摘要
为进一步证实通过液相还原法制备的FeS改性纳米Fe^0复合材料去除Cr(Ⅵ)的可行性,考察了动态环境中不同初始Cr(Ⅵ)污染浓度条件下,Fe^0@FeS复合材料去除Cr(Ⅵ)的能力。结果发现;Fe^0@FeS复合材料可以用于处理含Cr(Ⅵ)地下水;此外,随着模拟地下水中Cr(Ⅵ)初始质量浓度提高,复合材料对Cr(Ⅵ)的去除作用受到阻滞,去除容量减小。解吸实验表明,Fe^0@FeS复合材料能够安全地还原沉淀Cr(Ⅵ),也不会对环境产生二次污染。
In order to verify the feasibility of removing Cr(Ⅵ)with FeS modified nano-FeO composite prepared by liquid phase reduction method,this paper investigates the ability of removing Cr(Ⅵ)by Fe^0@FeS composite under different initial Cr(Ⅵ)pollution concentration in dynamic conditions.It was found that Fe^0@FeS composite material could be used to treat groundwater containing Cr(Ⅵ).In addition,with the increasing of initial mass concentration of Cr(Ⅵ)in simulated groundwater,the removal effect of composite materials on Cr(Ⅵ)is blocked and the removal capacity decreases.And the desorption experiments show that Fe^0@FeS composite can safely reduce the concentration of Cr(Ⅵ)without secondary pollution to the environment.
作者
陆承航
杜江坤
郑汉
LU Chenghang;DU Jiangkun;ZHENG Han(School of Medicine,Hubei Polytechnic University,Huangshi Hubei 435003;Hubei Key Laboratory of Mine Environmental Pollution Control and Remediation,Hubei Polytechnic University,Huangshi Hubei 435003;School of Environmental Studies,China University of Geosciences(Wuhan),Wuhan Hubei 430074)
出处
《湖北理工学院学报》
2020年第5期49-52,共4页
Journal of Hubei Polytechnic University
