Studies on adsorption of phenol from wastewater by agricultural waste
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TextPublication details: Journal of Environmental Science & Engineering 2013Description: 275-282Subject(s): Summary: In this paper, preliminary investigation of various agricultural wastes-Rice mill residue(RM), Wheat mill reside (WM), Dall mill residue (DM) and the Banana peels (BM) was carried out to study their ability to be used as adsorbents for phenol removal from wastewater. This study reports the feasibility of employing dal mill residue waste (DM) as an absorbent for removing phenol from wastewater. The performance of DM wascompared with the commercially available activated carbon(CAC). Batch mode experiments were conducted with activated DM to study the effects of initial concentaration of phenol, pH and the temperature of aqueous solution on absorption. Equilibrium absorption isotherms and kinetics were investigated. The experimental data were analysed by the Langmuir, Freundlich and Temkin models and the isotherm data fitted well to the Freundlich isotherm with monolayer adsorption capacity of 6.189 mg/g. The kinetic data obtained at different concentrations were analysed using pseudo-first order and pseudo-first-order kinetic model. The FTIR analysis revealed that carboxyl and hydroxyl functional groups were mainly responsible for the sorption of phenol. Finally, the DM was found to be a promising adsorbent for phenol adsorption as activated carbon.
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RRII Library | Volume 55, Issue 3 | Journals |
In this paper, preliminary investigation of various agricultural wastes-Rice mill residue(RM), Wheat mill reside (WM), Dall mill residue (DM) and the Banana peels (BM) was carried out to study their ability to be used as adsorbents for phenol removal from wastewater. This study reports the feasibility of employing dal mill residue waste (DM) as an absorbent for removing phenol from wastewater. The performance of DM wascompared with the commercially available activated carbon(CAC). Batch mode experiments were conducted with activated DM to study the effects of initial concentaration of phenol, pH and the temperature of aqueous solution on absorption. Equilibrium absorption isotherms and kinetics were investigated. The experimental data were analysed by the Langmuir, Freundlich and Temkin models and the isotherm data fitted well to the Freundlich isotherm with monolayer adsorption capacity of 6.189 mg/g. The kinetic data obtained at different concentrations were analysed using pseudo-first order and pseudo-first-order kinetic model. The FTIR analysis revealed that carboxyl and hydroxyl functional groups were mainly responsible for the sorption of phenol. Finally, the DM was found to be a promising adsorbent for phenol adsorption as activated carbon.
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