Abstract
This research discusses adsorption of 2,4,6-trichlorophenol (TCP) using coir pith carbon produced from agricultural by-products. Batch mode studies investigated the essential adsorption aspects like initial adsorbate concentration, dosage of adsorbent, varying pH and temperature. The mechanism of kinetic adsorption was rapid, attaining equilibrium at 50 and 110 min for concentrations of TCP (10–40 mg/L). Experimental kinetic data revealed excellent match for second order kinetic. Only Freundlich followed the isothermic adsorption data and pH 2.0 was appropriate for TCP adsorption. Desorption experiments have shown that chemical adsorption plays a significant role that has also been supported by studies of thermodynamic factors like standard enthalpy, entropy and free energy.
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