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Dyeing wastewater treatment method

A printing and dyeing sewage and treatment method technology, applied in water/sewage treatment, light water/sewage treatment, water/sewage multi-stage treatment, etc., can solve the problem of the decline of removal rate of biological treatment system and the failure of biochemical methods to meet the requirements of the industry, etc. problems, to achieve the effect suitable for large-scale industrial application, strong practicability, and strong operability

Inactive Publication Date: 2016-09-21
陈昌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The removal rate of the original biological treatment system has dropped significantly, and the removal of dichromaticity has become a major problem in the treatment of printing and dyeing wastewater
The original biochemical method has not been able to meet the requirements of the industry in terms of decolorization. Therefore, in response to the above problems, a series of research work has been carried out at home and abroad to explore the treatment of printing and dyeing wastewater, in order to improve the removal rate while meeting the standard requirements. Chroma Removal Index

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Prepare compound sewage treatment agent, the specific formula is: 5 parts of polyacrylamide, 2 parts of aluminum tripolyphosphate, 5 parts of activated carbon, 7 parts of diatomaceous earth, 3 parts of ethyl acetate, 6 parts of sodium hypochlorite, 6 parts of urea-formaldehyde resin , 4 parts of paraben, 7 parts of calcium propionate, 3 parts of chlorhexidine iodine, 5 parts of chitosan, 7 parts of soybean fiber extract, 5 parts of gallic acid;

[0023] (2) Add a compound sewage treatment agent with a mass ratio of 1% to the printing and dyeing sewage, and mechanically stir for 20 minutes to obtain pretreated printing and dyeing sewage;

[0024] (3) Ultrasonic treatment was performed on the obtained pretreated printing and dyeing sewage, the ultrasonic power was 1650w, the ultrasonic time was 45min, and then stood still for 25 minutes, and filtered to obtain the sewage clarified liquid;

[0025] (4) Pass the sewage clarified liquid through the D113 cation exchange r...

Embodiment 2

[0031] (1) Prepare a composite sewage treatment agent, the specific formula is: 7 parts of polyacrylamide, 3 parts of aluminum tripolyphosphate, 7 parts of activated carbon, 10 parts of diatomaceous earth, 5 parts of ethyl acetate, 8 parts of sodium hypochlorite, 9 parts of urea-formaldehyde resin , 6 parts of paraben, 9 parts of calcium propionate, 5 parts of chlorhexidine iodine, 12 parts of chitosan, 11 parts of soybean fiber extract, 7 parts of gallic acid;

[0032] (2) Add a compound sewage treatment agent with a mass ratio of 1% to the printing and dyeing sewage, and mechanically stir for 22 minutes to obtain pretreated printing and dyeing sewage;

[0033] (3) Ultrasonic treatment was performed on the pretreated printing and dyeing sewage obtained, the ultrasonic power was 1650w, the ultrasonic time was 45 minutes, and then stood for 25 minutes, and filtered to obtain the sewage clarified liquid;

[0034] (4) Pass the sewage clarified liquid through the D113 cation excha...

Embodiment 3

[0040] (1) Prepare compound sewage treatment agent, the specific formula is: 13 parts of polyacrylamide, 6 parts of aluminum tripolyphosphate, 12 parts of activated carbon, 19 parts of diatomaceous earth, 6 parts of ethyl acetate, 14 parts of sodium hypochlorite, 15 parts of urea-formaldehyde resin , 11 parts of paraben, 14 parts of calcium propionate, 6 parts of chlorhexidine iodine, 13 parts of chitosan, 19 parts of soybean fiber extract, 8 parts of gallic acid;

[0041] (2) Add a compound sewage treatment agent with a mass ratio of 1% to the printing and dyeing sewage, and mechanically stir for 24 minutes to obtain pretreated printing and dyeing sewage;

[0042] (3) Ultrasonic treatment was performed on the pretreated printing and dyeing sewage obtained, the ultrasonic power was 1650w, the ultrasonic time was 45 minutes, and then stood for 25 minutes, and filtered to obtain the sewage clarified liquid;

[0043] (4) Pass the sewage clarified liquid through the D113 cation ex...

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Abstract

The invention discloses a dyeing wastewater treatment method. The method comprises the steps that a compound wastewater treatment agent is prepared from polyacrylamide, aluminum triphosphate, activated carbon, kieselguhr, ethyl acetate, sodium hypochlorite, urea resin, p-hydroxybenzoate, calcium propionate, chlorhexidine iodine, chitosan, soybean fiber extracts and gallic acid and wastewater are subjected to a stirring reaction, ultrasonic treatment is conducted, column elution is conducted through an ion exchange column, flocculant is added and stirred, flocculation precipitation is conducted, supernatant obtained through flocculation precipitation passes through column adsorption resin, filtration treatment is conducted through a membrane filter, bactericidal treatment is conducted, and treated water meeting emission standard is obtained. According to the dyeing wastewater treatment method, the pollutant removal rate is greatly increased, and chromaticity elimination rate is greatly increased; meanwhile, the process is simple and easy to operate, the operability is high, pollution to environment does not exist, the industry requirement can be met, and the dyeing wastewater treatment method has a good application prospect.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a treatment method for printing and dyeing sewage. Background technique [0002] Water is the source of life and the most precious resource in nature. The protection, utilization and treatment of water resources is one of the hottest topics in the world today. Therefore, international research on water quality and water treatment technology is developing rapidly, and pollution from industrial wastewater and domestic wastewater is also a major problem facing the country. . my country is one of the countries that lack water resources in the world. The development of water quality and water treatment technology has made great progress, and has made great contributions to environmental protection and water conservation. However, the current sewage treatment technology and development There is still a large gap between countries. At present, the domestic water treatment tec...

Claims

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Application Information

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IPC IPC(8): C02F9/08C02F103/30
CPCC02F9/00C02F1/285C02F1/32C02F1/36C02F1/5236C02F1/56C02F2001/425C02F2103/30C02F2301/08
Inventor 陈昌
Owner 陈昌
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