【摘要】 对多氯联苯在多组分体系中的吸附行为进行了初步研究, 考察了多氯联苯在土壤中的 吸附动力学及在5种不同性质土壤中的吸附行为.结果表明,多氯联苯在5种土壤上的吸附等温 线无法用线性、Freundlich或Langmuir中的一个方程来描述,而本实验建立的组合模型可以 很好地反映多氯联苯在各种土壤中的吸附行为,其数据拟合结果明显优于其他3种模型.多氯 联苯在土壤中的吸附分为两个部分,一部分是线性吸附,另一部分是Langmuir非线性吸附.随 着土壤有机碳含量的增加, 非线性吸附愈明显.更多还原

【Abstract】 ：The adsorption behavior of PCBs in multi-component system was studied preliminarily. The adsorption kinetics in soil and this behavior in five kinds o f soil with different properties were investigated. The results showed that thei r adsorption isotherms could not be described by linear, Langmuir or Freundlich equation; while the composite model established in this experiment could well re flect the adsorption behavior, and its data was better-fit than the other three models. The adsorption of PCBs on soils consisted of linear fraction and Langmui r non-linear fraction. The non-linear fraction became more significant as the or ganic matter content of soil increased.更多还原