Adsorption and correlation with their thermodynamic properties of triazine herbicides on soils
Adsorption of atrazine, prometryne and prometon was determined on six soils with different physical and chemical properties. Theadsorption isotherms of three herbicides could well fit Freundlich equation. On all of six soils, adsorption of herbicides increased in the order:atrazine ≈ prometon ＜ prometryne. This order is quite the same to the calculation result of by means of excess thermodynamic properties oftriazine. The Freundlich adsorption constants, Kf, showed to have good correlation with organic matter(OM%) of soils for each of theseherbicides, suggesting that OM is the main factor, which dominates in the adsorption process of these triazine herbicides.
作 者： YANG Wei-chun LIU Wei-ping LIU Hui-jun LIU Guang-shen 作者单位： Institute of Environmental Science, Zhejiang University, Hangzhou 310027, China 刊 名： 环境科学学报(英文版) ISTIC SCI 英文刊名： JOURNAL OF ENVIRONMENTAL SCIENCES 年，卷(期)： 2003 15(4) 分类号： X53 关键词： triazine herbicide soil adsorption excess thermodynamic properties