Novel immersion ultrafilter apparatus

Abstract

The invention provides a novel immersion ultrafilter apparatus. The novel immersion ultrafilter apparatus comprises a main body, an outside prefilter unit, a membrane assembly filter unit, a water outlet pipeline and an air pushing unit; the outside prefilter unit is arranged on the sidewall of the main body; the membrane assembly filter unit is arranged in the main body, and is connected with the water outlet pipeline; the air pushing unit is connected with the bottom of the main body; and the bottom of the main body is provided with an air valve, and the bottom of the main body is provided with a waste release valve. The apparatus has the advantages of compact structure, small occupied area, use convenience, flexible operation, low treatment cost, high outlet water quality, wide application range of inlet water, and good popularization application prospect.

Description

technical field [0001] The invention belongs to the field of water treatment, in particular to a novel submerged ultrafiltration device and method. Background technique [0002] At present, the ultrafiltration membrane filtration process is widely used in the field of water treatment, and the submerged ultrafiltration membrane process has attracted attention because of its good adaptability to the existing process transformation. There are mainly two types of submerged ultrafiltration membrane modules: curtain type and column type. The main application form is to place the membrane module directly in the membrane tank and form filtration through the suction of the pump. In order to ensure the service life of the membrane and avoid the pollution of the ultrafiltration membrane, it is often necessary to pass the influent water through pretreatment measures such as security filters before entering the membrane pool. [0003] In practical applications, in order to make full use...

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Problems solved by technology

[0003] In practical applications, in order to make full use of the hydraulic retention time of the membrane pool, it is often necessary to add certain water treatment chemicals and materials (such as coagulants, oxidants, and powdered activated carbon) in the membrane pool to improve the basic water quality of the ultrafiltration water and obtain It has a better treatment effect, but it also brings a significant increase in the filtration load of the ultrafiltration membrane. It is often necessary to ensure the water flow of the ultrafiltration through violent aeration and agitation, but the application results are still not ideal, which is easy to cause Membrane damage and membrane fouling

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