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Coagulant formula for electroplating wastewater

A technology of electroplating wastewater and coagulation, applied in water/sewage treatment, chemical instruments and methods, neutralization water/sewage treatment, etc., can solve the problems of poor flocculation effect of flocculant and achieve good coagulation effect

Inactive Publication Date: 2018-11-20
如皋宏皓金属表面水处理有限公司
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a coagulation formula for electroplating wastewater, which can solve the problem of poor flocculation effect of flocculants used in general electroplating wastewater

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] A coagulation formula for electroplating wastewater, which is recorded by weight: 30 parts of polyacrylic acid liquid with 5% to 15% molecular weight of 6 million to 8 million; 20 parts of 20% to 40% polysilicate aluminum solution, 2 2 parts, diatomaceous earth 2 parts, polyacrylamide 25 parts, bamboo charcoal 10 parts, sodium bicarbonate 10 parts, water 10 parts.

Embodiment 2

[0011] A coagulation formula for electroplating wastewater, recorded by weight: 45 parts of polyacrylic acid liquid with 5% to 15% molecular weight of 6 million to 8 million; 30 parts of 20%-40% polysilicate aluminum solution, 6 parts of ferrous hydroxide 6 parts of diatomaceous earth, 30 parts of polyacrylamide, 11 parts of bamboo charcoal, 11 parts of sodium bicarbonate, and 20 parts of water.

Embodiment 3

[0013] A coagulation formula for electroplating wastewater, recorded by weight: 60 parts of polyacrylic acid liquid with 5% to 15% molecular weight of 6 million to 8 million; 40 parts of 20%-40% polysilicate aluminum solution, 10 parts of ferrous hydroxide 10 parts of diatomaceous earth, 35 parts of polyacrylamide, 12 parts of bamboo charcoal, 12 parts of sodium bicarbonate, and 30 parts of water.

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PUM

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Abstract

The invention relates to a coagulant formula for electroplating wastewater. The coagulant formula is characterized by comprising the following components in parts by weight: 30-60 parts of 5-15% polyacrylic liquid having the molecular weight of 6-8 million, 20-40 parts of a 20-40% poly-aluminum silicate solution, 2-10 parts of ferrous hydroxide, 2-10 parts of diatomite, 25-35 parts of polyacrylamide, 10-12 parts of bamboo charcoal, 10-12 parts of sodium bicarbonate and 10-30 parts of water. The coagulant disclosed in the invention integrates dual effects of pH regulation and flocculation, is capable of flocculating sundries in the wastewater while regulating the electroplating wastewater, and has an excellent flocculation effect.

Description

technical field [0001] The invention relates to the field of wastewater treatment, in particular to a coagulation formula for electroplating wastewater. Background technique [0002] Aluminum sulfate, aluminum chloride, polyaluminum chloride and other neutral or alkaline flocculants are usually used to remove suspended solids in wastewater. Among them, aluminum sulfate flocculants have the characteristics of low flocculation temperature, fast reaction speed and wide application range. more. In order to improve the formation of large flocs and improve the removal efficiency, this kind of flocculant usually has a better effect between pH 5-8. Therefore, when treating slightly acidic wastewater such as electroplating, cleaning and other wastewater, a large amount of acid must be added to carry out To adjust the pH, not only need to increase the acid storage equipment, but also the operation is troublesome, which increases the cost of treating alkaline wastewater. In addition,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52C02F1/54C02F1/56C02F1/66
CPCC02F1/5236C02F1/54C02F1/56C02F1/66
Inventor 赵力锋
Owner 如皋宏皓金属表面水处理有限公司
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