Evaluation of the Combined Cr(VI) Removal Capacity of Sawdust and Sawdust-Immobilized Acinetobacter haemolyticus Supplied with Brown Sugar
| Autor: | Zainul Akmar Zakaria, Firdausi Razali, Wan Azlina Ahmad, Jefri Samin |
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| Rok vydání: | 2009 |
| Předmět: |
Environmental Engineering
Waste management biology Ecological Modeling Biomass chemistry.chemical_element Acinetobacter biology.organism_classification Pollution Acinetobacter haemolyticus Chromium Wastewater chemistry visual_art visual_art.visual_art_medium Environmental Chemistry Sewage treatment Sawdust Sugar Water Science and Technology Nuclear chemistry |
| Zdroj: | Water, Air, and Soil Pollution. 204:195-203 |
| ISSN: | 1573-2932 0049-6979 |
| DOI: | 10.1007/s11270-009-0037-5 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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