Separator system of hollow-fibre membrane in extermal pressure

Abstract

A hollow fibre membrane separation system is composed of membrane module, circulating tank and connecting pipeline. It features that the liquid inlet pipe is connected between circulating tank and membrane module for supplying raw material to membrane, and a working pump and the raw water flow controller and one-way chemical applying valve for washing said membrane module are installed to said liquid inlet pipe.

Description

technical field [0001] The invention relates to a membrane separation technology, in particular to an external pressure hollow fiber membrane device. Background technique [0002] With the improvement of people's living standards, people's requirements for drinking water continue to increase, so-called pure water, space water or purified water has entered people's daily life. Moreover, production and industrial water, such as biochemical, pharmaceutical, food, seasoning and other fields, have higher and higher requirements for water purification. In recent years, people have developed microfiltration and ultrafiltration membrane technologies for water purification, which are meeting this need and have achieved good practical results. Among them, external pressure hollow fiber membranes are most widely used. This is because the external pressure hollow fiber membrane (hereinafter referred to as the membrane) has the largest filling area per unit volume, can remove various s...

AI Technical Summary

Problems solved by technology

But it still has shortcomings: the external pipeline design of the membrane module in the membrane device is not perfect

[0005] The disadvantages of the above cleaning are: the original process is backwashing and dosing, because the medicine itself is not clean, it pollutes the filtrate side of the membrane, thus affecting the quality of the produced water, and it is difficult to purify the medicine itself

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