High-efficiency sterilization composition of circulating water system

Abstract

A high-efficiency sterilization composition of a circulating water system comprises the following ingredients by weight percent: 50-90% of a chitosan N-hydroxypropyl polyoxyethylene ether dialkyl halide, 1-10% of a releasing stuck agent and the balance being deionized water. In a structural formula of the chitosan N-hydroxypropyl polyoxyethylene ether dialkyl halide, n refers to integer from 100 to 600, m refers to integer from 10 to 30, R refers to -CH3, -CH2CH3, -(CH2)2CH3, -(CH2), CH3 or -CH2C5H6, and X refers to Cl, Br or I. The composition disclosed by the invention has the advantages of being safe and environmentally-friendly, biodegradable, free from toxi and low in drug resistance, and can be used for performing rapid penetration, sterilization and peeling on intractable slime in a pipeline, so as to enable the slime to be dispersed in water and discharged out of the system with water flow.

Description

technical field [0001] The invention relates to a water treatment agent, in particular to a high-efficiency bactericidal composition for a circulating water system. Background technique [0002] In order to achieve the sustainable and optimal development of water resources, the treatment and recycling of industrial water is necessary, and the pollution of industrial circulating water systems is mainly caused by microorganisms. On the one hand, microorganisms cause direct pollution of water bodies; on the other hand, microorganisms in industrial circulating water bring great harm to equipment. The large amount of slime it produces will cause corrosion in circulating water, and the slime covering the metal surface will produce The difference in oxygen concentration corrodes the battery, iron is dissolved and corroded, and the accumulation of slime is prone to scaling, hindering heat transfer, and seriously blocking the pipeline. Therefore, the control and treatment of microor...

AI Technical Summary

Problems solved by technology

[0003] At present, the most used fungicides in China are oxidative fungicides chlorine and bromine fungicides. These series of fungicides are prone to produce carcinogenic chloroform, and the discharge of bromine products will cause secondary pollution to water.

Another type of fungicide is non-oxidizing, and the most used ones are isothiazolinone, glutaraldehyde, and quaternary ammonium salt. Among them, isothiazolinone is sensitive to sulfide and is invalid to sulfuric acid reducing bacteria; the synthesis process of glutaraldehyde is relatively Dangerous; quaternary ammonium salts have low toxicity, low cost, and are widely used against bacteria and algae, but they are easy to foam, and bacteria are prone to drug resistance after long-term use