Dechlorination of Chlorinated Aliphatic Compounds by Micro-scale Al-Zn-Mg/Fe Powders as Advanced Zer

来源 :Chinese Journal of Chemical Engineering | 被引量 : 0次 | 上传用户:a421455206a
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Micro-scale Al-Zn-Mg/Fe composite powders (MAF) with high reactivity and good storage properties were prepared by reducing iron onto the surface of Al-Zn-Mg alloy powders. Experimental results show that MAF as advanced zero-valent iron are highly effective for degradation of chlorinated organic compounds. The efficiency of degradation for carbon tetrachloride and perchloroethylene is higher than 99% within a period of 2 h. The efficiency of degradation for trichloroethylene by MAF after storing for one month is equivalent to that by freshly prepared nano-size zero-valent iron particles. Micro-scale Al-Zn-Mg / Fe composite powders (MAF) with high reactivity and good storage properties were prepared by reducing iron onto the surface of Al-Zn-Mg alloy powders. Experimental results show that MAF as advanced zero-valent iron The efficiency of degradation for carbon tetrachloride and perchlorethylene is higher than 99% within a period of 2 h. The efficiency of degradation for trichlorethylene by MAF after storing for one month is equivalent to that by freshly prepared nano-size zero-valent iron particles.
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