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Organic sulfur sterilization algicide

A sulfur sterilization and algaecide and organic technology, which is applied in the field of organic sulfur sterilization and algaecide, can solve problems such as poor stability and dispersion performance, and achieve the effects of improving sterilization and algaecide performance, improving sterilization and algae killing effect, and optimizing concentration.

Pending Publication Date: 2021-10-26
常州市武进盛源化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to improve the defect that the existing dithiocyanomethane bactericidal algicide has poor stable dispersion performance, the invention provides an organic sulfur bactericidal algaecide, which adopts the following technical scheme:

Method used

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  • Organic sulfur sterilization algicide

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0035] A dithiocyanomethane-coated granule:

[0036] (1) Take 200g of dithiocyanomethane and grind it, sieve to collect dithiocyanomethane with a particle size of 10-15μm and add it to 5kg of deionized water, ultrasonically disperse and collect dithiocyanomethane dispersion slurry;

[0037] (2) Add 1 kg of dithiocyanomethane dispersion slurry to 8 kg of 1mol / L chitosan solution, stir and mix to collect the mixed slurry;

[0038] (3) Add 0.1kg of epichlorohydrin and 0.6kg of formaldehyde to 4kg of mixed slurry at 55°C, stir and mix, adjust the pH to 12 with 0.1mol / L sodium hydroxide solution, and use deionized water after stirring to react Rinse until the washing solution is neutral, and then dry at 60° C. to prepare dithiocyanomethane-coated particles.

preparation example 2

[0040] A dithiocyanomethane-coated granule:

[0041](1) Take 200g of dithiocyanomethane and grind it, sieve to collect dithiocyanomethane with a particle size of 10-15μm and add it to 6.5kg of deionized water, ultrasonically disperse and collect dithiocyano Methane dispersion slurry;

[0042] (2) Add 1kg of dithiocyanomethane dispersion slurry to 9kg of 1mol / L chitosan solution, stir and mix to collect the mixed slurry;

[0043] (3) Add 0.1kg of epichlorohydrin and 0.7kg of formaldehyde to 4.5kg of mixed slurry at 57°C, stir and mix and adjust the pH to 12 with 0.1mol / L sodium hydroxide solution, and use deionized Rinse with water until the washing solution is neutral, and then dry at 60° C. to prepare dithiocyanomethane-coated particles.

preparation example 3

[0045] A dithiocyanomethane-coated granule:

[0046] (1) Take 200g of dithiocyanomethane and grind it, sieve to collect dithiocyanomethane with a particle size of 10-15μm and add it to 8kg of deionized water, ultrasonically disperse and collect dithiocyanomethane dispersion slurry;

[0047] (2) Add 1kg of dithiocyanomethane dispersion slurry to 10kg of 1mol / L chitosan solution, stir and mix to collect the mixed slurry;

[0048] (3) Add 0.1kg of epichlorohydrin and 0.8kg of formaldehyde to 5kg of mixed slurry at 60°C, stir and mix and adjust the pH to 12 with 0.1mol / L sodium hydroxide solution, stir and react with deionized water Rinse until the washing solution is neutral, and then dry at 60° C. to prepare dithiocyanomethane-coated particles.

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Abstract

The invention relates to the technical field of water treatment, and particularly discloses an organic sulfur sterilization algicide. The organic sulfur sterilization algicide is prepared from the following substances in parts by weight: 25-30 parts of a dithiocyano-methane coated particle, 6-8 parts of a surfactant, 1-2 parts of a thickening agent, 3-5 parts of a thixotropic agent, and 120-150 parts of water, wherein the dithiocyano-methane coated particle comprises a coating shell and a dithiocyano-methane particle inner core, and the coating shell is a chitosan coating layer. The chitosan coating layer coating the surface of the dithiocyano-methane particle can form a good dispersion structure in water, so the dispersion stability of the dithiocyano-methane particle is improved; and when the dithiocyano-methane particle is effectively dispersed in liquid needing to be treated, cytoplasm with anions in bacteria or algae cell bodies is adsorbed and flocculated, so the algae removal and sterilization effects of the single organic sulfur sterilization algicide are improved.

Description

technical field [0001] The invention belongs to the technical field of water treatment, in particular to an organic sulfur bactericide and algicide. Background technique [0002] The massive reproduction of microorganisms will bring many hazards to the circulating cooling water system. For example, the slime produced by microbial reproduction will not only reduce the efficiency of the cooling water system, but also block the equipment, directly affecting production efficiency. At the same time, due to the massive reproduction of microorganisms, it is easy to form pitting corrosion on the surface of the equipment, which will lead to equipment perforation and enterprise shutdown for maintenance. [0003] The current solution to such problems is to add fungicides. There are many kinds of bactericidal and algicidal agents, among which organic sulfur bactericidal and algicidal agents are widely used due to their common advantages of high efficiency, low toxicity, broad-spectrum ...

Claims

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Application Information

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IPC IPC(8): A01N47/48A01N25/26A01N59/20A01N43/16A01N25/04A01N65/08A01N65/06A01P13/00A01P1/00
CPCA01N47/48A01N25/26A01N59/20A01N43/16A01N25/04A01N65/08A01N65/06A01N65/00
Inventor 刘叶姝刘冬奇张炳刘中伟马永芳
Owner 常州市武进盛源化工有限公司
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