Journal
WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
Volume 35, Issue 12, Pages -Publisher
SPRINGER
DOI: 10.1007/s11274-019-2756-0
Keywords
Bacterial consortium; Domestic effluent; Genotoxicity; Organic compounds' degradation; Phytotoxicity
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Funding
- Amity Institute of Biotechnology, Amity University Uttar Pradesh
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Supplementation of consortium comprising of aboriginal bacterial species with high degradation capacity can significantly enhance the biodegradation process of the domestic wastewater. The present study examined the bioremediation of domestic wastewater using a novel bacterial consortium comprising of five autochthonous bacterial strains with high potential for reduction in BOD, COD and protein content to 89%, 55% and 86%, respectively after 24 h of incubation. HPLC and GC-MS analyses revealed that the chosen consortium had successfully degraded wide-ranging complex organic compounds, which is crucial in the decontamination of wastewater. Phytotoxicity assay of the effluent exhibited that the seeds of Vigna radiata showed better growth and germination when subjected to wastewater treated by novel bacterial consortium as compared to the seeds exposed to untreated wastewater. Further, raw and treated wastewater were assessed for their genotoxicity with comet assay which displayed the intensity of DNA damage in the Allium cepa root tip cells before and after exposure to treated effluent. It is evident from the demonstrated results that the formulated bacterial consortium can be used successfully in a small-scale wastewater treatment plant.
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