Experimental evaluation of arsenic removal methods from water

摘要：

In this work we present comparison of three methods of Arsenic removal viz. 1) electrically generated hydrous ferric oxide (EHFO) 2) hydrous ferric oxide (HFO) generated by iron salt 3) Soil biotechnology (SBT) for As(Ⅲ) oxidation to As(Ⅴ) and subsequent chemical precipitation with iron. It is found the residual arsenic in water for EHFO and SBT is below 10ppb and for HFO below 20ppb. It is also shown that arsenic on solid iron residue for EHFO is 160μg/mg iron, HFO is 60μg/mg iron for As(Ⅲ), SBT is 150μg/mg iron. XRD, FTIR, XRF analysis of the arsenic rich iron residue is presented.

关键词： Keywords: Hydrous ferric oxide arsenic adsorption Soil biotechnology

作者: Pravin D. Nemade A. M. Kadam G. H. Oza H. S. Shankar

作者单位: Department of Chemical Engineering, Indian Institute of Technology, Bombay, Powai, Mumbai-400076, India

会议类型: 国际会议

会议名称: 第九届痕量元素生物地球化学国际会议(9th International Conference on the Biogeochemistry of Trace Elements)

会议地点: 北京

会议语种:英文

页码: 859-860

在线出版日期: 2007-07-15（万方平台首次上网日期，不代表论文的发表时间）