Decolorization of synthetic melanoidins-containing wastewater by a bacterial consortium.

Journal of Industrial Microbiology & Biotechnology
Suhuttaya JiranuntiponMarie-Line Delia

Abstract

The presence of melanoidins in molasses wastewater leads to water pollution both due to its dark brown color and its COD contents. In this study, a bacterial consortium isolated from waterfall sediment was tested for its decolorization. The identification of culturable bacteria by 16S rDNA based approach showed that the consortium composed of Klebsiella oxytoca, Serratia mercescens, Citrobacter sp. and unknown bacterium. In the context of academic study, prevention on the difficulties of providing effluent as well as its variations in compositions, several synthetic media prepared with respect to color and COD contents based on analysis of molasses wastewater, i.e., Viandox sauce (13.5% v/v), caramel (30% w/v), beet molasses wastewater (41.5% v/v) and sugarcane molasses wastewater (20% v/v) were used for decolorization using consortium with color removal 9.5, 1.13, 8.02 and 17.5%, respectively, within 2 days. However, Viandox sauce was retained for further study. The effect of initial pH and Viandox concentration on decolorization and growth of bacterial consortium were further determined. The highest decolorization of 18.3% was achieved at pH 4 after 2 day of incubation. Experiments on fresh or used medium and used or fresh ba...Continue Reading

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Citations

Dec 12, 2012·Environmental Science and Pollution Research International·Soni TiwariRajeeva Gaur
Jan 17, 2015·Ecotoxicology and Environmental Safety·S R Vijayalakshmidevi, Karuppan Muthukumar
Jan 19, 2011·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Elda España-GamboaLiliana Alzate-Gaviria
Jan 30, 2019·Water Environment Research : a Research Publication of the Water Environment Federation·Marta WilkEwa Walaszczyk

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