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Received December 06, 1996,Revised , Accepted , Available online

Volume 9,1997,Pages 337-344

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The sorption and desorption kinetics of dimethyl phthalate (DMP), diethyl phthalate (DEP), dibutyl phthalate (DBP) and phenol on water and sediment interface were studied using two compartment model in this paper. The results showed that the sorption coefficients of DMP, DEP, DBP and phenol measured by batch equilibrium method were 16.79, 24.55, 132 and 0.65μg1-1/n· g-1 · ml-1/n, the sorption and desorption kinetic constants of DMP, DEP, DBP, phenol were 0.0248, 0.0357, 0.0727, 0.014ml·cm-2 ·h-1 and 0.000512, 0.000754, 0.00127, 0 000899h-1 at static condition respectively; and the sorption and desorption kinetics constants of above chemicals were 0 279, 0.382, 0.496, 0.0904ml·cm-2 ·h-1 and 0.0442, 0.0031, 0.00116, 0.00247h-1 at flow water condition respectively.

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