Printing and dyeing wastewater regenerant as well as preparation method and use method thereof

A technology for printing and dyeing wastewater and regenerant, applied in the field of textile printing and dyeing, can solve the problems of high equipment and operation requirements, secondary pollution, low recycling rate, etc., and achieve the effect of reducing chroma and shortening the process flow

Active Publication Date: 2022-04-08
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Nowadays, there are many treatment processes for colored wastewater, and the representative method is to directly use chemical methods for treatment. This method has a low recycling rate, and the discharged treated wastewater still contains a large amount of harmful substances, and the cost is high; some people The plasma exchange method is used, which requires extremely high equipment and operation, and there is a problem of secondary pollution

Method used

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  • Printing and dyeing wastewater regenerant as well as preparation method and use method thereof
  • Printing and dyeing wastewater regenerant as well as preparation method and use method thereof
  • Printing and dyeing wastewater regenerant as well as preparation method and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0031]Based on the above regenerative agent, the present application also provides a method of preparing an active dye staining wastewater regenerant, including the following steps:

[0032] According to the quality percentage, the following raw materials were weighed: the complex dispersant of the active dye cluster is 0.1-2%, and the active dye targets the positioning of 0.1-20%, pH regulator 0.1-3%, and deionized water is 75%. -99.7%, the content of the above components is 100%;

[0033] After mixing the complex dispersant and the dissociation of the oxidant, it was mixed with a deionized water of 25-40 ° C, and the pH conditioner was mixed well, stirred and uniform, and then stirred and uniform.

[0034] The active dye printing wastewater regeneration according to the present invention is quite different from conventional wastewater regenerative agents. Specifically, the conventional wastewater regenerant is added to the wastewater treatment process to remove the colored subst...

Embodiment 1

[0037] The preparation process of the active dye staining wastewater regeneration is specifically:

[0038] The above raw materials are weighed in accordance with the components name 1 of Embodiment 1 of Table 1 and the respective components of the components of Embodiment 1 in Table 2.

[0039] The weighing deionized water temperature is adjusted to 20-40 ° C;

[0040] Sodium phenolic condensate, sodium phenolic acid, sodium sulfate is sequentially added to 20-40 ° C deionized water, stirred is mixed, and sodium acetate is mixed, and then stirred again and uniformly to obtain a regenerative dye.

Embodiment 2-28

[0042] Embodiment 2-28 The preparation process of Example 2 is identical, and the specific formulation (chemical name and content of each component), respectively, see the components 2-28 in Table 1, respectively, in Table 2 Embodiment No. 2-28 corresponds to a mass percentage of mass.

[0043] Table 1 Structure information of compounds in Examples 1-28

[0044]

[0045]

[0046]

[0047]

[0048]

[0049] Table 2 Example 1-28 Additives Composition ratio

[0050]

[0051]

[0052] In the above embodiment, the structural information of A, B, and C is shown in Table 2.

[0053] In use, the amount of wastewater regeneration is added in accordance with 3-5% of the mass of the soap.

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Abstract

The invention discloses a printing and dyeing wastewater regenerant as well as a preparation method and a use method thereof, the printing and dyeing wastewater regenerant is applied to printing and dyeing wastewater of reactive dyes and comprises the following components in percentage by mass: 0.1-2% of a dye molecular cluster complexing dispersant, 0.1-20% of a chromophoric group targeted positioning dissociation oxidant and 0.1-3% of a pH regulator. The printing and dyeing wastewater regenerant prepared by the invention can effectively reduce the conventional reactive dye soaping post-treatment operation procedures, and has remarkable water-saving, energy-saving and emission-reducing benefits.

Description

Technical field: [0001] The present invention relates to the field of textile printing and dyeing techniques, and more particularly to an active dye printing and dyed water regeneration and preparation method and method of use. Background technique: [0002] Printing and dyeing is a key link to improve textile quality and added value, but it is also the main contributor of textile wastewater. According to incomplete statistics, approximately 300-4 million tons of printing and dyeing waste water will be discharged throughout the country, accounting for 80% of the sewage discharge of the entire textile industry. This is also an important reason for the top three of the textile wastewater. For cellulose textiles, the active dye is the only synthetic dye that can covalently bonded to cellulose fibers, which is widely used in the textile dyeing process. Each ton of cellulose fibers are dyed, 120 tons of water, 30-90kg active dyes, 600-800KG inorganic salts, activated dye staining wast...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/72C02F101/30
Inventor 舒大武王佳雨李海瑞单巨川胡雪敏安芳芳朱博轩白赛豪
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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