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Composite bactericidal and algaecidal agent and bactericidal and algaecidal method

A technology for composite oxidation of bactericidal and algicidal agents and bactericidal and algicidal agents, which is applied in the direction of herbicides, algicides, biocides, biocides, etc. Problems such as complicated process, to achieve the effect of improving the effect of sterilization and algae killing, convenient operation, and simple source of raw materials

Active Publication Date: 2018-12-14
CHENGDU XINGRONG RENEWABLE ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its treatment cost is higher than that of oxidative bactericide and algicide, and it is easy to cause environmental pollution, and microorganisms in water are prone to produce drug-resistant forms
In addition, there are some compound modified bactericides and algicides with more ingredients, and the preparation process is correspondingly complicated, which is not suitable for large-scale application, and the cost is relatively high.

Method used

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  • Composite bactericidal and algaecidal agent and bactericidal and algaecidal method

Examples

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Effect test

Embodiment 1

[0032] A method for sterilizing and algae-killing utilizing a composite bactericidal algae-killing agent, comprising the following steps:

[0033] A. Mix dodecyldimethylbenzyl ammonium chloride and 5-chloro-2-methyl-4-isothiazolin-3-one in a mass ratio of 9:1, and stir at room temperature for 5 minutes to prepare Composite non-oxidative bactericide and algicide;

[0034] B. Mix sodium hypochlorite and sodium bromide in a mass ratio of 200:1, specifically: in the case of constant stirring of sodium hypochlorite, add sodium bromide in proportion, and then stir for 10 minutes after the addition is completed to prepare a composite oxidation bactericide and algicide;

[0035] C, the composite non-oxidative bactericidal algaecide prepared by steps A and B and the composite oxidative bactericidal algaecide are alternately put in the circulating cooling water system every 7 days,

[0036] Wherein, the compound non-oxidative bactericidal algaecide is put in first, and the compound non...

Embodiment 2

[0038] A method for sterilizing and algae-killing utilizing a composite bactericidal algae-killing agent, comprising the following steps:

[0039] A. Mix dodecyldimethylbenzyl ammonium chloride and 5-chloro-2-methyl-4-isothiazolin-3-one in a mass ratio of 9:1, and stir at room temperature for 5 minutes to prepare Composite non-oxidative bactericide and algicide;

[0040] B. Mix sodium hypochlorite and sodium bromide in a mass ratio of 200:1, specifically: in the case of constant stirring of sodium hypochlorite, add sodium bromide in proportion, and then stir for 10 minutes after the addition is completed to prepare a composite oxidation bactericide and algicide;

[0041] C, the composite non-oxidative bactericidal algaecide prepared by steps A and B and the composite oxidative bactericidal algaecide are alternately put in the circulating cooling water system every 7 days,

[0042] Wherein, the compound non-oxidative bactericidal algaecide is put in first, and the compound non...

Embodiment 3

[0044] A method for sterilizing and algae-killing utilizing a composite bactericidal algae-killing agent, comprising the following steps:

[0045] A. Mix dodecyldimethylbenzyl ammonium chloride and 5-chloro-2-methyl-4-isothiazolin-3-one in a mass ratio of 9:1, and stir at room temperature for 5 minutes to prepare Composite non-oxidative bactericide and algicide;

[0046] B. Mix sodium hypochlorite and sodium bromide in a mass ratio of 240:0.9, specifically: in the case of constant stirring of sodium hypochlorite, add sodium bromide in proportion, and then stir for 10 minutes after the addition is completed to prepare a composite oxidation bactericide and algicide;

[0047] C. The composite non-oxidative bactericide and algicide prepared by steps A and B and the composite oxidative bactericide and algaecide are alternately put in the circulating cooling water system every 7 days;

[0048] Wherein, the compound non-oxidative bactericidal algaecide is put in first, and the compoun...

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Abstract

The invention relates to the field of environment treatment, specifically to a composite bactericidal and algaecidal agent and a bactericidal and algaecidal method using the same. The bactericidal andalgaecidal method provided by the invention comprises the following steps: A, adding 5-chloro-2-methyl-4-isothiazoline-3-ketone to prepare a modified dodecyl dimethyl benzyl ammonium chloride composite non-oxidized bactericidal and algaecidal agent; B, adding sodium bromide to prepare a modified sodium hypochlorite composite oxidized bactericidal and algaecidal agent; and C, alternately adding the composite non-oxidized bactericidal and algaecidal agent prepared in the step A and the composite oxidized bactericidal and algaecidal agent prepared in the step B into a recirculating cooling watersystem. According to the invention, by optimization of the contents of additives and the action order and addition amounts of different types of bactericidal and algaecidal agents, bactericidal and algaecidal effects are effectively improved, and pesticide resistance of a water body can be avoided from generation; and the method provided by the invention is simple to operate, uses a small dosageof the composite bactericidal and algaecidal agent, does not cause secondary pollution, greatly saves operation cost and improves economic benefits.

Description

technical field [0001] The invention relates to the field of environmental management, in particular to a compound type bactericide and algicide and a method for sterilizing and algae killing. Background technique [0002] In the circulating cooling water system of waste incineration power plants, a suitable living environment and sufficient nutrients are conducive to the proliferation of microorganisms, and biological slime such as rubbery deposits, sticky substances, gelatinous films or colored slime groups are produced. class of substances. Due to the fast adhesion of slime (the amount of adhesion can reach several millimeters within a month), the thermal efficiency of the circulating cooling water system will be reduced, which is even more serious than the reduction in thermal efficiency caused by corrosion products and attached scale. Specifically, slime is easy to deposit on the metal surface, especially in the high-temperature and low-velocity areas of the water circ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/80A01N33/12A01N59/00A01P1/00A01P13/00C02F1/50
CPCA01N33/12A01N43/80A01N59/00C02F1/50
Inventor 汪洋魏刚文邓纲李艳
Owner CHENGDU XINGRONG RENEWABLE ENERGY CO LTD