Green phosphate-free water treating agent

A kind of water treatment agent, said technology, applied in water/sludge/sewage treatment, descaling and water softening, chemical instruments and methods, etc., can solve problems such as polluted environment, water quality eutrophication, etc., to solve corrosion and Effects of fouling problems

Inactive Publication Date: 2004-11-24
上海多佳水处理科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many kinds of water treatment agents with corrosion and scale inhibition effects, but all of these water treatment a

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0026] Example

[0027] In a cooling water system with a water storage capacity of 100T, the water treatment agent of the present invention (the water treatment agent includes 50wt% sodium tungstate, 30wt% sodium tungstate, 30wt% acrylic acid and acrylate copolymer with a molecular weight of 5000, 10 wt % of polypropylene sulfonate with a molecular weight of 1500 and 10 wt % of benzotriazole), and the water is drained out after 8 to 48 hours of circulating operation. Then, the water treatment agent of the present invention is added again at the dosage of 200g-500g / ton of water, and then the system is transferred to normal operation. Through the addition of the above water treatment agents, the effect of corrosion and scale inhibition can be detected by the water quality of the circulating water. The test results are shown in the table below:

[0028] By adding the water treatment agent, the concentration of hardness ions in the water is significantl...

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PUM

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Abstract

The present invention discloses one kind of water treating agent with corrosion inhibiting and scale inhibiting effect. It includes tungstate, acrylic acid-acrylic ester copolymer, polypropenyl sulfonate and benzotriazole. It has both corrosion inhibiting and scale inhibiting effects, no environmental pollution and no harm to human body, and is one kind of environment friendly green water treating agent.

Description

technical field [0001] The invention relates to a water treatment agent, in particular to a water treatment agent with corrosion and scale inhibition functions. Background technique [0002] During the use of industrial circulating cooling water, it is easy to cause corrosion and scaling obstacles of pipeline equipment. For this reason, the method of adding chemicals is usually used to inhibit corrosion and scaling. At present, there are many kinds of water treatment agents with corrosion and scale inhibition effect, but these water treatment agents all contain phosphate, which can easily cause eutrophication of water quality during water treatment, resulting in environmental pollution. Therefore, the development of an environmentally friendly and environmentally friendly water treatment agent has attracted people's attention. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide an environmentally friendly water treatment agent with corrosi...

Claims

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Application Information

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IPC IPC(8): C02F5/12
Inventor 周国光陈康陆仁杰冯长春高庆华
Owner 上海多佳水处理科技有限公司
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