Low-phosphorus water treatment agent composition and application thereof

A water treatment agent and composition technology, applied in water/sludge/sewage treatment, sterilization/microdynamic water/sewage treatment, descaling and water softening, etc. High phosphorus content and other problems, to achieve the effect of good sterilization, less chemical dosage, and low phosphorus content

Pending Publication Date: 2015-06-17
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of existing water treatment agents, such as high phosphorus content and la...

Method used

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  • Low-phosphorus water treatment agent composition and application thereof
  • Low-phosphorus water treatment agent composition and application thereof
  • Low-phosphorus water treatment agent composition and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] This example is used to illustrate the low phosphorus water treatment agent composition provided by the present invention.

[0063] Preparation of water treatment agent: at room temperature, 2.5g metalaxyl was first dissolved in 5mL of ethanol, and then mixed with 7.8g solid content of 40% HPAA, 1.3g zinc chloride and 16.7g solid content of 30% AA / AM / AMPS copolymer was dissolved together in deionized water, stirred evenly, and prepared into 100g of water treatment agent A1.

Embodiment 2

[0065] This example is used to illustrate the low phosphorus water treatment agent composition provided by the present invention.

[0066] Preparation of water treatment agent: at room temperature, 5g of metalaxyl was first dissolved in 10mL of ethanol, and then mixed with 7.5g of HEDP with a solid content of 50%, 8.3g of zinc sulfate heptahydrate and 18.8g of 30% solid content AA / AMPS copolymer was dissolved in deionized water together, stirred evenly, and 100g of water treatment agent A2 was prepared.

Embodiment 3

[0068] This example is used to illustrate the low phosphorus water treatment agent composition provided by the present invention.

[0069] Preparation of water treatment agent: at room temperature, 3.8g metalaxyl was first dissolved in 10mL of ethanol, and then with 5g solid content of 50% PBTCA, 5.5g heptahydrate zinc sulfate and 20.9g solid content of 30% AA / HPA / AMPS copolymer was dissolved in deionized water together, stirred evenly, and 100g of water treatment agent A3 was prepared.

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PUM

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Abstract

The invention discloses a low-phosphorus water treatment agent composition. The composition contains a benzamide bactericide, an organic phosphonic acid corrosion inhibitor and a sulfonic group-containing copolymer. The invention also discloses an application of the low-phosphorus water treatment agent composition in industrial circulating cooling water treatment. The assessment result of the water treatment performance of the composition shows that a small dosage of the composition has high calcium carbonate scale inhibition rate, high zinc inhibition rate, high sterilization rate and slow carbon steel sheet corrosion rate in water treatment. The above low-phosphorus water treatment agent has the advantages of good water treatment effect, small dosing amount and low phosphorus content.

Description

technical field [0001] The invention relates to a low phosphorus water treatment agent composition and the application of the composition in industrial circulating cooling water. Background technique [0002] In the circulating cooling water system, there are mainly three problems of scaling, corrosion and microbial hazards. The most convenient and effective way to prevent system scaling and corrosion is to add corrosion and scale inhibitors to the circulating cooling water. At present, most of the corrosion and scale inhibitors commonly used in the treatment of circulating cooling water in China are phosphorus-containing treatment agents. As people gradually understand the problem of water pollution and eutrophication caused by phosphorus-containing compounds, the country's requirements for phosphorus discharge are becoming increasingly stringent. The development of low phosphorus formula has been paid more and more attention. [0003] The control of bacteria and algae in...

Claims

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Application Information

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IPC IPC(8): C02F1/50C23F11/173C02F5/14
CPCC02F5/14C23F11/1676
Inventor 郦和生冯婕胡艳华王岽
Owner CHINA PETROLEUM & CHEM CORP
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