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Title: Simultaneous removal of phenol and cyanide from aqueous solution by adsorption onto surface modified activated carbon prepared from coconut shell
Authors: Singh N.
Balomajumder, Chandrajit
Published in: Journal of Water Process Engineering
Abstract: The present study is devoted to the elimination of phenol and cyanide from binary component aqueous solution by adsorption onto copper impregnated coconut shell activated carbon (Cu-CSAC). Effects of initial concentration, adsorbent dose, pH, temperature and contact time on phenol and cyanide elimination have been examined. At an optimum temperature 30. °C, pH 8, and the adsorbent dose of 40 g/L, 71.43% phenol and 86.8% cyanide were removed from binary aqueous solution comprising 300. mg/L of phenol and 30 mg/L of cyanide. The isotherm modeling study is carried out by accompanying batch experiments at range of initial concentration 100-1000 mg/L of phenol and 10-100 mg/L of cyanide. Three mono component isotherm model and six binary component isotherm models were considered. The model parameters were predicted by using non-linear regression analysis technique. It was observed that the experimental data indicate a better fit with an Extended Freundlich isotherm model for adsorption of phenol and cyanide in the binary component system. The adsorption efficiency of Cu-CSAC was observed to be 239.85. mg/g of phenol and 5.30 mg/g of cyanide. The mechanism of adsorption process was found chemisorption followed by Pseudo second order kinetics. Thermodynamic studies indicated the adsorption process onto Cu-CSAC as endothermic nature and reversible. © 2016 Elsevier Ltd.
Citation: Journal of Water Process Engineering(2016), 9(): 233-245
Issue Date: 2016
Publisher: Elsevier Ltd
Keywords: Binary solution
Multi component adsorption isotherm
ISSN: 22147144
Author Scopus IDs: 57211016562
Author Affiliations: Singh, N., Indian Institute of Technology, Department of Chemical Engineering, Roorkee, India
Balomajumder, C., Indian Institute of Technology, Department of Chemical Engineering, Roorkee, India
Funding Details: The authors are grateful to Department of Chemical Engineering and Institute Instrumentation Center of Indian Institute of Technology Roorkee, India for providing facilities and technical support. The authors would also like to thank to Ministry of Human Resource Development (MHRD, New Delhi), Government of India for funding this research work. Appendix A
Corresponding Author: Singh, N.; Indian Institute of Technology, Department of Chemical EngineeringIndia; email:
Appears in Collections:Journal Publications [CH]

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