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Textile printing and dyeing sewage treatment system

A treatment system, textile printing and dyeing technology, applied in the field of textile printing and dyeing sewage treatment system, can solve the problems that organic matter cannot be completely decomposed, reduce the content of trace elements in water body, and incomplete decolorization, etc., to improve energy utilization, reduce COD, improve The effect of energy efficiency

Active Publication Date: 2021-06-04
嘉兴市天伦纳米染整有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The existing printing and dyeing wastewater treatment device adopts an anaerobic and aerobic integrated device. On the one hand, it can save equipment and reduce cost investment. The content of trace elements in the water body is further reduced, and the organic pollutants, pigments and some inorganic salts in the printing and dyeing wastewater are completely removed by adding activated carbon and metal filters to the electrolytic cell, which effectively improves the water quality, but for textiles that are difficult to biochemically treat For printing and dyeing wastewater, the anaerobic reaction can only treat part of the organic matter, and a large part of the refractory organic matter cannot be completely decomposed, so there is the problem of incomplete decolorization

Method used

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  • Textile printing and dyeing sewage treatment system
  • Textile printing and dyeing sewage treatment system
  • Textile printing and dyeing sewage treatment system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Embodiment 1: a kind of treatment system of textile printing and dyeing sewage, see figure 1 , including the cooling pool 1 connected to the textile workshop, the regulating pool 2 used to adjust the pH value of sewage, the anaerobic pool 3 added with biological bacteria, the aerobic pool 4 connected to the anaerobic pool 3, and the aerobic pool 4 connected Primary sedimentation tank 5, reaction tank 6 for decolorization, secondary sedimentation tank 7 connected to reaction tank 6, ultrafiltration tank 8 connected to secondary sedimentation tank 7, reverse osmosis tank 9 connected to ultrafiltration tank 8 And the reuse pool 10 connected with the reverse osmosis tank.

[0050] The cooling pool 1 is equipped with a grille and a hair removal machine, and the sewage is discharged into the cooling pool 1 to cool and then passed into the regulating pool 2;

[0051] An acid-base regulator is injected into the regulating tank 2, and the acid-base regulator refers to carbon di...

Embodiment 2

[0059] Embodiment 2: A treatment system for textile printing and dyeing sewage. The difference from Embodiment 1 is that the decolorizer in the reaction tank 6 includes dicyandiamide, tetramethyl p- Phenylenediamine, Polyferric Chloride and Hydrochloric Acid.

Embodiment 3

[0060] Embodiment 3: A treatment system for textile printing and dyeing sewage. The difference from Embodiment 1 is that the 6 decolorizers in the reaction tank include dicyandiamide and tetramethyl-p-phenylenediamine with a molar ratio of 1:3:0.5:0.8:0.113. , polyferric chloride and hydrochloric acid.

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Abstract

The invention discloses a treatment system for textile printing and dyeing sewage, which relates to the technical field of sewage treatment. The key points of the technical scheme include: a cooling pool; a regulating pool; A biofilm with aerobic ammonium oxidizing bacteria and nitrifying bacteria is attached to the aerobic filler layer, and an aeration device is arranged inside the aerobic tank; primary sedimentation tank; reaction tank: the sewage discharged from the primary sedimentation tank is passed into the reaction tank, Add 100-200mg / L decolorizing agent into the reaction tank for decolorization treatment; secondary sedimentation tank; ultrafiltration tank; reverse osmosis tank; the invention solves the problem of incomplete decolorization in the printing and dyeing sewage treatment system. Adding a special decolorizing agent into the reaction pool can completely decolorize.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, more specifically, it relates to a treatment system for textile printing and dyeing sewage. Background technique [0002] Textile printing and dyeing wastewater has the characteristics of large water volume, high content of organic pollutants, high alkalinity, and large changes in water quality. It is one of the most difficult industrial wastewater to treat. Impurities, sand substances, inorganic salts, etc. At present, textile wastewater is mostly treated by physical and chemical methods, such as adsorption method, coagulation sedimentation method, etc. Among them, it is difficult for a single adsorbent in the adsorption method to treat textile printing and dyeing wastewater, and multiple adsorption methods are often used. Coagulation and sedimentation method, combined with coagulant to flocculate and precipitate organic matter in textile printing and dyeing wastewater, this method only...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F103/30
CPCC02F1/001C02F1/283C02F1/441C02F1/444C02F1/52C02F1/5245C02F1/5281C02F1/56C02F1/66C02F3/30C02F9/00C02F2103/30C02F2203/006C02F2209/08C02F2209/14C02F2209/16C02F2301/046C02F2303/02
Inventor 张建芳钱忠钱琴芳
Owner 嘉兴市天伦纳米染整有限公司