Experiment Study on Treatment of Chromium(Ⅵ)-Containing Groundwater by Modified Synthetic Zeolite

摘要：

　　In order to improve the removal ability of hexavalent chromium on the synthetic zeolite,the synthetic zeolite was modified by FeSO4,which was used to removal hexavalent chromium in groundwater.The results showed that the concentration of Cr(Ⅵ) can be reduced from 5.0mg/l to 0.03 mg/l,which meets the requirements of groundwater standards(0.05mg/l) by using modified zeolite in a liquid-to-solid ratio of 20 ml/g,pH=3 for 120 minutes.The adsorption of Cr(Ⅵ) on the modified synthetic zeolite could be described by the Langrnuir and Freundlich adsorption isotherm.It is showed that the synthetic zeolite modified by FeSO4 has good treatment effect and after treatment the pH of groundwater can reach around 6.8,which need no more pH adjustment.

关键词： Synthetic zeolite, Iron vitriol Cr(Ⅵ), Groundwater, Adsorption isotherm

作者: Yujie Huang Huanzhen Zhang

作者单位: School of Water Resources & Environment, China University of Geosciences, Beijing 100083, PR China

会议类型: 国际会议

会议名称: the 2012 International Conference on Frontiers of Advanced Materials and Engineering Technology (2012年先进材料与工程技术国际会议(FAMET 2012))

会议地点: 厦门

会议语种:英文

页码: 1253-1256

在线出版日期: 2012-01-04（万方平台首次上网日期，不代表论文的发表时间）