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• 基金项目：国家自然科学基金(29100036)

• 全燮

• 薛大明

• 赵雅芝

• 陈捷

• 杨凤林

• 摘要：以粘土矿物、金属氧化物、碳酸钙和腐殖酸为近海沉积物模拟样品进行了吸附γ-666的实验研究。根据模拟实验得到的吸附规律,将实际近海沉积物样品进行了化学浸取,分离掉其中的有机质,通过浸取与未浸取沉积物对两种毒性有机物的吸附实验,建立了沉积物中无机质和有机质组分吸附疏水性有机物的二组分吸附模式。用该模式解释了过去难以解释的实验现象。

• Abstract：The sorption isotherms of lindane on clay minerals, carbonate, organic matter and metal oxides were determined by the simulating sorption experiment. The result showed that the sorption isotherms of lindane on inorganic matters were able to be fitted by Langmuir sorption form, but on organic matter was by a linear form. Based on the result of the simulating experiment, the submarine sediment was separated into two fractions with sequential extraction procedure. After sorption experiment of lindane on the two graded submarine sedimnets, a twocomponent sorption model (corresponding to organic and inorganic components) was established. Several confusing phenomena were explained with the model.

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