改性膨润土处理重金属离子废水的研究进展

Research progress of using modified bentonite to that wastewater with heavy metal ions

重金属离子对人体有害,在废水中很难处理,利用廉价吸附剂有效处理重金属离子,既经济又环保。膨润土价廉易得,比表面积大,吸附性好,是一种天然的矿物质吸附剂。文章总结了膨润土吸附重金属离子的机理,并分析了改性膨润土在吸附重金属离子方面的研究进展及存在问题,并提出了解决办法。

Heavy metals are harmful to human body,it is difficult to removal from wastewater,using cheap adsorbent effectively to removal heavy metal ions is both economical and environmental.Bentonite which is cheap,high spicific surface and adsorptivity is a kind of natural mineral adsorbent.The absorption mechanism of bentonite on heavy metals was analyzed.At the end,the existing problems in the disposal of heavy metal wastewater with modified bentonite and research directions were put forward.