| 久效磷在黄河水体沉积物中的吸附特征及机理 |
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| 引用本文： | 李桂芝,刘永明.久效磷在黄河水体沉积物中的吸附特征及机理[J].环境科学与技术,2001,24(2):23-25,39. |
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| 作者姓名： | 李桂芝 刘永明 |
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| 作者单位： | 烟台大学化学学院, |
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| 摘 要： | 研究了黄河水体沉积物对有机磷农药久效磷的吸附特性及机理 ,结果表明 ,沉积物对黄河水中久效磷的吸附符合 L angmuir和 Freundlich等温式 ,是分配作用和表面吸附共同作用的结果。对分配作用和表面吸附在沉积物吸附久效磷中的相对贡献率进行了定量描述 :它们均为浓度的函数 ,吸附作用以分配作用为主。
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| 关 键 词： | 久效磷 黄河水 沉积物 吸附 |
| 文章编号： | 1003-6504(2001)02-0023-03 |
The characteristics and mechanisms for adsorption of monocrotophos on Yellow Riv er's sediments |
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| LI Gui zhi,LIU Yong ming.The characteristics and mechanisms for adsorption of monocrotophos on Yellow Riv er''s sediments[J].Environmental Science and Technology,2001,24(2):23-25,39. |
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| Authors: | LI Gui zhi LIU Yong ming |
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| Abstract: | The mechanisms and characteristics of the interactions between monocrotophos and Yellow River's sediments was discussed. Sorption isotherms of monocrophos is typically nonlinear,and the isotherms fit closely to Freundlich or Langmuir equation. Both adsorption and partition occur to the sorption of monocrophos to Yellow River's sediments,but partition is the predominant.. The separate contribution of adsorption and partition to the total sorption of monocrophos to Yellow River's sediments are analyzed mathematically;the relative effect is a function of the equilibrium concentration of monocrophos. |
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| Keywords: | Monocrotophos Yellow River Sediments Adsorption |
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