Degradation and detoxification of leather tannery effluent by a newly developed bacterial consortium GS-TE1310 for environmental safety

Saxena, Gaurav, Purchase, Diane ORCID: https://orcid.org/0000-0001-8071-4385, Mulla, Sikandar I. and Bharagava, Ram Naresh ORCID: https://orcid.org/0000-0002-1092-4181 (2020) Degradation and detoxification of leather tannery effluent by a newly developed bacterial consortium GS-TE1310 for environmental safety. Journal of Water Process Engineering, 38 , 101592. pp. 1-13. ISSN 2214-7144 [Article] (doi:10.1016/j.jwpe.2020.101592)

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Abstract

The untreated/partially treated effluent discharged from leather tanning industries is heavily polluting our water and soil resources. Hence, the adequate treatment/detoxification of tannery effluent (TE) is required before its safe disposal into the environment. In the present study, an effective degradation of real TE was attained by a newly developed bacterial consortium GS-TE1310 within 120 h with 76.12, 85.32, 71.89, 48.59, 78.81, 69.53, 71.22, and 88.70 % reduction in pollution parameters such as COD, BOD, TDS, phosphate, sulphate, nitrate, Cr, and phenol, respectively. The HP-LC, FT-IR, and GC–MS study showed that most of the organic contaminants identified in the untreated TE were completely mineralized/degraded into new degradation products in the treated TE by the newly developed bacterial consortium GS-TE1310 at 7 pH, 0.5 % glucose and ammonium chloride, 120 rpm, and 20 mL inoculum volume. Further, the bacterially treated TE was used for the phytotoxicity evaluation using Phaseolus aureus L as a terrestrial model organism. Results revealed that the toxicity of bacterially treated TE was significantly reduced, allowing the 70 % germination of seeds, and thus, confirmed the detoxification of leather TE. Overall, the newly developed bacterial consortium GS-TE1310 demonstrated a remarkable potential to efficiently treat/detoxify leather TE for environmental safety.

Item Type: Article
Research Areas: A. > School of Science and Technology > Natural Sciences
Item ID: 30864
Notes on copyright: © 2020. This author's accepted manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
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Depositing User: Jisc Publications Router
Date Deposited: 28 Aug 2020 08:12
Last Modified: 03 Sep 2020 12:21
URI: https://eprints.mdx.ac.uk/id/eprint/30864

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