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Title: Simultaneous removal of Cr(VI) and phenol from binary solution using Bacillus sp. immobilized onto tea waste biomass
Authors: Gupta A.
Balomajumder, Chandrajit
Published in: Journal of Water Process Engineering
Abstract: In this investigation, simultaneous Cr(VI) reduction and phenol degradation from contaminated water using Bacillus sp. immobilized onto the surface of tea waste biomass have been studied in a batch reactor. It was observed that Bacillus sp. utilized phenol as a carbon source for Cr(VI) reduction. Optimal conditions were achieved at a biomass dosage of 15. g/L with an initial concentration of 100. mg/L of Cr(VI) and 50. mg/L of phenol. The maximum uptake capacity of Cr(VI) and phenol onto tea waste biomass surface was 741.389. mg/g and 7.761. mg/g, respectively. The equilibrium condition was reached after 27. h for phenol and 48. h for Cr(VI). Multicomponent isotherm models were used to determine the adsorption mechanism for both Cr(VI) reduction and phenol degradation. Non-modified competitive Redlich-Peterson was found to be the best fit for Cr(VI) sorption while extended Langmuir was followed in the case of phenol degradation. Moreover, the experimental results revealed that both Cr(VI) and phenol were well described by the pseudo second-order model. © 2015 Elsevier Ltd.
Citation: Journal of Water Process Engineering(2015), 6(): 1-10
Issue Date: 2015
Publisher: Elsevier Ltd
Keywords: Bacillus sp.
Multicomponent adsorption isotherms
Tea waste biomass
ISSN: 22147144
Author Scopus IDs: 57207924606
Author Affiliations: Gupta, A., Department of Chemical engineering, Indian Institute of Technology Roorkee, India
Balomajumder, C., Department of Chemical engineering, Indian Institute of Technology Roorkee, India
Funding Details: The author gratefully acknowledges financial support provided by the MHRD assistantship by Government of India and Chemical Engineering Department, IIT, Roorkee for the facility provided for conducting research work.
Corresponding Author: Gupta, A.; Department of Chemical engineering, Indian Institute of Technology RoorkeeIndia
Appears in Collections:Journal Publications [CH]

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