Journal of Chemical and Pharmaceutical Research (ISSN : 0975-7384)

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Original Articles: 2015 Vol: 7 Issue: 1

Biosorption of Pb(II) And Zn(II) from aqueous solutionusing langsat (Lansium domesticum Corr) fruit peel

Abstract

This study eximines the possibility of using Lansium domesticumCorr peel in removing Pb(II) and Zn(II) from aqueous solution. It had been found that the biosorption capacities were significantly affected by solution pH, contact time, initial metal inon concentration, biosorben dose, and temperature of biosorbent. The maximum uptake of Pb(II) and Zn(II) was 9.6804 mg/g and 8.754 mg/g respectively from 20-350 mg/L of metal solution at pH 5 by using 0.5 g lansium domesticum corr. The Langmuir and freundlich adsorption models were used to represent the experimental data and equilibriuem data. The metal removal rates were rapid , with 90% of the total adsorption taking place within 8 min for Pb(II) and 4 min for Zn(II) Langsatpeel showed the highest potential for removing of toxic metal from aqueous solution.