期刊
WATER SCIENCE AND TECHNOLOGY
卷 80, 期 10, 页码 1910-1918出版社
IWA PUBLISHING
DOI: 10.2166/wst.2020.010
关键词
biological; consortium; decolourization; textile; wastewater
资金
- Senate Research Committee [SRC/CAP/15/03]
- University of Moratuwa, Sri Lanka
Most currently employed textile effluent decolourization methods use physical and chemical processes where dyes do not get degraded instead concentrated or transferred into a solid phase. Therefore, further treatment processes are required to destroy dyes from the environment. In contrast, biological decolourization may result in degradation of the dye structure due to microbial activities and hence biological processes can be considered environmentally friendly. In the present study, bacterial strains with dye decolourization potential were isolated from the natural environment and their ability to decolourize four different reactive textile dyes was studied individually and in a bacterial consortium. The developed bacterial consortium composed with Proteus mirabilis, Morganella morganii and Enterobacter cloacae indicated more than 90% color removals for all four dyes and optimum decolourization of the dye mixture was observed at 40 degrees C and pH 7. The developed bacterial consortium decolourized 60% of dyes in textile industry effluent at 35 degrees C and pH 7 showing their ability to endure in highly complex and toxic environments and application in textile industry wastewaters.
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