Sorption kinetics and intrapaticulate diffusivity of As(III) bioremediation from aqueous solution, using modified and unmodified coconut fiber

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dc.contributor.authorIgwe, J.C.
dc.contributor.authorAbia, A.A.
dc.date.accessioned2014-05-19T09:11:21Z
dc.date.available2014-05-19T09:11:21Z
dc.date.issued2006
dc.description.abstractThe pollution and toxicity problems posed by arsenic in the environment have long been established. Hence, the removal and recovery remedies have been sought, bearing in mind the efficiency, cost effectiveness and environmental friendliness of the methods employed. The sorption kinetics and intraparticulate diffusivity of As (III) bioremediation from aqueous solution using modified and unmodified coconut fiber was investigated. The amount adsorbed increased as time increased, reaching equilibrium at about 60 minutes. The kinetic studies showed that the sorption rates could be described by both pseudo-first order and pseudo-second order process with the later showing a better fit with a value of rate constant of 1.16 x 10-4 min-1 for the three adsorbent types. The mechanism of sorption was found to be particle diffusion controlled. The diffusion and boundary layer effects were also investigation. Therefore, the results show that coconut fiber, both modified and unmodified is an efficient sorbent for the removal of As (III) from industrial effluents with particle diffusion as the predominant mechanism.en_US
dc.identifier.citationEcl. Quím., São Paulo, 31(3): 23-29, 2006en_US
dc.identifier.urihttp://hdl.handle.net/123456789/1465
dc.language.isoenen_US
dc.publisherEcletica Quimicaen_US
dc.subjectsorption kinetics
dc.subjectintrapaticulate diffusivity
dc.subjectbioremediation
dc.subjectcoconut fiber
dc.subjectcoconut
dc.subject
dc.subject
dc.titleSorption kinetics and intrapaticulate diffusivity of As(III) bioremediation from aqueous solution, using modified and unmodified coconut fiberen_US
dc.typeArticleen_US

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