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A flocculant for textile printing and dyeing wastewater

A waste water flocculant, textile printing and dyeing technology, applied in the textile industry wastewater treatment, flocculation/sedimentation water/sewage treatment and other directions, can solve the problems of poor decolorization effect and large dosage, and achieve fast coagulation effect, small dosage, Good decolorization effect

Active Publication Date: 2016-05-18
青岛崇杰颐辰环保有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the treatment of textile printing and dyeing wastewater 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

[0015] A flocculant for textile printing and dyeing wastewater according to the present invention comprises the following components by weight ratio: 28 parts of polyaluminum sulfate, 12 parts of sodium aluminate, 7 parts of activated silicic acid, 6 parts of polyacrylamide, 10 parts of borax, and 8 parts of sodium acetate share.

[0016] Add 400mg of flocculant per 1L of sewage.

Embodiment 2

[0018] A flocculant for textile printing and dyeing wastewater of the present invention comprises the following components by weight ratio: 30 parts of polyaluminum sulfate, 10 parts of sodium aluminate, 10 parts of activated silicic acid, 8 parts of polyacrylamide, 15 parts of borax, and 20 parts of sodium acetate .

[0019] For the textile printing and dyeing wastewater flocculant, 500mg of flocculant is added to every 1L of sewage.

Embodiment 3

[0021] A flocculant for textile printing and dyeing wastewater according to the present invention comprises the following components by weight ratio: 25 parts of polyaluminum sulfate, 15 parts of sodium aluminate, 5 parts of activated silicic acid, 5 parts of polyacrylamide, 5 parts of borax, and 1 part of sodium acetate share.

[0022] For the textile printing and dyeing wastewater flocculant, 300mg of flocculant is added to every 1L of sewage.

[0023] The flocculants in the above examples are used to treat textile printing and dyeing wastewater. The textile printing and dyeing wastewater is first filtered through a grid and then enters the sedimentation tank. The flocculant is put into the textile printing and dyeing wastewater in the sedimentation tank for treatment. When dropping into 30 minutes, just there is obvious coagulation reaction, after processing time 2-3h, effect is as shown in table 1:

[0024] .

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PUM

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Abstract

The invention discloses a flocculant for textile printing and dyeing wastewater. The flocculant includes polyaluminum sulfate, sodium aluminate, activated silicic acid, polyacrylamide, borax, and sodium acetate. Printing and dyeing wastewater has fast coagulation effect, good decolorization effect, and small dosage. It is suitable for textile wastewater with large water quality changes. It has good acid resistance and heat resistance, and is suitable for wastewater with large water temperature changes.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a flocculant for textile printing and dyeing wastewater. 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 makes the pulp expand, and the adhesion to the fiber is reduced, and it is removed from...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/52C02F1/56
CPCC02F1/52C02F1/56C02F2103/30
Inventor 王真王京春
Owner 青岛崇杰颐辰环保有限公司
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