Reclaimed water reuse membrane acidic cleaning agent

Abstract

The present invention provides a reclaimed water reuse membrane acidic cleaning agent, which is prepared from the following components by mass: 10-25% of polybasic acid, 1-5% of sulfamic acid, 1-5% of sodium chloride, 1-15% of an ammonium salt, 5-25% of organic phosphoric acid, 1-8% of a sterilization agent, and the balance of water. The reclaimed water reuse membrane acidic cleaning agent of the present invention can provide advantages of excellent cleaning effect, wide cleaning range and cleaning agent consumption saving during membrane cleaning.

Description

technical field [0001] The invention relates to the cleaning field of reverse osmosis membranes, in particular to an acidic cleaning agent for reclaimed water reuse membranes. Background technique [0002] The reverse osmosis membrane is the core component to realize reverse osmosis. It is an artificial semipermeable membrane with certain characteristics made by simulating biological semipermeable membrane. Generally made of polymer materials. Such as cellulose acetate film, aromatic polyhydrazide film, aromatic polyamide film. The diameter of surface micropores is generally between 0.5 and 10nm, and the permeability is related to the chemical structure of the membrane itself. Some polymer materials have good repellency to salt, but the water penetration rate is not good. Some polymer materials have more hydrophilic groups in their chemical structure, so the water penetration rate is relatively fast. Therefore, a satisfactory reverse osmosis membrane should have an appro...

AI Technical Summary

Problems solved by technology

However, the acid cleaning agents used in general systems are hydrochloric acid and citric acid, which cannot meet the cleaning needs of many types of pollutants and serious pollution in the reclaimed water reuse system.

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