生态与农村环境学报2011，Vol.27Issue(2)：109-112,4.
红色黏土对磷的吸附性能及其机理初探
Phosphorus Adsorption of Red Clay and Its Mechanism.
摘要
Abstract
Physical and chemical properties of 11 different types of red clays collected from the sub-layer (20 -40 cm) of wastelands in Yingtan of Jiangxi and Yixing of Jiangsu were analyzed and their performances of phosphorus adsorption in 2 solutions different in concentration (35 and 50 mg · L-1 ) were compared. Results show that the phosphorus adsorption capacites of the samples in the two solutions varied in the range of 0. 52 -0. 86 and 0. 52 - 1.18 mg· g-1, separately. Of the samples, S9 which was collected from Jiangsu demonstrated the highest P removal rate, being over 90％ in beth solutions. It was also found that iron and aluminum oxides in the red clays were the dominant controlling factors. They combined most of the phosphorus in the solutions, forming insoluble Fe-P and AI-P. The content of aluminum oxide was significantly and positively related to phosphorus removal rate. Therefore, it is advisable to add a proper amount of iron and aluminum oxides into red clay or some other adsorbents to improve their phosphorus adsorption capacity.关键词
红色黏土/磷/吸附/水体Key words
red clay/ phosphorus/ adsorption/ water body分类
资源环境引用本文复制引用
王伟,杭小帅,张毅敏,依艳丽..红色黏土对磷的吸附性能及其机理初探[J].生态与农村环境学报,2011,27(2):109-112,4.基金项目
中央级公益性科研院所基本科研业务专项 （）
国家水体污染与治理科技重大专项(2008ZX07101-007) （2008ZX07101-007）
