Valorization of Pistia stratiotes Biomass as Biosorbent for Lead(II) Ions Removal from Aqueous Media

Author:      

Publisher: Taylor & Francis Ltd

E-ISSN: 1520-5754|50|10|1577-1586

ISSN: 0149-6395

Source: Separation Science and Technology, Vol.50, Iss.10, 2015-07, pp. : 1577-1586

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

Previous Menu Next

Abstract

In this study the valorization of Pistia stratiotes biomass as biosorbent for lead(II) removal from aqueous media was investigated in batch system. About 0.125 g of biomass was sufficient to remove 96% of lead(II) from 25 mL of solution in 60 min, at room temperature, and the maximum of biosorption has been reached in a large pH interval. The equilibrium biosorption data are well represented by the Langmuir model, while the pseudo-second order model was applicable to the kinetic data. The lead(II) could be easily eluted with 0.1 mol/L HCl, and the biomass may be reused in three biosorption/desorption cycles.