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Concurrent removal of cadmium and benzene from aqueous solution by powdered activated carbon impregnated alginate beads

Title
Concurrent removal of cadmium and benzene from aqueous solution by powdered activated carbon impregnated alginate beads
Author
전병훈
Keywords
Alginate bead; Cadmium; Concurrent removal; Powdered activated carbon; Volatile organic compound
Issue Date
2017-01
Publisher
ELSEVIER SCIENCE BV
Citation
CATENA, v. 148, page. 101-107
Abstract
Applicability of a powdered activated carbon impregnated alginate beads (ABPAC) was examined toward simultaneous removal of heavy metal (cadmium) and volatile organic compound (benzene) from water. Sorption of cadmium and benzene by ABPAC was investigated in both single and binary systems as a function of contact time (1 h-11 d), initial pH (4-7), and initial concentration of cadmium and benzene (10-600 mg L-1). The sorption capacity of APBAC for cadmium and benzene was 14932 and 89.60 mg g(-1), respectively. Sorption kinetics was well described by the pseudo-second-order model with correlation coefficients, R-2>0.994. Cadmium sorption capacity increased from 41.76 to 56.09 mg(-1) with increasing pH from 4 to 7, while benzene sorption was not much influenced. The Langmuir model best correlated with adsorption of cadmium and benzene on ABPAC. Our results indicated no competition effects in a binary-contaminant system, which proves the practical utility of ABPAC for the concurrent sorptive removal of aqueous phase heavy metals and volatile organic compounds. (C) 2016 Elsevier B.V. All rights reserved.
URI
https://www.sciencedirect.com/science/article/pii/S034181621630234X?via%3Dihubhttp://repository.hanyang.ac.kr/handle/20.500.11754/106108
ISSN
0341-8162; 1872-6887
DOI
10.1016/j.catena.2016.06.029
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > EARTH RESOURCES AND ENVIRONMENTAL ENGINEERING(자원환경공학과) > Articles
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