零价铁还原和吸附去除水中污染物的研究进展

近年来,零价铁以其低毒、廉价、易操作且对环境不会产生二次污染等优点,在水污染治理中受到重视。文章介绍了零价铁处理污水的机理,对利用零价铁的还原和吸附作用去除污水中的氯代有机物、硝基芳香族化合物、偶氮染料、重金属、高氯酸盐、硝酸盐等的研究情况进行了综述,指出了零价铁废水处理技术的研究方向。

Development of Applying Zero-Valent Iron for Reduction and Adsorption of Contaminants in Wastewater

In recent years,zero-valent iron has been paid attention to its application in the wastewater treatment due to its low toxicity,low cost,easy operation and no secondary pollution.In this paper,the mechanism of wastewater treatment with zero-valent iron is reviewed.Also the research in treating various kinds of contaminants by zero-valent iron's action of reduction and adsorption is reviewed.These contaminants include chloro-organic compounds,nitro-aromatic compounds,azo dye,heavy metal,perchlorate,nitrate,etc.In the end,further research directions of zero-valent iron are pointed out.