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Preparing method for dyeing waste water treating agent

A printing and dyeing sewage and treatment agent technology, applied in the direction of water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems of unsatisfactory effect and low efficiency of printing and dyeing wastewater treatment, and improve the color High removal rate, low cost and excellent performance

Active Publication Date: 2015-12-30
SUZHOU XINENG ENVIRONMENTAL SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there have been a large number of researches on printing and dyeing sewage treatment agents in the prior art, but there are still some defects. For example, the preparation methods are all conventional processes, and the obtained printing and dyeing sewage treatment agents are still low in treatment efficiency for printing and dyeing wastewater, and the effect is not ideal.

Method used

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  • Preparing method for dyeing waste water treating agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Party:

[0030] 10 parts of sodium polyacrylate, 5 parts of starch, 30 parts of bentonite, 5 parts of iron sulfate, 5 parts of alum,

[0031] 0.5 parts of aluminum sulfate, 1 part of activated carbon, 1 part of basic alumina, 0.5 parts of ferrous sulfate,

[0032] 0.2 parts of nickel nitrate, 10 parts of chitosan, and 0.02 parts of polysorbate.

[0033] The viscosity-average molecular weight of the sodium polyacrylate is 4000, and the molecular weight of the chitosan is 8000.

[0034] Preparation:

[0035] (1) get bentonite, ferric sulfate, alum, aluminum sulfate, gac, basic alumina, ferrous sulfate and nickel nitrate, mix, be ground into fine powder;

[0036] (2) Take chitosan, add a certain amount of pure water, heat and dissolve at 50°C, then add sodium polyacrylate and starch, stir, keep warm, and obtain an intermediate material;

[0037] (3) Mix the above-mentioned fine powder and the intermediate material, add polysorbate, stir at 40°C and 3000r / min for 10h, a...

Embodiment 2

[0039] Party:

[0040] 10 parts of sodium polyacrylate, 25 parts of starch, 50 parts of bentonite, 15 parts of iron sulfate, 15 parts of alum,

[0041] 1.5 parts of aluminum sulfate, 9 parts of activated carbon, 7 parts of basic alumina, 1.5 parts of ferrous sulfate,

[0042] 0.8 parts of nickel nitrate, 20 parts of chitosan, and 0.08 parts of polysorbate.

[0043] The viscosity-average molecular weight of the sodium polyacrylate is 6000, and the molecular weight of the chitosan is 12000.

[0044] Preparation:

[0045] (1) get bentonite, ferric sulfate, alum, aluminum sulfate, gac, basic alumina, ferrous sulfate and nickel nitrate, mix, be ground into fine powder;

[0046] (2) Take chitosan, add a certain amount of pure water, heat and dissolve at 70°C, then add sodium polyacrylate and starch, stir, and keep warm to obtain the intermediate material;

[0047] (3) Mix the above-mentioned fine powder and the intermediate material, add polysorbate, stir at 60°C and 5000r / min f...

Embodiment 3

[0049] Party:

[0050] 10 parts of sodium polyacrylate, 15 parts of starch, 40 parts of bentonite, 10 parts of iron sulfate, 10 parts of alum,

[0051] 1 part of aluminum sulfate, 5 parts of activated carbon, 4 parts of basic alumina, 1 part of ferrous sulfate,

[0052] 0.5 parts of nickel nitrate, 15 parts of chitosan, and 0.05 parts of polysorbate.

[0053] The viscosity-average molecular weight of the sodium polyacrylate is 5000, and the molecular weight of the chitosan is 10000.

[0054] Preparation:

[0055] (1) get bentonite, ferric sulfate, alum, aluminum sulfate, gac, basic alumina, ferrous sulfate and nickel nitrate, mix, be ground into fine powder;

[0056] (2) Take chitosan, add a certain amount of pure water, heat and dissolve at 60°C, then add sodium polyacrylate and starch, stir, keep warm, and obtain an intermediate material;

[0057] (3) Mix the above-mentioned fine powder and the intermediate material, add polysorbate, stir at 50°C and 4000r / min for 15h, a...

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Abstract

The invention discloses a preparing method for a dyeing waste water treating agent. The preparing method includes the following steps that bentonite, ferric sulfate, alums, aluminum sulfate, activated carbon, basic aluminum chloride, ferrous sulfate and nickel nitrate are taken, mixed and smashed into fine powder; chitosan is added into certain amount of pure water and dissolved through heating, sodium polyacrylate and starch are added and stirred, and an intermediate material is obtained after heat preservation; the fine powder and the intermediate material are mixed, and polysorbate is added and stirred to obtain the dyeing waste water treating agent. Compared with the prior art, the preparing method is simple in technology and low in cost, the chroma removing rate, the turbidity removing rate and the COCcr removing rate of dyeing waste water treated by the obtained dyeing waste water treating agent can be substantially increased, and the dyeing waste water treating agent is excellent in performance.

Description

technical field [0001] The invention relates to a preparation method of a printing and dyeing sewage treatment agent, belonging to the technical field of printing and dyeing sewage treatment. Background technique [0002] According to statistics, in 2003, among the various industrial industries in the country, the top five industries with the largest amount of wastewater discharge were papermaking, chemical manufacturing, electric power, ferrous metal smelting, and textile printing and dyeing. Among various industrial industries, the textile printing and dyeing industry The discharge of COD ranks fourth. It can be seen that the sewage discharge of the printing and dyeing industry needs to be treated urgently. The sewage discharged by the printing and dyeing factory mainly includes bleaching wastewater, printing, dyeing wastewater and desizing water, which is different from the wastewater discharged by other industries. of. At present, the treatment of printing and dyeing wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/00
Inventor 唐晓峰
Owner SUZHOU XINENG ENVIRONMENTAL SCI & TECH CO LTD
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