Online-cleaning MBR (Membrane Bioreactor) membrane set device

Abstract

The invention relates to an online-cleaning MBR (Membrane Bioreactor) membrane set device which is characterized by being capable of on-line cleaning. A membrane component container (1) is placed in a membrane bioreaction tank (2); a water inlet (3) is arranged at the lower end of the membrane component container (1), and a water outlet (4) is arranged on a side upper surface of the membrane component container (1); a curtain type membrane component or bundle type membrane component (5) is placed in the membrane component container (1); an aeration device (6) is arranged below the membrane component, and an opening above the container is higher than the liquid level of the membrane bioreaction pool; during the running process of the membrane component, the water inlet and the water outlet are both opened; generated water is discharged by a water pump (7); when the membrane component (5) needs to be cleaned, the water inlet (3) and the water outlet (4) are closed; the sewage in the membrane set device is pumped out by a sewage pump (8) and flows back to the membrane bioreaction tank (2); clean water is pumped in by a cleaning pump (9); a membrane filament is cleaned by a leaching device (10); a drug is dosed by a dosing pump (11), thereby soaking and cleaning; and cleaning liquid is discharged and treated by a pump (12). The cleaning process is free from hoisting and moving membrane components and is especially suitable for a mobile MBR integrating treatment device.

Description

technical field [0001] The invention relates to an MBR membrane unit for treating sewage by using a hollow fiber filter membrane. Specifically, the invention relates to an online-cleanable MBR membrane used in sewage treatment and reclaimed water reuse in the fields of environmental protection, energy, chemical industry, etc. Bioreactor. Background technique [0002] Membrane Bioreactor (MBR) technology is a combination of biological reaction and membrane separation technology, using membrane as a separation medium instead of conventional gravity precipitation solid-liquid separation to obtain effluent, and can change the reaction process and improve the reaction efficiency of sewage Approach. The membrane unit is a basic water treatment unit assembled from membrane modules, gas distribution devices, water collection devices, frames, etc., and placed in a biological reaction tank for solid-liquid separation. MBR is a new type of sewage treatment technology, which replaces ...

AI Technical Summary

Problems solved by technology

For the submerged membrane module, the cleaning after the module is polluted requires hoisting equipment to lift the membrane unit out of the membrane bioreaction tank for flushing, and a cleaning tank needs to be added. For fixed sewage plants, there are still certain ways to solve the problem of cleaning. It is very inconvenient to clean the mobile integrated MBR membrane unit equipment

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