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Dye wastewater intensified decoloring and cleaning purifier and preparation method thereof

A dye wastewater and water purifying agent technology, applied in water/sewage treatment, water/sludge/sewage treatment, flocculation/sedimentation water/sewage treatment, etc., can solve the lack of research on the impact of product quality and wastewater treatment system, and it is difficult to achieve Recycling standards, spot dyeing of fiber cloth, etc., to achieve the effect of low processing cost, easy operation, and fast flocculation and sedimentation

Inactive Publication Date: 2019-03-12
绵阳巴山环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the iron salt in the recycled water is too high, it will often cause spots on the fiber cloth or the dyeing will not be bright
Physicochemical + biochemical treatment processes are commonly used in the treatment of printing and dyeing wastewater in China. The quality of the effluent basically meets the "Discharge Standards for Pollutants in the Textile Dyeing and Finishing Industry", but it is generally difficult to meet the recycling standards.
The recycling of printing and dyeing wastewater has not attracted enough attention. Most of the domestic research on the recycling of printing and dyeing wastewater is in the experimental stage, and there are few projects for practical application, and the projects that have been put into operation have the disadvantages of low recycling rate and high treatment cost. There is also a lack of research on the impact on product quality and wastewater treatment systems after long-term recycling

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A kind of preparation method of dye wastewater powerful decolorization decontamination water purifying agent, it comprises the steps: in the reactor (volume is less than 1200L) that agitator and constant temperature are housed, add melamine 250kg earlier, 10kg aluminum sulfate, 100kg ammonium chloride , 100kg formaldehyde, after stirring and dissolving, control the reaction temperature at 70±1°C, and react at the temperature for 1h; then add 100kg urea, 100kg ammonium chloride, and 100kg formaldehyde, control the reaction temperature at 90±5°C, and react at constant temperature for 3h; Add 100 kg of soluble starch aqueous solution with a mass concentration of 30%, and 50 kg of cationic polyacrylamide aqueous solution with a mass concentration of 4%, react at a constant temperature of 70±5°C for 30 minutes for the third polymerization reaction, and cool to room temperature to obtain A powerful decolorization, decontamination and water purification agent for dye wastewater...

Embodiment 2

[0026] A kind of preparation method of dye wastewater powerful decolorization decontamination water purifying agent, it comprises the steps: in the reactor (volume is less than 1200L) that agitator and constant temperature are housed, add melamine 250kg earlier, 10kg aluminum sulfate, 100kg ammonium chloride , 100kg formaldehyde, after stirring and dissolving, control the reaction temperature to 69°C, and react at a constant temperature for 1 hour; then add 100kg of urea, 100kg of ammonium chloride, 100% formaldehyde, control the reaction temperature at 85°C, and react at a constant temperature for 3 hours; then add a mass concentration of 20 % soluble starch aqueous solution 100 kg, and cationic polyacrylamide aqueous solution 10 kg with a mass concentration of 1%, react at a constant temperature of 65°C for 30 minutes for the third polymerization reaction, and cool to room temperature to prepare a powerful decolorization of dye wastewater Decontamination water purifier.

Embodiment 3

[0028] A kind of preparation method of dye wastewater powerful decolorization decontamination water purifying agent, it comprises the steps: in the reactor (volume is less than 1200L) that agitator and constant temperature are housed, add melamine 250kg earlier, 10kg aluminum sulfate, 100kg ammonium chloride , 100kg of formaldehyde, after stirring and dissolving, control the reaction temperature to 71°C, and react at a constant temperature for 1 hour; then add 100kg of urea, 100kg of ammonium chloride, and 100kg of formaldehyde, control the reaction temperature at 95°C, and react at a constant temperature for 3 hours; then add a mass concentration of 60% 100 kg of soluble starch aqueous solution, and 50 kg of cationic polyacrylamide aqueous solution with a mass concentration of 6%, reacted at a constant temperature of 75°C for 30 minutes for the third polymerization reaction, and cooled to room temperature to prepare a powerful decolorization of dye wastewater Sewage water puri...

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Abstract

The invention relates to a dye wastewater intensified decoloring and cleaning purifier and a preparation method thereof. The dye wastewater intensified decoloring and cleaning purifier is characterized by being prepared mainly by polymerizing, by weight part, 2.5 parts of melamine, 0.1 part of aluminum sulfate, 2 parts of ammonium chloride, 2 parts of formaldehyde, 1 part of urea, 1 parts of soluble starch aqueous solution with a mass concentration of 20-60%, and 0-0.5 part of cationic polyacrylamide aqueous solution with a mass concentration of 1-6%. The dye wastewater intensified decoloringand cleaning purifier has the advantages of good treating effects and low treating costs when applied to treating dye wastewater.

Description

technical field [0001] The invention belongs to the technical field of printing and dyeing wastewater treatment, and in particular relates to a powerful decolorizing, decontaminating and purifying agent for decolorizing printing and dyeing wastewater and a preparation method thereof. Background technique [0002] In recent years, with the development of chemical fiber fabrics, the rise of imitation silk and the progress of printing and dyeing finishing technology, while the variety of dyes is increasing, the function is also developing in the direction of anti-photolysis, anti-oxidation, and anti-biological oxidation. Make dye wastewater treatment more difficult. Wastewater containing water-soluble dyes, such as reactive dyes and acid dyes, is difficult to remove using current mature wastewater treatment processes. With the increasingly stringent discharge standards and rising water and sewage charges, companies are increasingly aware of environmental protection, printing a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/56C02F1/52C02F103/30
CPCC02F1/56C02F1/5236C02F2103/30
Inventor 曾强
Owner 绵阳巴山环保科技有限公司
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