摘要
过滤工艺广泛应用于水处理领域,滤料表面电位对水中离子的过滤去除有很大的影响。采用反复沉积法制备改性石英砂,进行了含Cr(Ⅵ)废水的静态吸附实验,并考察了pH值、Cr(Ⅵ)质量浓度、Al(Ⅲ)金属阳离子等因素对吸附的影响,同时测定滤料表面电位。
Filtrating process is used widely in water treatment. Deep bed filtrating effect is influenced by surface potential of filtering media greatly. Iron oxide coated sand was prepared by sediment repeatedly. Test of Cr（VI） adsorption on iron oxide coated sand was conducted, and the influence upon the adsorption of some factors,such as pH value,consistency of Cr（ VI ） ,AI（ Ⅲ） was studied,and measured the surface potential of iron oxide coated sand.
出处
《化工科技》
CAS
2009年第4期26-28,共3页
Science & Technology in Chemical Industry
关键词
过滤
表面电位
Cr(Ⅵ)
涂铁石英砂
Filtratering
Surface potential
Cr（ VI ）
Iron oxide coated sand
