Valorisation of the supernatant of brewery effluent in plankton production for fish farming: an alternative for environment protection in southern countries

Liady, Mouhamadou Nourou Dine and Goussanou, Baruc Kpehouenou and Adande, Richard and Noumavo, Agossou D. Pacome and Kouadio, Louis Amani ORCID: https://orcid.org/0000-0001-9669-7807 and Zouhir, Fouad and Aina, Martin Pepin and Fiogbe, Emile Didier (2020) Valorisation of the supernatant of brewery effluent in plankton production for fish farming: an alternative for environment protection in southern countries. Biotechnology, Agronomy, Society and Environment, 24 (4). pp. 235-239. ISSN 1370-6233

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Abstract

Description of the subject. Identifying optimal conditions for the use of brewery effluents in phytoplankton production. Objectives. To determine the nutrient potential of the supernatant of this effluent, conditions for its use in phytoplankton production and the depollution that results from its use. Methods. Firstly, the supernatant of the effluent was analyzed. Five triplicate treatments were then seeded with Scenedesmus quadricauda, and followed for 27 days through measurements of biomass and physicochemical parameters. Finally, abatement rates of the initial polluting loads were determined.
Results. Although the supernatant does not comply with the Benin standard, it does have a high nutrient potential. Not neutralizing the acidic initial pH led to a delay in algal growth. The treatment that contained 10% supernatant presented the highest algal production and significant reductions in polluting loads. Conclusions. In contexts where there is no functional wastewater treatment plan, it would be interesting to set up a win-win partnership between breweries and fish farmers. Optimal conditions would include optimal dose and prior pH neutralization.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Faculty/School / Institute/Centre: Current - Institute for Life Sciences and the Environment - Centre for Applied Climate Sciences (1 Aug 2018 -)
Faculty/School / Institute/Centre: Current - Institute for Life Sciences and the Environment - Centre for Applied Climate Sciences (1 Aug 2018 -)
Date Deposited: 25 Jan 2021 01:03
Last Modified: 29 Jan 2021 04:44
Uncontrolled Keywords: Water reuse, aquaculture, pollution, phytoplankton
Fields of Research (2008): 07 Agricultural and Veterinary Sciences > 0704 Fisheries Sciences > 070401 Aquaculture
07 Agricultural and Veterinary Sciences > 0704 Fisheries Sciences > 070403 Fisheries Management
Fields of Research (2020): 30 AGRICULTURAL, VETERINARY AND FOOD SCIENCES > 3005 Fisheries sciences > 300501 Aquaculture
30 AGRICULTURAL, VETERINARY AND FOOD SCIENCES > 3005 Fisheries sciences > 300505 Fisheries management
Identification Number or DOI: doi:10.25518/1780-4507.18768
URI: http://eprints.usq.edu.au/id/eprint/40576

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