Removal of Heavy Metals from Wastewater by Adsorption on Coir Pith Activated Carbon

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dc.contributor.authorSanthy, K.
dc.contributor.authorSelvapathy, P.
dc.date.accessioned2014-05-17T04:53:09Z
dc.date.available2014-05-17T04:53:09Z
dc.date.issued2007-02-08
dc.description.abstractThe activated carbon prepared from coconut coir pith by potassiumhydroxide activation was found to exhibit remarkable adsorption capacityfor cadmium, copper, and zinc. Batch equilibrium tests showedthat the extent of metal removal was found to be dependent on initialconcentration, contact time, pH, and carbon dose. It was found that atpH values below 3, the adsorption of metal ions was very less and waseffective above pH 6. The metal ion sorption was found to follow theFreundlich model. The kinetics of adsorption of metal ions followedIst order. The agglomerated coir pith carbon was evaluated for theeffect of flow rate and bed depth in column experiments. Linearrelationships between bed depth and service time were obtained for allthe metal ions by performing bed-depth service time (BDST) analysis.The adsorbed metal ions could be quantitatively recovered by using3331 1.0M HCl, and the capacity of carbon remained unaffected when putto repeated use for the removal of metal ions from aqueoussolutions. The efficiency of carbon when applied to industrial effluentswas found to be superior in removal of metal ions compared with thecommercial ones.en_US
dc.identifier.citationSeparation Science and Technology,39(14):3331–3351,2004en_US
dc.identifier.urihttp://hdl.handle.net/123456789/1375
dc.language.isoenen_US
dc.subjectCoir pithen_US
dc.subjectActivated carbonen_US
dc.subjectHeavy metalsen_US
dc.subjectAdsorptionen_US
dc.subjectBatch studiesen_US
dc.subjectFreundlich isothermen_US
dc.subjectKineticsen_US
dc.titleRemoval of Heavy Metals from Wastewater by Adsorption on Coir Pith Activated Carbonen_US
dc.typeArticleen_US

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