBR membrane module is disassembled to measure the flux, but the number of MBR membrane modules used for the test is large, and it is very inconvenient to disassemble one by one; or it is estimated by the intuition and experience of the experimenter, which leads to the test result Extremely inaccurate, unable to correctly understand the exact effective working hours of the tested MBR membrane modules

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