Sorption Kinetic of Arsenate as Water Contaminant on Zero Valent Iron

HTML  Download Download as PDF (Size: 1062KB)  PP. 563-567  
DOI: 10.4236/jwarp.2013.56057    4,685 Downloads   7,188 Views  Citations

ABSTRACT

This study investigates the sorption of arsenate from water using zero-valent iron ZVI as sorbent. Batch experiments were carried out to study the sorption kinetics of arsenate under different concentrations of arsenate varies from 0.5 to 200 mg/l. A kinetic model was considered to describe the arsenates sorption on ZVI material. The kinetics of the arsenate sorption processes were described by the Langmuir kinetic model. The sorption capacity increases with high initial concentration which obtained the maximum sorption 2.1 mg/g at 200 mg/l of arsenate initial concentration. The results show that the rapid initial sorption rates of arsenate were occurred at the beginning of experiments running time, followed by a slower removal that gradually approaches an equilibrium condition. The data from laboratory batch experiments were used to verify the simulation results of the kinetic model resulting in good agreement between measured and modeled results. The results indicate that ZVI could be employed as sorbent materials to enhance the sorption processes and increase the removal rate of arsenate from water.

Share and Cite:

O. Eljamal, K. Sasaki and T. Hirajima, "Sorption Kinetic of Arsenate as Water Contaminant on Zero Valent Iron," Journal of Water Resource and Protection, Vol. 5 No. 6, 2013, pp. 563-567. doi: 10.4236/jwarp.2013.56057.

Copyright © 2024 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.