海水中酚类有机物在粘土或沉积物上吸附特性的模拟研究

研究了海水中７种酚类有机污染物在粘土矿物及海洋沉积物上的吸附特征；发现了酚在粘土或沉积物上的吸附平衡常数与其水溶解度之间的线性自由能关系，。

SIMULATED STUDY ON ADSORPTION FEATURES OF ORGANIC PHENOLS ON CLAYS AND SEDIMENTS IN SEAWATER

The adsorption behavior of seven types of phenols in seawater was investigated on clay minerals (including montmorillonite, illinite and kaolinite) and marine sediment treated by a sequential procedure. A linear free energy relationship was found between phenolic adsorption equilibrium constant (K) or partition coefficient (K_(oc)) and their water solubility. The order of phenolic adsorption capacity in each type of clay mineral or sediment was 2, 4, 6-trichlorophenol > o-nitrophenol > 2, 4-dichlorophenol > 2, 4-dinitrophenol > p-nitrophenol > p-chlorophenol > o-chlorophenol, in reverse order of phenolic water solubility. Phenolic adsorption tendency of various sediments was controlled by the sediment organic carbon content.