海泡石改性及在铅锌废水处理中的应用研究

Research on Modification and Application of Sepiolite in Lead and Zinc Contained Wastewater Treatment

在介绍海泡石的酸改性、热改性、酸热改性、磁改性和有机改性的基础上,指出改性海泡石在提高海泡石比表面积及吸附性能方面具有明显的优势。介绍了酸热改性和磁改性海泡石对铅锌废水处理的应用,对吸附饱和的海泡石的再生进行了简单概括。海泡石处理铅锌废水是"以废治废"的污水处理技术,具有良好的发展前景。

In this paper, on basis of the introduction of common methods for sepiolite modification, such as acid-modlfication, heat-modification, acid/heat-modification, magnetic-modification and organic-modifi- cation, it was pointed out that the modified sepiolite had obvious advantages in improving specific surface area and adsorption performance of the sepiolite. Meanwhile, the application of acid/heat-modified and magnetic-modified sepiolite in Lead and Zinc contained wastewater treatment were introduced, and the re- generation of sepiolite of saturate adsorption was briefly summarized. Lead and Zinc contained wastewater treatment by sepiolite is a ＂treat waste by waste＂ wastewater treatment technology with good prospect for development.