期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 194, 期 -, 页码 355-361出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2011.07.109
关键词
Biofilm; Chlor-alkali industry; Mathematical model; Packed bed filter; Packed bed reactor
资金
- University Grants Commission
Removal of mercuric ions by a mercury resistant bacteria, called Bacillus cereus (JUBT1), isolated from the sludge of a local chlor-alkali industry, has been investigated. Growth kinetics of the bacteria have been determined. A multiplicative, non-competitive relationship between sucrose and mercury ions has been observed with respect to bacterial growth. A combination of biofilm reactor, using attached growth of Bacillus cereus (JUBT1) on rice husk packing, and an activated carbon filter has been able to ensure the removal of mercury up to near-zero level. Energy dispersive spectrometry analysis of biofilm and the activated carbon has proved the transformation of Hg2+ to Hg-0 and its confinement in the system. (C) 2011 Elsevier B.V. All rights reserved.
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