Bactericidal and algaecidal composition for intermediate water system, preparation method and application thereof

A technology for sterilizing and killing algae and a composition, which is applied to a sterilizing and algae killing composition used in reclaimed water systems and the fields of preparation and application thereof, can solve the problems of increasing water turbidity, algal growth in algal water bodies, etc., and achieves excellent sterilization effect, The effect of energy saving and low economic cost of backwater utilization

Inactive Publication Date: 2010-02-03
北京拓凯化工技术有限公司
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Problems solved by technology

The reason for the generation of biological slime is that the circulating cooling water system is an open circulating cooling system, which inevitably brings impurities in the air during operation, thereby increasing the turbidity of the water body, algae, etc., which are easy to cause algae in the water body Breeding factors
Previous bactericides and algicides can not meet the above conditions to a considerable extent

Method used

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  • Bactericidal and algaecidal composition for intermediate water system, preparation method and application thereof
  • Bactericidal and algaecidal composition for intermediate water system, preparation method and application thereof
  • Bactericidal and algaecidal composition for intermediate water system, preparation method and application thereof

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preparation example Construction

[0050] In a word, the bactericidal and algae-killing composition used in the reclaimed water system of the present invention and its preparation method and application, the composition includes the following components: diquaternary ammonium salt, modified quaternary ammonium salt, penetrating agent, synergist and water, wherein Water is the solvent. The bactericidal and algae-killing composition can effectively prevent bacteria and algae from growing in cooling water. At the same time, it also has the functions of slime peeling and odor removal. The results show that the composition has significant bactericidal and algae-killing effects, the bactericidal rate of heterotrophic bacteria, iron bacteria, ammonifying bacteria and sulfate-reducing bacteria reaches more than 95%, the bactericidal effect is excellent, and it is suitable for complex water quality changes (high temperature, floating objects High index, high ammonia nitrogen index, high oil index, high organic phosphor...

Embodiment 1

[0053] A bactericidal and algae-killing composition for reclaimed water systems, containing the following components (the parts are by weight, such as kilograms): 40 parts of diquaternary ammonium salts, 38 parts of modified quaternary ammonium salts, 1 part of penetrant, 20 parts of effect agent, 19.9 parts of water, the preparation method of this composition is:

[0054] 1.1. Preparation of materials: According to the above formula ratio, use a metering pump to weigh the diquaternary ammonium salt, modified quaternary ammonium salt, penetrant, synergist and water in sequence.

[0055] 1.2. Production: Turn on the vacuum pump, pump the double quaternary ammonium salt, the modified quaternary ammonium salt into the reaction kettle, start stirring (80 rpm), and mix well for about 20 minutes; at this time, mix the penetrant and synergist Dissolve it completely in water: slowly add water into the kettle while stirring, continue to stir for about 20 minutes, mix well and pack sepa...

Embodiment 2

[0057] Bactericidal experiment of the bactericidal and algicidal composition of the present invention.

[0058]2.1. Purpose of the experiment.

[0059] "Determination of Slime-forming Bacteria in Industrial Circulating Cooling Water - Plate Counting Method" is to cultivate bacteria at a constant temperature in the laboratory under given conditions in the laboratory, blank (without adding bactericide TW-506, or TW-506 to kill algae) The ratio of the number of bacteria grown per unit area to the number of bacteria grown per unit area after adding the bactericidal algaecide is used to calculate the bactericidal rate. So as to understand the effect of sterilization and algae removal.

[0060] 2.2. Experimental conditions.

[0061] Experimental water quality: the experimental water is provided by a power plant in Beijing, a steel factory in Beijing, and a chemical factory in Beijing; the bactericidal and algicidal agent is the bactericidal and algalicidal composition used in the ...

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Abstract

The invention relates to a bactericidal and algaecidal composition for an intermediate water system, a prepration method and an application thereof, wherein, the composition comprises the following components of bisquaternary ammonium salt, modified quatemary ammonium salt, penetrating agent, synergist and water, wherein, the water is used as a solvent. The bactericidal and algaecidal compositioncan effectively prevent the propagation of bacteria and algae and other phenomena in cooling water. The bactericidal and algaecidal composition simultaneously has the roles of stripping slime, removing odor and the like. The result shows that the composition has significant bactericidal and algaecidal effects, the bactericidal rate of heterotrophic bacteria, iron bacteria, ammonifying bacteria andsulfate-reducing bacteria can be more than 95%, the bactericidal effect is excellent, the composition is applicable to water quality with complicated change (high high-temperature and float indicators, high ammonia nitrogen indicators, high oil indicators and high organic phosphorus indicators), a wide range of fluctuations and the like, the dose is small, and the excellent bactericidal and algaecidal requirements can be achieved by only 50-100mg / l. In addition, the product has small toxicity and easy degradation. Therefor, the composition has good economic benefits, environmental protectionbenefits and social benefits for enterprises.

Description

technical field [0001] The present invention relates to the technical field of industrial water treatment, in particular to a sterilizing and algae-killing composition used in reclaimed water systems and its preparation method and application. The reclaimed water system mainly refers to circulating water systems used in industries such as electric power and steel , using reclaimed water as circulating cooling water replenishment, it is necessary to sterilize the reclaimed water to prevent the pipelines and equipment of the circulating water system from being harmed by the growth of bacteria and algae, sludge deposition, soft scale formation, etc., especially suitable for The invention discloses a sterilizing and algicidal composition using reclaimed water as a circulating supplementary water system, a preparation method and application thereof. The bactericide and algicide of the present invention is an environment-friendly treatment agent, and is especially suitable for circu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N33/12A01N35/02A01N43/54A01N43/90A01N41/06A01N43/16A01P1/00A01P13/00C02F1/50C02F103/16C02F103/00
Inventor 刘雪冬宋焕明金永健杜雪梅
Owner 北京拓凯化工技术有限公司
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