环境工程学报2009，Vol.3Issue(11)：2100-2104,5.
改性长石对磷的吸附热力学和动力学研究
Thermodynamic and kinetic of phosphorus adsorption onto calcined feldspar
胡绳 1刘云 2董元华 1王萍1
作者信息
- 1. 中国科学院南京土壤研究所土壤与农业可持续发展国家重点实验室,南京,210008
- 2. 兰州交通大学环境与市政工程学院,兰州,730070
- 折叠
摘要
Abstract
The thermodynamics and the kinetics of the phosphorus adsorption on feldspar calcined at 500 ℃ for 2 hours were studied by the sets of equilibrium and time-based experiments under various conditions. The results showed that adsorption isotherms of phosphorus were modeled by Freundlich model, and the parameters indicated that the adsorption of phosphorus on feldspar was strongly dependent on tempreture and the adsorption of phosphorus increased with increasing tempreture of the system. Furthermore, the adsorption process reached e-quilibrium in 60 minutes, and the kinetics adsorption of phosphorus can be described by pseudo-second-order rate very well.关键词
长石/除磷/吸附/动力学/热力学Key words
feldspar/ phosphorus removal/ adsorption/ kinetics/ thermodynamics分类
资源环境引用本文复制引用
胡绳,刘云,董元华,王萍..改性长石对磷的吸附热力学和动力学研究[J].环境工程学报,2009,3(11):2100-2104,5.
