Abstract
The effects of exchangeable cations (H+ and Na+), organic matter, non-ionic and anionic surfactants, and temperature on the sorption of endosulphan on two different types of soils were studied. Adsorption studies were performed using the batch technique and adsorption isotherms for all effects/treatments were in close agreement with the Freundlich equation. The adsorptive capacity of endosulphan towards organic matter and clay content in the natural forms of both soils was also evaluated by calculating the corresponding values of the specific adsorption capacity for organic matter, Kom, and the clay content, Kc. Various thermodynamic parameters such as the thermodynamic equilibrium constant (K0), standard free energy changes (ΔG0), standard enthalpy changes (ΔH0) and standard entropy changes (ΔS0) have been calculated in order to predict the nature of the isotherms.
Published Version
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