文章基本信息

标题：Decolourization of Novacron Blue and Novacron Super Black Azo Dyes by Bacillus spp Isolated from Textile Effluents in Bangladesh
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作者：K. R. Mahbub ; B. Morium ; M. M. Ahmed 等
期刊名称：Journal of Scientific Research
印刷版ISSN：2070-0237
电子版ISSN：2070-0245
出版年度：2015
卷号：7
期号：1-2
页码：45-53
DOI：10.3329/jsr.v7i1-2.18682
语种：English
出版社：Rajshahi University
摘要：Effluents containing azo dyes from textile and dyeing industries cause serious pollution to aquatic environments. In this study, azo dye decolourization potential of five bacterial isolates was examined in different physicochemical conditions such as pH, temperature and glucose concentrations. Based on biochemical characteristics the isolates were identified as Bacillus badius (isolate A3 and A4) and Bacillus sphaericus (isolate A5, B8, C5). These bacteria showed decolourization of two experimental azo dyes, Novacron Blue and Novacron Super Black at different temperatures, pH and glucose concentrations up to 92% after 72 h of incubation. Decolourization increased with time and temperature. Neutral to alkaline pH with increased concentration of glucose facilitated dye removal. The maximum decolourization (92%) of experimental dyes was observed at 35°C, pH 7-8 with 2% glucose. Bacillus badius demonstrated better decolourization.
其他摘要：Effluents containing azo dyes from textile and dyeing industries cause serious pollution to aquatic environments. In this study, azo dye decolourization potential of five bacterial isolates was examined in different physicochemical conditions such as pH, temperature and glucose concentrations. Based on biochemical characteristics the isolates were identified as Bacillus badius (isolate A3 and A4) and Bacillus sphaericus (isolate A5, B8, C5). These bacteria showed decolourization of two experimental azo dyes, Novacron Blue and Novacron Super Black at different temperatures, pH and glucose concentrations up to 92% after 72 h of incubation. Decolourization increased with time and temperature. Neutral to alkaline pH with increased concentration of glucose facilitated dye removal. The maximum decolourization (92%) of experimental dyes was observed at 35°C, pH 7-8 with 2% glucose. Bacillus badius demonstrated better decolourization.
关键词：Textile effluent;Azo dye;Decolorization;Bacillus.