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High-salt-content dyeing wastewater treatment recovery zero discharge integration method

A printing and dyeing wastewater and integrated method technology, which is applied in textile industry wastewater treatment, multi-stage water treatment, water/sewage treatment, etc., can solve problems such as unified standards, prevent harmful gas emissions, overcome biochemical treatment difficulties, and improve overall sexual effect

Active Publication Date: 2015-04-01
XINJIANG ENVIRONMENTAL ENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the complexity of the printing and dyeing process itself and the differences in water quality requirements for process water, there is currently no unified standard for the reuse of printing and dyeing wastewater.

Method used

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  • High-salt-content dyeing wastewater treatment recovery zero discharge integration method
  • High-salt-content dyeing wastewater treatment recovery zero discharge integration method
  • High-salt-content dyeing wastewater treatment recovery zero discharge integration method

Examples

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Effect test

Embodiment 1

[0017] Example 1. High-salt printing and dyeing wastewater treatment reuse zero-discharge integrated method, such as figure 1 and figure 2 As shown, the integrated method is composed of six units: pretreatment unit, biochemical treatment unit, decolorization unit, advanced treatment unit, sludge treatment unit and deodorization unit:

[0018] 1. Pretreatment unit: After the desizing wastewater from printing and dyeing enterprises is mixed with the dyeing wastewater with a salt content of more than 4000 mg / L, the solid particle impurities are removed through the grid, and then enters the regulating tank; the domestic sewage is also injected after the solid impurities are removed through the grid Adjusting tank: In the adjusting tank, domestic sewage, desizing wastewater and high-salt dyeing wastewater are mixed in equal proportions to form comprehensive wastewater;

[0019]2. Biochemical treatment unit: carry out hydrolysis and acidification to the comprehensive wastewater fo...

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Abstract

The invention belongs to the technical field of sewage treatment, and particularly discloses a high-salt-content dyeing wastewater treatment recovery zero discharge integration method. The method can perform deep treatment recovery on the high-salt-content dyeing wastewater to obtain production water for textile printing industry, thereby achieving the goal of zero discharge. The integration method is composed of a pretreatment unit, a biochemical treatment unit, a decolorization unit, an advanced treatment unit, a sludge treatment unit and a deodorizing deodorization unit. The integration method is mainly used for treating high-salt-content dyeing wastewater.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and specifically discloses a zero-discharge integrated method for the treatment and reuse of high-salt printing and dyeing wastewater, which can reuse the high-salt dyeing wastewater as production water in the textile printing and dyeing industry through advanced treatment. achieve the goal of zero emissions. Background technique [0002] With the improvement of social and economic level, the textile printing and dyeing industry has developed rapidly, and the treatment of printing and dyeing wastewater generated in the textile printing and dyeing process has become an urgent problem to be solved today. 80% of the water consumption in the textile industry is printing and dyeing, and printing and dyeing wastewater is heavily polluted and difficult to treat. The composition of printing and dyeing wastewater is complex, changeable, and high in COD. It often contains a variety of organic dye...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F103/30
CPCC02F1/04C02F1/441C02F1/444C02F1/4693C02F1/50C02F1/78C02F3/02C02F3/28C02F3/34C02F9/00C02F11/14C02F2101/32C02F2101/34C02F2101/345C02F2101/38C02F2103/30C02F2301/08
Inventor 曾凡付李翔王刚潘洪涛陈东玫
Owner XINJIANG ENVIRONMENTAL ENG TECH
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