Removal of phenols from water and petroleum industry refinery effluents by activated carbon obtained from coconut coir pith

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dc.contributor.authorAnirudhan, T.S.
dc.contributor.authorSreekumari, S.S.
dc.contributor.authorBringle, C.D.
dc.date.accessioned2014-05-17T05:00:05Z
dc.date.available2014-05-17T05:00:05Z
dc.date.issued2009
dc.description.abstractCoir pith obtained from the coir industry as waste biomass was used to prepare activated carbon by chemical activation using phosphoric acid (H3PO4). The influences of activation temperature and lasting time of activation on specific surface areas (SSA) of the activated carbons were observed. Physical characteristics of the activated carbon were investigated using X-ray diffraction (XRD), infrared spectroscopy (IR), surface area analyzer, scanning electron microscopy (SEM), thermal analysis and potentiometric titration. The feasibility of using activated carbon for the removal of phenol (P), p-chlorophenol (PCP) and pnitrophenol (PNP) from water and petroleum refinery industry effluents was investigated. The effects of contact time, adsorbent dose, ionic strength and initial concentration on the adsorption of phenols onto the activated carbon were investigated. The optimum pH for the maximum removal of phenols was 6.0. The equilibrium adsorption data of phenols were correlated to Langmuir and Freundlich isotherm models, the latter being the best fit of the experimental data. Dynamics of the sorption process and mass transfer were investigated using McKay and Urano-Tachikawa models. Adsorption kinetic data fits the Urano-Tachikawa kinetic model. The utility of the adsorbent was tested by using petroleum refinery industry effluent. The adsorbed phenols can be recovered by treatment with 0.1 M NaOH solution.en_US
dc.identifier.citationAdsorption (2009) 15: 439–451en_US
dc.identifier.urihttp://hdl.handle.net/123456789/1376
dc.language.isoenen_US
dc.subjectCoir pithen_US
dc.subjectActivated carbonen_US
dc.subjectAdsorption isothermen_US
dc.subjectPhenolsen_US
dc.subjectMass transfer studiesen_US
dc.subjectDesorptionen_US
dc.titleRemoval of phenols from water and petroleum industry refinery effluents by activated carbon obtained from coconut coir pithen_US
dc.typeArticleen_US

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