Efficient compound sterilizing agent for circulating water system

Abstract

The invention discloses an efficient compound sterilizing agent for a circulating water system, belonging to the technical field of industrial circulating water treatment. The efficient compound sterilizing agent is characterized in that a quaternary ammonium salt easy to foam is replaced with an environment-friendly quaternary ammonium salt which is difficult to foam and is easy to biodegrade and an assistant is replaced with isothiazolinone with high degrading speed. The efficient compound sterilizing agent comprises the following raw materials and components in percentage by weight: 20-30 percent of glutaraldehyde, 30-40 percent of quaternary ammonium salt, 10-20 percent of isothiazolinone and 20-30 percent of deionized water. A production method of the efficient compound sterilizing agent comprises the following process steps of: 1, adding the glutaraldehyde with the content of active materials of 15 percent and the quaternary ammonium salt into a reaction kettle to be stirred for 5-10 minutes at normal temperature; 2, adding the isothiazolinone with the content of active materials into the reaction kettle to be stirred for 10-15 minutes; and 3, finally, adding the deionized water into the reaction kettle to be stirred for 10-15 minutes to obtain a finished product. The efficient compound sterilizing agent has the advantages of high sterilizing and algae killing speed, less consumption, and no foaming; and used materials are easy to biodegrade, thus the efficient compound sterilizing agent is beneficial to industrial application.

Description

technical field [0001] The invention belongs to the technical field of industrial circulating water treatment and relates to a high-efficiency composite bactericide. Background technique [0002] Bactericide is a very common water treatment chemical, mainly used in circulating cooling water systems. Due to the special ecological environment of the circulating cooling water system, microorganisms are easy to multiply in it, and at the same time, the large-scale reproduction of microorganisms will also produce a large amount of microbial slime in the circulating water system. The large-scale reproduction of microorganisms and the slime produced during the reproduction will cause the cooling water quality to deteriorate sharply, the corrosion and scale inhibitors will fail, and it will cause corrosion of metal equipment in the cooling water system. Normal production poses a threat. In order to avoid this kind of situation, the most direct way is to add fungicides to control th...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of high-efficiency compound fungicide for circulating water system, to solve the existing technology product in a large number of Ca in circulating water 2+ , Mg 2+ 、Al 3+ and Fe 2+ When metal ions are used, the biocidal effect of quaternary ammonium salts will be reduced, so they cannot be used together with chlorophenol biocides, and should not be used together with anionic surfactants. Long-term use will easily cause microbial resistance, increase the dosing concentration, increase water treatment costs, and easily Foaming, often used together with defoamers, not conducive to industrial production, easy to cause environmental pollution and other problems

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