E3S Web Conf.
Volume 150, 2020The Seventh International Congress “Water, Waste and Environment” (EDE7-2019)
|Number of page(s)||8|
|Section||Waste Treatment and Recovery Channels|
|Published online||12 February 2020|
Effect of the self-purification of Oum Er Rbia river on the elimination of fish releases
1 Environnemental engineering Team. Department of Biology, Faculty of Sciences and Techniques .University Sultan MoulaySlimane. M’ Ghila, B.O 523. 23 000 Beni-Mellal, Morocco
2 Fish Farming Ain Aghbal, Azrou–Morocco
* Corresponding author: firstname.lastname@example.org Phone number: +212666109480
Fish farming is a rapidly growing production worldwide, where it covers nearly 50% of fish inputs for human consumption. Releases to the natural environment are also an important issue, especially as they are visible and quantifiable, being emitted directly into the water.
The physicochemical analyzes of the various Oued Er-Rbia points (ES, P1, P2, P3 and E4) show that the physico-chemical quality of the water downstream of the OumEr-Rbia magnification station shows no signs of deterioration of the receiving releases.
Fish farming effluents are known to deteriorate the quality of freshwater and the excessive presence of nitrogen and phosphorus in the water leads to eutrophication of the environment. This is not the case at the Oum Er-Rbia station, but it is crucial to develop food formulations that cause the least amount of nitrogen and phosphorus released into the environment.
© The Authors, published by EDP Sciences 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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