涂铁石英砂的制备及其对砷的吸附  

Preparation of Iron Oxide Coated Sand and Adsorption of As

作　　者：黄自力[1] 胡岳华[1] 徐競[1] 

机构地区：[1]中南大学资源加工与生物工程学院,湖南长沙410083

出　　处：《污染防治技术》2003年第4期13-16,共4页Pollution Control Technology

基　　金：国家杰出青年科学基金资助项目(59925412)

摘　　要：采用加热蒸发法制备涂铁石英砂,并对其含铁量、比表面积、氧化铁膜的附着能力、表面形态和氧化铁物相等表面性质进行了研究。用涂铁石英砂进行了含砷废水的吸附实验,并考察了pH值、离子强度、Pb(Ⅱ)金属阳离子、Cr(Ⅵ)氧阴离子等因素对吸附的影响。Surface properties of iron oxide coated sand prepared by heating vaporization ,such as iron content,specific surface area, iron oxide film binding on sand surface, morphologies of IOCS and matter species of iron oxide,were investigated by chemical analysis,BET measurement,SEM and XRDTest of As adsorption on IOCS was conducted,and the influence upon the adsorption of some factors,such as pH value,ion strength,Pb(Ⅱ) metal ion and Cr(Ⅵ) oxygen anion,was studied

关 键 词：涂铁石英砂 砷 吸附 加热蒸发法 废水处理 过滤介质 

分 类 号：X703[环境科学与工程—环境工程]