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Evaluation of the combined Cr(VI) removal capacity of sawdust and sawdust-immobilized acinetobacter haemolyticus supplied with brown sugar

Ahmad, Wan Azlina and Zakaria, Zainul Akmar and Razali, Firdausi and Samin, Jefri (2009) Evaluation of the combined Cr(VI) removal capacity of sawdust and sawdust-immobilized acinetobacter haemolyticus supplied with brown sugar. Water, Air, and Soil Pollution, 204 (1-4). pp. 195-203. ISSN 0049-6979

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Official URL: http://dx.doi.org/10.1007/s11270-009-0037-5

Abstract

The purpose of this study is to evaluate the combined Cr(VI) removal capacities of nonliving (untreated rubber wood sawdust, URWS) and living biomass (URWS-immobilized Acinetobacter haemolyticus) in a continuous laboratory scale downward-flow two column system. Synthetic solutions of Cr(VI) between 237 and 320 mg L(-1) were mixed with 1 g L(-1) brown sugar in a nonsterile condition. Final Cr(VI) of between 0 and 1.6 mg L(-1) indicate a Cr(VI) removal capacity of 99.8-100%. The bacterial Cr(VI) reduction capacity increased with column length. This study shows the feasibility of using the two column system consisting of living (bacteria) and nonliving biomass (URWS) as a useful alternative treatment for Cr(VI) contamination in the aqueous system.

Item Type:Article
Uncontrolled Keywords:acinetobacter, chromium, removal, sugar, immobilized, sawdust
Subjects:T Technology > TP Chemical technology
Divisions:Science
ID Code:14180
Deposited By: Ms Zalinda Shuratman
Deposited On:26 Aug 2011 05:06
Last Modified:26 Aug 2011 05:06

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