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Composite system for rapidly and efficiently degrading organic dyestuff and preparation method

An organic dye, high-efficiency technology, applied in chemical instruments and methods, catalyst activation/preparation, water pollutants, etc., to achieve excellent degradation rate, solve secondary pollution, and not easy to lose the effect

Inactive Publication Date: 2017-09-01
徐靖才
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the deficiencies of existing water pollution treatment methods, to provide a 2 o 4 / AC-PMS composite system for rapid and efficient removal of organic dyes

Method used

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  • Composite system for rapidly and efficiently degrading organic dyestuff and preparation method
  • Composite system for rapidly and efficiently degrading organic dyestuff and preparation method
  • Composite system for rapidly and efficiently degrading organic dyestuff and preparation method

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specific Embodiment approach 1

[0022] Specific implementation plan one: using CoFe 2 o 4 / AC-PMS composite system is a method for quickly and efficiently degrading organic dyes in water, specifically as follows: 1. Synthesis of CoFe by chemical co-precipitation 2 o 4 / AC composite material: Grind the activated carbon and pass it through a 200-mesh sieve. Use strong alkali (KOH) to modify the surface of the activated carbon by heating at 900°C for 10 hours in a nitrogen atmosphere, wash until neutral, and then dry it for later use. Weigh 0.008 mmoL FeCl 3 ·6H 2 O, 0.004 mmoL CoCl 2 ·6H 2 Dissolve O and 9.6g activated carbon in 100mL deionized water, stir magnetically for more than 12 hours, add 100mL1mol / L sodium hydroxide solution, continue stirring for a period of time to fully precipitate metal ions, filter and wash the precipitate to neutrality, and place it in blast drying Dry in the oven with 5% H 2 Calcined at 780°C for 4h in / Ar mixed gas, cooled to room temperature, ground and pulverized the ...

specific Embodiment approach 2

[0024] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the amount of activated carbon in Step 1 is 4.8 g, and the sintering conditions are 520° C. and 6 h. Others are the same as the first embodiment.

specific Embodiment approach 3

[0025] Specific embodiment three: the difference between this embodiment and specific embodiment one is: the amount of activated carbon in step one is 2.4g. Others are the same as the first embodiment.

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Abstract

The invention relates to a magnetic active carbon composite material-potassium monopersulfate (PMS) composite system and a preparation method, which can be used for rapidly and efficiently degrading organic dyestuff in a water body and realizing rapid separation and belongs to the technical field of environment functional materials and water pollution control. According to the technology provided by the invention, a magnetic active carbon composite material is compounded with PMS composite salt to generate a sulfate free radical so that the organic dyestuff can be rapidly oxidized and decomposed, up-to-standard emission is realized and the organic dyestuff can be recycled by a magnetic field. The composite system and the preparation method have the advantages that the operation is simple and feasible, raw materials are various, the treatment efficiency is high, the energy consumption is small and the cost is low; the composite system is suitable for treating a lot of sewage and magnetic active carbon is easy to recycle; secondary pollution to the environment is not caused.

Description

technical field [0001] The invention relates to a method and application for rapidly and efficiently degrading organic dyes in water by using a magnetic activated carbon composite material-potassium persulfate (PMS) composite system, and belongs to the technical field of environmental functional materials and water pollution control. Background technique [0002] my country is a big dye production country, and the textile dye industry has developed rapidly in recent years. At present, the output of various dyes in my country has reached 900,000 tons, and the output of dyes accounts for about 60% of the world. With the continuous development of dye industry production technology and increasing output, a large amount of dye wastewater has been produced. If the organic dyes in these wastewater are directly discharged into the environment without a certain explanation, it will cause serious damage to human health. Physical adsorption is considered to be a simple, effective, envi...

Claims

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Application Information

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IPC IPC(8): C02F1/28C02F1/48C02F1/72B01J23/75C02F101/30
CPCB01J23/75B01J37/03C02F1/283C02F1/488C02F1/722C02F1/725C02F2101/308
Inventor 王新庆魏俊麒徐靖才金顶峰彭晓领洪波金红晓葛洪良
Owner 徐靖才
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