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Flocculating agent for textile printing and dyeing wastewater

A wastewater flocculant, textile printing and dyeing technology, applied in textile industrial wastewater treatment, flocculation/sedimentation water/sewage treatment, etc., can solve the problems of large dosage and poor decolorization effect, achieve fast coagulation effect, good decolorization effect, Good heat resistance

Active Publication Date: 2015-01-14
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] Add 400mg of flocculant per 1L of sewage.

[0016] Example 2

Embodiment 2

[0018] For the textile printing and dyeing wastewater flocculant, 500 mg of flocculant is added to every 1 L of sewage.

[0019] Example 3

Embodiment 3

[0021] For the textile printing and dyeing wastewater flocculant, 300mg of flocculant is added to every 1L of sewage.

[0022] 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:

[0023] .

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PUM

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Abstract

The invention discloses a flocculating agent for textile printing and dyeing wastewater. The flocculating agent comprises polyaluminum sulfate, sodium aluminate, activated silicic acid, polyacrylamide, borax and sodium acetate, wherein all the components coordinate with one another to treat the textile printing and dyeing wastewater. The flocculating agent has the advantages of quick flocculating effect, good decoloring effect and low dosage; the flocculating agent is applicable to textile wastewater great in water quality change, good in acid resistance and heat resistance, and is also suitable for wastewater great in water temperature change.

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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IPC IPC(8): C02F1/52C02F1/56
CPCC02F1/52C02F1/56C02F2103/30
Inventor 牟军平朱娜刘晓于春光
Owner 青岛崇杰颐辰环保有限公司
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