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High-salinity high-chromaticity printing and dyeing wastewater recovery process and equipment thereof

A printing and dyeing wastewater and high salinity technology, which is applied in textile industry wastewater treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problems of high cost, limited wide application, and high energy consumption in operation. Achieve the effect of low cost, good treatment effect and reliable operation

Inactive Publication Date: 2013-11-13
山东蓝天节能环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the shortcomings of the fiber membrane itself, its wide application in the advanced treatment of industrial wastewater and domestic wastewater is limited.
First, the cost of membrane materials and membrane components is expensive and the life of the organic membrane is not long; second, to achieve the goal of high-efficiency separation, the effective pore size of the membrane is extremely small, so the operating energy consumption is very high
Due to the large amount of reuse of wastewater after treatment, and the water quality standard of reused water can be slightly lower than the corresponding water quality standard in many aspects, so the use of membrane technology to treat wastewater requires huge investment and high operation and maintenance costs. sex

Method used

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  • High-salinity high-chromaticity printing and dyeing wastewater recovery process and equipment thereof
  • High-salinity high-chromaticity printing and dyeing wastewater recovery process and equipment thereof
  • High-salinity high-chromaticity printing and dyeing wastewater recovery process and equipment thereof

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Effect test

Embodiment 1

[0039] A recovery process for printing and dyeing wastewater with high salinity and high chroma, comprising the following steps:

[0040] (1) After the high-salinity wastewater generated in the printing and dyeing process is collected, it enters the wastewater regulating tank 1, and the first chemical acid, such as hydrochloric acid, is added to adjust the pH=6, and the wastewater in the regulating tank 1 is aerated and stirred by the blower unit 8 , the air-water ratio is kept at 3:1 to achieve the purpose of homogeneity and quantity;

[0041] (2) The wastewater in the regulating tank 1 is lifted to the first advanced oxidation device 2 through the wastewater lifting pump 9 to dissolve the second drug Fe 2+ , the third drug H 2 o 2 Enter the mixing reactor 16 after being mixed with waste water in the pipeline mixer 11, and the dosing amount is: 0.8g / L Fe 2+ , 1.2ml / L H 2 o 2 , reaction time 30min, TiO in the first advanced oxidation device 2 2 Under the catalysis of lay...

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Abstract

The invention discloses a high-salinity high-chromaticity printing and dyeing wastewater recovery process and equipment thereof. The process comprises the steps of primary acidity regulation, primary oxidation, secondary oxidation and filtering. The equipment comprises a regulation pool, a first advanced oxidation device, a second advanced oxidation device, a filtering device and a purification storage tank which are successively connected. The high-salinity high-chromaticity printing and dyeing wastewater recovery process and equipment thereof have the advantages of not only solving the difficulty that the high-salinity high-chromaticity printing and dyeing wastewater is difficultly treated, but also providing a set of low-cost, efficient and stable solution way for the high-salinity wastewater.

Description

technical field [0001] The invention relates to a waste water recovery process, in particular to a high salinity high chroma printing and dyeing waste water recovery process and its equipment, belonging to the field of waste water recovery. Background technique [0002] Due to the "water crisis", many countries and regions are actively consolidating and strengthening water-saving awareness and researching industrial wastewater regeneration and reuse, and reusing the water used in industrial production after treatment. Various wastewaters are produced in the textile industry, among which the printing and dyeing wastewater is the most serious. Since the printing and dyeing wastewater contains a large amount of residual dyes and auxiliaries, the wastewater has high chroma. The chromaticity of printing and dyeing wastewater has brought great difficulties to wastewater treatment and reuse, and has become an obstacle to the realization of wastewater resource utilization. [0003...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/08C02F103/30
Inventor 马洪国焦丽苹吕丽萍曹伟杜敦杰
Owner 山东蓝天节能环保科技有限公司
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