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Vol. 26 No. 9 (2014): Vol 26 Issue 9

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Adsorptive Removal of Cr(VI) by Acinetobacter junii VITSUKMW3 Immobilized on Coconut Fiber in Batch and Continuous Flow Reactor

https://doi.org/10.14233/ajchem.2014.15785
Mrudula Pulimi
Centre for Nanobiotechnology, VIT University, Vellore-632 014, India
Jastin Samuel
Centre for Nanobiotechnology, VIT University, Vellore-632 014, India
rasekaran Natarajan
Centre for Nanobiotechnology, VIT University, Vellore-632 014, India
Amitava Mukherjee
Centre for Nanobiotechnology, VIT University, Vellore-632 014, India

Corresponding Author(s) : Amitava Mukherjee

amitav@vit.ac.in; amit.mookerjea@gmail.com

Asian Journal of Chemistry, Vol. 26 No. 9 (2014): Vol 26 Issue 9

Abstract

The removal of Cr(VI) by the biomass of Acinetobacter junii immobilized on coconut fiber in batch and continuous systems were investigated. For batch system under optimized conditions (pH 2; contact time, 480 min; 30 °C; initial Cr(VI) concentration of 50 mg/L), an adsorption capacity of 17.4 mg/g was recorded. In continuous packed bed column reactors, a capacity of 39.4 mg/g was noted with a bed height of 18 cm, a flow rate of 5 mL/min, an initial Cr(VI) concentration of 50 mg/L was employed. The batch sorption data followed the Langmuir isotherm and pseudo first order kinetics. Adsorption studies using Cr(VI) spiked freshwater, ground water and domestic wastewater in a continuous packed bed column reactors demonstrated Cr(VI) removals of 29.3, 43.6, 37.3, 25 %, respectively.

Keywords

Biomass Coconut fiber Sorption capacity Cr(VI) removal
Pulimi, M., Samuel, J., Natarajan, rasekaran, & Mukherjee, A. (2014). Adsorptive Removal of Cr(VI) by Acinetobacter junii VITSUKMW3 Immobilized on Coconut Fiber in Batch and Continuous Flow Reactor. Asian Journal of Chemistry, 26(9), 2649–2654. https://doi.org/10.14233/ajchem.2014.15785
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