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Non-oxidative bactericidal algicide for circulating water and preparation method of algicide

A bactericidal algicide, non-oxidative technology, applied in the directions of fungicides, herbicides and algicides, botanical equipment and methods, etc., can solve the problems of low bactericidal rate, reduced bactericidal effect and corrosion of a single bactericide Achieve the effect of obvious killing and inhibition, fast sterilization and algae killing, and long sterilization duration.

Inactive Publication Date: 2022-01-04
SHANDONG TIANQING TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, regardless of the structure of the industrial circulating cooling water system, when the external conditions such as temperature, pH value, turbidity, flow rate, etc. change, especially when the circulating water operates under the condition of high concentration multiple, the water quality status will change. It is often in an unstable state, because the unstable water quality is the three major problems that cause serious circulating cooling water: corrosion, scaling, and microbial growth, especially the phosphorus-containing chemicals currently used by people, resulting in eutrophication of the water body and abnormal circulation of the circulating water system. The growth and reproduction of bacteria and algae will block the heat exchanger and pipeline, which will affect the heat exchange efficiency
However, the fungicides currently used are mainly single fungicides, which have a low bactericidal rate, and long-term use will cause organisms to develop drug resistance, resulting in reduced bactericidal effects

Method used

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  • Non-oxidative bactericidal algicide for circulating water and preparation method of algicide
  • Non-oxidative bactericidal algicide for circulating water and preparation method of algicide
  • Non-oxidative bactericidal algicide for circulating water and preparation method of algicide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of preparation method of non-oxidizing bactericidal algicide for circulating water comprises the following steps:

[0023] Step 1: Accurately weigh 4g of dithiocyanomethane and 10g of N,N-dimethylformamide into the reactor respectively, and stir evenly until the dithiocyanomethane is completely dissolved;

[0024] Step 2: Add 10g of isothiazolinone, 0.1g of copper sulfate, 10g of dodecyldimethylbenzyl ammonium chloride, and 1g of glutaraldehyde into the reactor in sequence, and stir for 15 minutes;

[0025] Step 3: Finally, add 64.9g of deionized water and stir at room temperature until the solution is clear to obtain the non-oxidative bactericidal algicide.

Embodiment 2

[0027] A kind of preparation method of non-oxidizing bactericidal algicide for circulating water comprises the following steps:

[0028] Step 1: Accurately weigh 5g of dithiocyanomethane and 14g of N,N-dimethylformamide into the reactor respectively, and stir evenly until the dithiocyanomethane is completely dissolved;

[0029] Step 2: Add 14g of isothiazolinone, 0.2g of copper sulfate, 10g of dodecyldimethylbenzyl ammonium chloride, and 2g of glutaraldehyde into the reactor in turn, and stir for 15min;

[0030] Step 3: Finally, add 54.8g of deionized water and stir at room temperature until the solution is clear to obtain the non-oxidative bactericidal algicide.

Embodiment 3

[0032] A kind of preparation method of non-oxidizing bactericidal algicide for circulating water comprises the following steps:

[0033] Step 1: Accurately weigh 6g of dithiocyanomethane and 16g of N,N-dimethylformamide into the reactor respectively, and stir evenly until the dithiocyanomethane is completely dissolved;

[0034] Step 2: Add 16g of isothiazolinone, 0.2g of copper sulfate, 12g of dodecyldimethylbenzyl ammonium chloride, and 3g of glutaraldehyde into the reactor in turn, and stir for 15 minutes;

[0035] Step 3: Finally, add 46.8g of deionized water and stir at room temperature until the solution is clear to obtain the non-oxidative bactericidal algicide.

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Abstract

The invention discloses a non-oxidative bactericidal algicide for circulating water and a preparation method of the non-oxidative bactericidal algicide. The non-oxidative bactericidal algicide comprises the following components by weight: 10 to 20 g of isothiazolinone, 0.1 to 0.3 g of copper sulfate; 10 to 15 g of dodecyl dimethyl benzyl ammonium chloride; 1 to 5g of glutaraldehyde; 4 to 8 g of methylene dithiocyanate; 10 to 20 g of N,N-dimethyl formamide; and the balance of water. The non-oxidizing sterilization algicide for circulating water has a higher sterilization effect and a better algae inhibition effect, is low in usage amount, high in sterilization and algae removal speed and long in sterilization duration time, and has obvious killing and inhibition effects on heterotrophic bacteria, iron bacteria, sulfate reducing bacteria and fungal algae.

Description

technical field [0001] The invention relates to the technical field of water treatment agent and its manufacture, in particular to a non-oxidative bactericidal algicide for circulating water and a preparation method thereof. Background technique [0002] Water is considered to be the most important resource, because water is not only a natural resource, but also an economic resource, a strategic resource, and the lifeblood of human existence. Industrial production is inseparable from water, and water system plays an important role in industrial production. Generally speaking, regardless of the structure of the industrial circulating cooling water system, when the external conditions such as temperature, pH value, turbidity, flow rate, etc. change, especially when the circulating water operates under the condition of high concentration multiple, the water quality status will change. It is often in an unstable state, because the unstable water quality is the three major probl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N59/20A01N35/02A01N47/48A01N43/80A01P3/00A01P1/00A01P13/00
CPCA01N59/20A01N35/02A01N47/48A01N43/80
Inventor 梁新新张留成徐旭东刘娅林刘月英高云峰苗吉宾郑萍谢泽新张宁
Owner SHANDONG TIANQING TECH DEV