Adsorption Models of Groundwater Remediation by Nanoscale Zero Valent Iron

摘要：

　　Nanoscale zero valent iron(nZVI)has shown great potential in the remediation of contaminated groundwater.For many different types of contaminant,adsorption was the main remediation mechanism,so it is necessary to figure out the adsorption models of remediation by nZVI.In this study,copper ion,phosphate anion and methyl orange were used respectively as simulative pollutants to investigate the remediation capacity of nZVI.Langmuir model and Freudlich model were used to describe the adsorption isotherm.Furthermore,kinetic model was established to describe the remediation process.It was found that nZVI exhibited high efficiency in the remediation of various types of contaminants.This study promoted further understanding of the remediation mechanism and kinetic process of groundwater remediation by nZVI.

关键词： Nanoscale zero valent iron (nZVI) Copper ion Phosphate anion Methyl orange Adsorption isotherm Kinetic model

作者: Dantong Lin Zifu Zhang Liming Hu

作者单位: State Key Laboratory of Hydro-Science and Engineering,Department of Hydraulic Engineering,Tsinghua University,Beijing,China

会议类型: 国际会议

会议名称: The 8th International Congress on Environmental Geotechnics(第八届国际环境土工大会)

会议地点: 杭州

会议语种:英文

页码: 512-520

在线出版日期: 2018-10-28（万方平台首次上网日期，不代表论文的发表时间）