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Research Journal of Pharmacy and Technology
Year : 2017, Volume : 10, Issue : 8
First page : ( 2641) Last page : ( 2644)
Print ISSN : 0974-3618. Online ISSN : 0974-360X.
Article DOI : 10.5958/0974-360X.2017.00469.3

Kinetic and Equilibrium Studies on Biosorption of Zinc Using Tamarindus indica L.

Bangaraiah P.1,*, Babu B. Sarath

Department of Chemical Engineering, S.V.U. College of Engineering, Tirupati

1Department of Chemical Engineering, Vignan University, Vadlamudi

*Corresponding Author E-mail: p_bangaraiah@yahoo.co.in

Online published on 26 March, 2018.

Abstract

The removal of the metals occur actively only with living cells and/or passively at the surface of dead cells. This is known as biosorption. In this study, the bio-sorption of Zinc from aqueous solution was investigated by using Tamarindus indica L as an agricultural waste. The effects of agitation time, PH and biomass dose were determined and the fitness of bio-sorption data for Freundlich and Langmuir adsorption models was investigated. It was found that bio-sorption of zinc on to Tamarindus indica L was suitable to the Langmuir isotherm model. Two kinetic models, the pseudo-first order and pseudo-second order equations were selected to follow the adsorption process. The pseudo second order kinetics was the best for the adsorption of zinc with a correlation coefficient of 0.98. The maximum sorption capacity of the sorbent for the removal of zinc was found to be 66%.

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Keywords

Biosorption, Tamarindus indica, isotherms, kinetics, zinc.

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