Highly efficient composite bactericidal algaecide and preparation method

A bactericidal and algaecide, high-efficiency technology, applied in the directions of fungicides, herbicides and algaecides, botanical equipment and methods, etc.

Active Publication Date: 2009-10-07
青岛天兰环境股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the problem of poor use effect of existing biocides, the present invention proposes a compound high-efficiency bactericide and algicide and its preparation method

Method used

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  • Highly efficient composite bactericidal algaecide and preparation method
  • Highly efficient composite bactericidal algaecide and preparation method
  • Highly efficient composite bactericidal algaecide and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Under normal temperature and pressure, mix 15Kg simazine (chemical name is 2-chloro-4,6-diethylamino-1,3,5 triazine) and 15Kg methanol, add 40Kg isothiazoline to the above solution Ketone, stir for half an hour, then add 30Kg asymmetric diquaternary ammonium salt to the above solution, stir for half an hour, and make a compound high-efficiency bactericide and algicide with a solid content of 20-40%. This formula has the strongest foaming ability.

[0028] In this embodiment, good field test results have been obtained in many power plants such as Shiliquan Power Plant and Suzhou Power Plant, and the dosing method is intermittent impact dosing.

Embodiment 2

[0030] Present embodiment is by weight ratio, is made up of 40Kg dodecyl dimethyl benzyl ammonium chloride, 30Kg isothiazolinone, the simazine of 20Kg, the ether of 10Kg, and the solid content of composite efficient bactericidal algicide is 20 -40%, its preparation method is similar to embodiment 1, this does not go into details, this formula foaming ability is medium.

[0031] This embodiment has achieved good field test results in Shouguang Iron and Steel Works, and the dosing method is continuous dosing.

Embodiment 3

[0033] The present embodiment is by weight ratio, by non-foaming quaternary ammonium salt 20Kg, isothiazolinone 50Kg, the mixture of 20Kg ethylene glycol and methyl alcohol, the simazine of 10Kg, mixes, and the solid content of compound efficient bactericidal algicide is 20 -40%, its preparation method is similar to embodiment one, this does not go into details, this formula has no foaming ability.

[0034] This example has achieved good field test results in Baiyanghe Power Plant, and the dosing method is intermittent impact dosing.

[0035] The use effect of the present invention is illustrated by the following test data:

[0036] Table 1, according to the compound high-efficiency bactericidal algicide of embodiment one to embodiment three to the killing effect of heterotrophic bacteria at different times

[0037] test

concentration / time

4h

12h

24h

48h

Embodiment one

100ppm

99.7

96.32

90.16

78.6

...

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Abstract

The invention discloses a highly efficient composite bactericidal algaecide and a preparation method thereof, which can solve the problem that the existing biocide has poor application result. The invention adopts the following technical proposal: the bactericidal algaecide consists of the following components by weight: 20-50 percent of quaternary ammonium salt, 20-50 percent of thiazolinone, 10-30 percent of simazine and 5-20 percent of organic solvent. The highly efficient composite bactericidal algaecide can be prepared to a bactericidal algaecide with different foamability according to customer needs and has obvious sterilization and algae removal effects on the hazards of bacteria, fungi, algae and legionnella in an opened recirculation cooling water system.

Description

technical field [0001] The invention belongs to the technical field of production and application of water treatment agents, and in particular relates to a composite high-efficiency bactericidal algicide and a preparation method thereof. Background technique [0002] Microbial replenishment water containing bacteria, fungi, and algae continuously enters the circulating cooling water system. At the same time, the cooling water sprayed from the cooling tower captures a large number of microorganisms from the air that meets the countercurrent and enters the cooling water system. The temperature is usually designed between 32-42°C, and this temperature range is particularly conducive to the growth of bacteria, fungi, and algae. Process media in the cooling water system (such as oil from refineries, synthetic ammonia from nitrogen fertilizer plants) leak into the cooling water The system provides a nutrient source for the microorganisms in it, and a large amount of oxygen is diss...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/80A01N43/70A01N33/12A01P1/00A01P13/00A01P3/00C02F1/50
Inventor 于治津陈强姜玉霞王风仑
Owner 青岛天兰环境股份有限公司
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