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A kind of treatment agent for printing and dyeing wastewater and preparation method thereof

A printing and dyeing wastewater and treatment agent technology, which is applied in textile industry wastewater treatment, special compound water treatment, light water/sewage treatment, etc., can solve the problems of low treatment efficiency, complicated recycling, and reduced treatment effect, and achieve simple recycling, The effect of shape stability and structure stability

Active Publication Date: 2021-09-17
浙江中科环境股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a treatment agent for printing and dyeing wastewater and a preparation method thereof, so as to solve the problem of low treatment efficiency of the printing and dyeing wastewater treatment agent in the prior art, complicated recycling after treatment, and the actual treatment after recycling. Disadvantages of obvious decline in effect

Method used

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  • A kind of treatment agent for printing and dyeing wastewater and preparation method thereof
  • A kind of treatment agent for printing and dyeing wastewater and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Mix the phyllosilicate and the hydrochloric acid solution with a mass fraction of 5% according to the mass ratio of 1:5 and pour it into the hydrothermal reaction kettle. After heat preservation and stirring for 1 hour of hydrothermal reaction, release the pressure to normal pressure, discharge the material, filter while it is hot, collect the filter cake, and wash the filter cake with deionized water until the washing liquid is neutral, then vacuum freeze-dry the washed filter cake , to obtain a dry filter cake, and then transfer the dry filter cake into a tube furnace, heat-preserve and roast for 2 hours at a temperature of 150° C., cool to room temperature with the furnace, and discharge the material to obtain a pretreated layered silicate;

[0034] Mix the pretreated layered silicate and graphene oxide at a mass ratio of 1:3, pour into water 50 times the mass of the pretreated layered silicate, and ultrasonically disperse for 2 hours at an ultrasonic frequency of 60 ...

Embodiment 2

[0039] Mix the phyllosilicate and the hydrochloric acid solution with a mass fraction of 8% according to the mass ratio of 1:8 and pour it into the hydrothermal reaction kettle. After heat preservation and stirring for 2 hours of hydrothermal reaction, release the pressure to normal pressure, discharge the material, filter while it is hot, collect the filter cake, and wash the filter cake with deionized water until the washing liquid is neutral, then vacuum freeze-dry the washed filter cake , to obtain a dry filter cake, and then transfer the dry filter cake into a tube furnace, heat-preserve and roast it at 180°C for 2.5 hours, cool to room temperature with the furnace, and discharge the material to obtain a pretreated layered silicate;

[0040] Mix the pretreated layered silicate and graphene oxide at a mass ratio of 1:5, pour into water 60 times the mass of the pretreated layered silicate, and ultrasonically disperse for 3 hours at an ultrasonic frequency of 70 kHz to obtain...

Embodiment 3

[0045] Mix the phyllosilicate and the hydrochloric acid solution with a mass fraction of 10% according to the mass ratio of 1:10 and pour it into the hydrothermal reaction kettle. After heat preservation and stirring for 3 hours of hydrothermal reaction, release the pressure to normal pressure, discharge the material, filter while it is hot, collect the filter cake, and wash the filter cake with deionized water until the washing liquid is neutral, then vacuum freeze-dry the washed filter cake , to obtain a dry filter cake, and then transfer the dry filter cake into a tube furnace, heat-preserve and roast for 3 hours at a temperature of 200° C., cool to room temperature with the furnace, and discharge the material to obtain a pretreated layered silicate;

[0046] Mix the pretreated layered silicate and graphene oxide at a mass ratio of 1:10, pour into water 80 times the mass of the pretreated layered silicate, and ultrasonically disperse for 4 hours at an ultrasonic frequency of...

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Abstract

The invention discloses a treatment agent for printing and dyeing wastewater and a preparation method thereof, belonging to the technical field of sewage treatment. The product developed by the present invention is a layered structure, and the layered structure includes layered silicate and graphene oxide; the mass ratio between the layered silicate and the graphene oxide is 1:3‑1 : 10; the layered silicate and the graphene oxide are at least partly or fully intercalated; the layered silicate and the graphene oxide are connected by chemical bonds; the layered silicate Catalyst powder is embedded between the graphene oxide and the graphene oxide. Among them, the catalyst powder is nano-cobalt titanate powder; in addition, the layered structure is a wrinkled layered structure, and its roughness Ra is not less than 10. The product obtained in the invention has an excellent treatment effect on printing and dyeing wastewater, and the product has stable properties, and can be reused after simple treatment after recovery.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a treatment agent for printing and dyeing wastewater and a preparation method thereof. Background technique [0002] At present, with the vigorous development of industry, the rapid expansion of cities, and the acceleration of rural urbanization, the use of resources is also increasing, especially water resources. my country is a country with scarce water resources. How can we save water? The reuse of resources and water resources has become a concern of people, and in the reuse of water resources, sewage treatment is the most important. More than 95% of cities and enterprises in my country still use the traditional activated sludge method to treat sewage, which has the disadvantages of complex process, large investment, high energy consumption, cumbersome operation and management, and poor treatment effect. At the same time, a large amount of activated sludge will be pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/75B01J35/02C02F1/30C02F103/30
CPCB01J23/75B01J35/004B01J35/02C02F1/30C02F2103/30C02F2305/10
Inventor 黎云
Owner 浙江中科环境股份有限公司
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