The Adsorption of Cadmium by Goethite and Manganite Under Alkaline Conditions
详细信息
- 责任者：Zeng Xiangfeng (Tianjin Key Lab. of Water Environment and Water Resources ; Tianjin Normal University ; Tianjin 300384 ; China) ; Wang Zuwei
- 刊名：Geology in China
- 出版年：2011
- 卷期：38(1)
- 关键词：针铁矿 ; goethite ; 软锰矿 ; pyrolusite ; 镉 ; cadmium
- 页码：p.212-217
- 图表：4 illus., 4 tables, 26 refs.
- 分类号：1800
- issnNo：ISSN1000-3657
- isbnNo：CN11-1167/P
摘要
The adsorption of cadmium by goethite and manganite was experimentally studied. The adsorption quantity of cadmium by goethite and manganite increased with the increase of pH from acid to neutral and reached the maximum under the alkaline condition. After the adsorption of cadmium by goethite and manganite happened, the pH values of the solutions were changed, and the critical pH values were 8 for goethite and 6.5 for manganite. The adsorption balance time of goethite and manganite for cadmium was 6 hours. The adsorption isotherms were consistent with Freundlich isothermal equation. The adsorption effect of goethite and manganite for cadmium was ideal at the room temperature.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |