Characterization and application of plant-based magnetic biomaterial for batch and fixed-bed mode sequestration of lead from synthetic and real effluents


AKAR T., Balk Y. Y. , Tuna O., AKAR S.

ECOLOGICAL ENGINEERING, vol.61, pp.251-257, 2013 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 61
  • Publication Date: 2013
  • Doi Number: 10.1016/j.ecoleng.2013.09.062
  • Journal Name: ECOLOGICAL ENGINEERING
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.251-257
  • Keywords: Magnetic sorbent, Sorption, Lead, Characterization, Wastewater, AQUEOUS-SOLUTION, THUJA-ORIENTALIS, REMOVAL, ADSORPTION, BIOSORPTION, BIOMASS, EQUILIBRIUM, SORPTION, CARBON, DYE
  • Eskisehir Osmangazi University Affiliated: Yes

Abstract

In this study, biomass obtained from Thuja orientalis (T. orientalis) cones was converted to magnetic derivative (Mag-TOCP) and effectively used as a sorbent material for the removal of Pb2+ ions from contaminated solutions. IR, SEM, EDX and zeta potential analysis were employed to analyze the biomaterial modification and sorption mechanism. Batch mode operating conditions were investigated as functions of pH, contact time, Mag-TOCP dose and temperature. Modeling studies showed that equilibrium data were well predicted by the Langmuir isotherm with a monolayer sorption capacity of 1.92 x 10(-4) mol g(-1) and sorption kinetics was followed by the pseudo-second-order model. It was also observed that Pb2+ biosorption potential of Mag-TOCP did not significantly changed in competitive biosorption conditions. The results imply that the suggested biomaterial may find promising applications for the treatment of lead contaminated solutions. (C) 2013 Elsevier B.V. All rights reserved.