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Cotton textile industry dyeing and finishing wastewater flocculant and preparation method thereof

A dyeing and finishing wastewater and flocculant technology, which is applied in textile industry wastewater treatment, chemical instruments and methods, flocculation/sedimentation water/sewage treatment, etc., can solve the problems of poor decolorization effect and large dosage, and achieve less dosage , The preparation method is simple and easy, and the effect of improving the sewage treatment effect

Inactive Publication Date: 2018-07-03
QINGYANG DUNBO TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the wastewater treatment of the cotton textile industry mainly uses a single iron salt and aluminum salt as a chemical flocculant, which has a large dosage and poor decolorization effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A flocculant for cotton textile industry dyeing and finishing wastewater, comprising the following raw materials in parts by mass: 26 parts of polysilicic aluminum sulfate, 5 parts of sodium carboxymethylcellulose, 25 parts of acrylamide, polyoxyethylene polyoxypropylene pentaerythritol ether 5 parts, 10 parts of sodium hypochlorite, 22 parts of sodium silicate, 2 parts of alginate, 4 parts of modified diatomaceous earth, 3 parts of modified zeolite, 8 parts of modified starch, 5 parts of lignin, and 40 parts of water.

[0015] The preparation method of the cotton textile industry dyeing and finishing wastewater flocculant is as follows: according to the mass ratio, polysilica aluminum sulfate, sodium carboxymethyl cellulose, acrylamide, polyoxyethylene polyoxypropylene pentaerythritol ether, sodium silicate, Add alginate, modified diatomite, modified zeolite, modified starch, and lignin to the reactor in sequence, add sodium hypochlorite to water to prepare an aqueous s...

Embodiment 2

[0018] A flocculant for cotton textile industry dyeing and finishing wastewater, comprising the following raw materials in parts by mass: 44 parts of polysilicic aluminum sulfate, 15 parts of sodium carboxymethylcellulose, 45 parts of acrylamide, polyoxyethylene polyoxypropylene pentaerythritol ether 10 parts, 15 parts of sodium hypochlorite, 34 parts of sodium silicate, 5 parts of alginate, 7 parts of modified diatomaceous earth, 8 parts of modified zeolite, 12 parts of modified starch, 11 parts of lignin, and 50 parts of water.

[0019] The preparation method of the cotton textile industry dyeing and finishing wastewater flocculant is as follows: according to the mass ratio, polysilica aluminum sulfate, sodium carboxymethyl cellulose, acrylamide, polyoxyethylene polyoxypropylene pentaerythritol ether, sodium silicate, Add alginate, modified diatomite, modified zeolite, modified starch, and lignin to the reactor in sequence, add sodium hypochlorite to water to prepare an aqueo...

Embodiment 3

[0022] A flocculant for cotton textile industry dyeing and finishing wastewater, comprising the following raw materials in parts by mass: 35 parts of polysilicic aluminum sulfate, 10 parts of sodium carboxymethylcellulose, 35 parts of acrylamide, polyoxyethylene polyoxypropylene pentaerythritol ether 7 parts, 13 parts of sodium hypochlorite, 28 parts of sodium silicate, 3.5 parts of alginate, 5.5 parts of modified diatomaceous earth, 5.5 parts of modified zeolite, 10 parts of modified starch, 8 parts of lignin, and 45 parts of water.

[0023] The preparation method of the cotton textile industry dyeing and finishing wastewater flocculant is as follows: according to the mass ratio, polysilica aluminum sulfate, sodium carboxymethyl cellulose, acrylamide, polyoxyethylene polyoxypropylene pentaerythritol ether, sodium silicate, Add alginate, modified diatomite, modified zeolite, modified starch, and lignin to the reactor in sequence, add sodium hypochlorite to water to prepare an a...

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Abstract

The invention provides a cotton textile industry dyeing and finishing wastewater flocculantand a preparation method thereof, and belongs to the field of cotton textile industry wastewater treatment. The flocculant comprises the following raw materials in parts by mass: 26-44 parts of polymeric silicate-aluminum sulfate, 5-15 parts of sodium carboxymethyl cellulose, 25-45 parts of acrylamide, 5-10parts of polyoxyethylene polypropylene oxide pentaerythritol ether, 10-15 parts of sodium hypochlorite, 22-34 parts of sodium silicate, 2-5 parts of sodium alginate, 4-7 parts of modified kieselguhr,3-8 parts of modified zeolite, 8-12 parts of modified starch, 5-11 parts of lignin and 40-50 parts of water. According to the cotton textile industry dyeing and finishing wastewater flocculant provided by the invention, through reasonable compounding of the components, the flocculant has relatively good coagulation effect on various kinds of dyeing and finishing wastewater, and facilitates water separation; the sewage treatment effect is obviously improved, and the dosage is small; and according to the preparation method provided by the invention, implementation is simple and easy and the production cost can be effectively saved.

Description

technical field [0001] The invention belongs to the field of wastewater treatment of cotton textile industry, and in particular relates to a flocculant for dyeing and finishing wastewater of cotton textile industry and a preparation method thereof. Background technique [0002] Natural fibers contain impurities, and in the process of textile processing, various pulps, oils and contaminated dirt are added. The existence of these impurities not only hinders the smooth progress of dyeing and finishing, but also affects the wearability of fabrics. The purpose of scouring and bleaching is to use chemical and physical mechanical effects to remove impurities on the fabric, so that the fabric is white, soft, and has good permeability, so as to meet the wearing requirements and provide qualified semi-finished products for dyeing, printing, and finishing. Quickly pass the fabric through a high-temperature flame, or rub the red-hot metal surface to burn off the fluff, alkali desizing m...

Claims

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Application Information

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IPC IPC(8): C02F1/52C02F1/54C02F1/56C02F103/30C02F101/30
CPCC02F1/5236C02F1/5245C02F1/5263C02F1/54C02F1/56C02F2101/308C02F2103/30
Inventor 房世平秦国鹏
Owner QINGYANG DUNBO TECH DEV CO LTD