Batch studies were conducted for kinetics and equilibrium studies on the biosorption of Phenol from aqueous solution by dried Rice husk biomass. The effect of pH, adsorbent dose, initial phenol concentration and contact time were investigated. Batch kinetic experiments showed that the adsorption followed pseudo-second-order kinetic model. The pH value of 3, contact time of 75 min, adsorbent dosage of 4 g/L and Phenol concentration 25 mg/L were determined as optimum conditions for adsorbents. The most Phenol removal efficiency was 99.1% in optimum conditions. The equilibrium adsorption data were analyzed using four widely applied isotherms: Langmuir, Freundlich, Doubinin–Radushkevich and Temkin. The results revealed that Langmuir isotherm fit the experimental results well. This study showed that dried Rice husk biomass could be used as an efficient sorbent for the removal of phenol from aqueous solution.
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