Method for degradation of organochloride

An organic chloride and degumming technology, applied in chemical instruments and methods, water pollutants, water/sludge/sewage treatment, etc., can solve the problems of reduced activity, cumbersome biological methods, and difficult control

Inactive Publication Date: 2009-02-18
CHONGQING UNIV
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Problems solved by technology

Among them, the physical method is not effective, and the biological method is too cumbersome and difficult to control. In the chemical method, the reduction and degradation of organic chlorides with zero-valent ir...

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  • Method for degradation of organochloride
  • Method for degradation of organochloride
  • Method for degradation of organochloride

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Embodiment Construction

[0013] A method for degrading organic chlorides, the method is to use an adsorbent to adsorb organic chlorides contained in waste water. In the present invention, the adsorbent is a hollow glass microsphere whose surface is plated with a Fe-Ni alloy layer. The method comprises the steps of:

[0014] 1. Modification of hollow glass microspheres

[0015] a. The hollow glass microspheres are pretreated in the order of degreasing cleaning, coarsening, activation, reduction, degumming and post-degumming cleaning;

[0016] B, the surface of the hollow glass microspheres cleaned after degumming, plating Fe-Ni alloy layer with liquid phase electroless plating, then, cleaning, drying; In Fe-Ni alloy layer, Fe: Ni=2: 1 ~3:1;

[0017] 2. Degradation of organic chlorides with modified hollow glass microspheres

[0018] c. Fully mix the hollow glass microspheres coated with the Fe-Ni alloy layer with the waste water containing organic chloride according to the mass ratio of 1% to 1.2%,...

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Abstract

The invention relates to a method for degrading the chloride, which comprises the following steps: firstly the surface of the hollow glass micro balloon is loaded with the iron and nickel dual-metal particles so as to modify the surface of the hollow glass micro balloon in liquid-phaseelectroless plating way; secondly, the modified hollow glass micro balloon is adopted as the absorption agent, the restoration agent and the catalyst to degrade the organic chloride. On the one hand, the problem of the load of the catalyst (Fe-Ni) is resolved; on the other hand, the surface area of the catalyst is enlarged, so that the active center of the reaction is increased; moreover, after heating and promoting with the micro wave in the reaction, a plurality of heat points can be generated on the surface of the hollow glass micro balloon, thereby greatly improving the absorption efficiency of the micro-wave energy. Under the cooperative effect of the absorption of the modified hollow glass micro balloon and the inducement of the micro wave, the degradation of the organic chloride is more efficient and more thorough. The method is simple to be operated, and is free from generating the toxic intermediate bodies, and has good effect to degrade the organic chloride, and is a good method for processing the organic chloride waste water.

Description

technical field [0001] The present invention relates to a method for degrading organic chlorides. Background technique [0002] Organic chlorides include chlorinated alkanes, chlorinated alkenes, chlorinated aromatics, and organochlorine pesticides. With the development of the organic chemical industry, it has been widely used in medicine, tanning, electronics and pesticides, etc., resulting in a large amount of chlorine-containing compounds and intermediate products or by-products in the synthesis process being discharged into the environment in large quantities. Some organic chlorides in the environment will deplete the ozone in the atmosphere, and some will harm the human central nervous system and induce cancer. Almost all chlorinated aromatic hydrocarbons and their derivatives are toxic and difficult to degrade, and a considerable part of them are listed as priority pollutants for environmental control by the US EPA. Such pollutants are chemically stable, and once the...

Claims

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Application Information

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IPC IPC(8): C02F1/28C02F1/58C02F101/36
Inventor 陶长元刘作华杜军刘仁龙左赵宏唐敏
Owner CHONGQING UNIV
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