期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 161, 期 2-3, 页码 769-774出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2008.04.023
关键词
Reactive black 5; Biodegradation; Klebsiella; Maize waste; Immobilization
资金
- CONACyT
- [130497]
- [SEP-2004-C01-46377]
The degradation of two immobilized dyes by Klebsiella sp. UAP-b5 was studied. In batch experiments, the azo dyestuffs Basic Blue 41 and Reactive Black 5 were immobilized onto corn cobs by adsorption, and the adsorption process was characterized by a pseudo-second-order kinetic equation. Klebsiella sp. UAP-b5 was previously isolated from the corn waste and shown to decolorize these dyes in liquid Systems. Here, we demonstrate anaerobic decolorization and reductive biodegradation of these dyes by means of spectrophotometry, HPLC, and IR spectroscopy of the solid waste and desorption solutions. We also demonstrate adsorption of compounds that resemble known degradation products. (C) 2008 Elsevier B.V. All rights reserved.
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