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   作者單位： Institute of Environmental Science, Zhejiang University, Hangzhou 310027, China  刊 名： 環(huán)境科學學報(英文版)  ISTIC SCI 英文刊名： JOURNAL OF ENVIRONMENTAL SCIENCES  年，卷(期)： 2003 15(4)  分類號： X53  關鍵詞： triazine herbicide   soil   adsorption   excess thermodynamic properties  

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