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为探讨黄河水体沉积物对邻苯二甲酸二甲酯(DMP)的吸附能力,用批量平衡法研究了沉积物与DMP的吸附作用。结果表明:吸附等温线符合Freundlich方程,通过回归分析,分别得出20t和 15CDMP在黄河水中的等温方程C。=03488 x C。。“””和C。03354 X Ce。‘’“’。因指数项常数小于 1,说明沉积物对DMP的吸附不随溶液中 DMP的浓度成正比例增加。黄河水体沉积物对DMP有一定的净化能力。
In order to investigate the adsorption capacity of sediment from the Yellow River to dimethyl phthalate (DMP), the adsorption of DMP and sediment was studied by batch equilibrium method. The results show that the adsorption isotherms fit the Freundlich equation, and the isothermal equations C of 20t and 15CDMP in the Yellow River water are obtained respectively by regression analysis. = 03488 x C. . “” And C.03354 X Ce. ’’ ’’. The index constant is less than 1, indicating that the adsorption of DMP on sediments does not increase proportionally with the concentration of DMP in solution. Yellow River sediments have certain purification ability to DMP.