[ Caractérisation physico-chimique et évaluation de la gestion des eaux usées des résidences universitaires du campus d’Abomey-Calavi ]
Volume 24, Issue 2, September 2018, Pages 736–741
Mickael Vitus Martin Kpessou Saizonou1, Loic Adangnitodé2, and Henri H. Soclo3
1 Laboratoire d’Etude et de Recherche en Chimie Appliquée- Ecole Polytechnique d’Abomey-Calavi, Université d’Abomey-Calavi, 01 BP 2009 Cotonou, Ben, Benin
2 Unité de Recherche en Ecotoxicologie et Etude de Qualité, Laboratoire d’Etude et de Recherche en Chimie Appliquée, Ecole Polytechnique d’Abomey-Calavi, Université d’Abomey-Calavi, Benin
3 Laboratoire d'Etude et de Recherche en Chimie Appliquée, Ecole Polytechnique d'Abomey- Calavi, Université d'Abomey-Calavi, 07 BP 507 Ste Rita Cotonou, Benin
Original language: French
Copyright © 2018 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
The aim of this work is to study the physical and chemical characterization of wastewater at the level of the student residences of the university’s campus of Abomey-Calavi in order to propose in the medium term an adequate system of treatment of these wastewaters. The study evaluate quantity of water used by students per day and the pollutant loads in them and the methods of storage and disposal of wastewaters of students residences. Showers, laundries and kitchens are the main systems that generate wastewater. The receptacles of these waters are the sumps which also receive wastewaters from the septic tanks of the toilets. These wastewaters are then rejected in the Nokoue lake. The approximate number of students wastewaters generator in residences is 3904. The amount of wastewaters produced daily and collectively by the residents of the university campus is approximately 292800L. From analyzes conducted on these waters, it appears that they have the characteristics of domestic wastewaters and the ratio COD / BOD5 shows that these wastewaters are little biodegradable. Moreover, they don’t comply with beninese standards for the discharge of domestic wastewaters. This huge amount of wastewaters is not without consequences on the health of campus users and the environment. The campus of university of Abomey-Calavi does not also have a wastewaters treatment system. Appropriate measures should be taken to improve the management of these wastewaters.
Author Keywords: wastewaters, students residences, emptying, Abomey-Calavi.
Volume 24, Issue 2, September 2018, Pages 736–741
Mickael Vitus Martin Kpessou Saizonou1, Loic Adangnitodé2, and Henri H. Soclo3
1 Laboratoire d’Etude et de Recherche en Chimie Appliquée- Ecole Polytechnique d’Abomey-Calavi, Université d’Abomey-Calavi, 01 BP 2009 Cotonou, Ben, Benin
2 Unité de Recherche en Ecotoxicologie et Etude de Qualité, Laboratoire d’Etude et de Recherche en Chimie Appliquée, Ecole Polytechnique d’Abomey-Calavi, Université d’Abomey-Calavi, Benin
3 Laboratoire d'Etude et de Recherche en Chimie Appliquée, Ecole Polytechnique d'Abomey- Calavi, Université d'Abomey-Calavi, 07 BP 507 Ste Rita Cotonou, Benin
Original language: French
Copyright © 2018 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
The aim of this work is to study the physical and chemical characterization of wastewater at the level of the student residences of the university’s campus of Abomey-Calavi in order to propose in the medium term an adequate system of treatment of these wastewaters. The study evaluate quantity of water used by students per day and the pollutant loads in them and the methods of storage and disposal of wastewaters of students residences. Showers, laundries and kitchens are the main systems that generate wastewater. The receptacles of these waters are the sumps which also receive wastewaters from the septic tanks of the toilets. These wastewaters are then rejected in the Nokoue lake. The approximate number of students wastewaters generator in residences is 3904. The amount of wastewaters produced daily and collectively by the residents of the university campus is approximately 292800L. From analyzes conducted on these waters, it appears that they have the characteristics of domestic wastewaters and the ratio COD / BOD5 shows that these wastewaters are little biodegradable. Moreover, they don’t comply with beninese standards for the discharge of domestic wastewaters. This huge amount of wastewaters is not without consequences on the health of campus users and the environment. The campus of university of Abomey-Calavi does not also have a wastewaters treatment system. Appropriate measures should be taken to improve the management of these wastewaters.
Author Keywords: wastewaters, students residences, emptying, Abomey-Calavi.
Abstract: (french)
Cette étude s’intéresse à la caractérisation physico-chimique et aux modes de stockage et d’évacuation des eaux usées produites au niveau des résidences estudiantines de l’université d’Abomey-Calavi. Son objectif est d’évaluer les charges polluantes contenues dans les eaux usées générées au niveau desdites résidences en vue de proposer à moyen terme un système de traitement adéquat de celles-ci. Les douches, les buanderies et les cuisines sont les principaux systèmes où sont générées les eaux usées qui sont envoyées des puisards qui reçoivent également les filtrats issus des fosses septiques des toilettes. Ces eaux usées sont ensuite rejetées dans le lac Nokoué sans aucun traitement préalable. Le nombre approximatif d’étudiants générateurs d’eaux usées dans les résidences est 3904. Le volume d’eaux usées quotidiennement et collectivement produit par les étudiants résidents du campus de l’université d’Abomey-Calavi est d’à-peu-près 292800L. Des analyses réalisées sur ces eaux, il ressort qu’elles ont les caractéristiques d’eaux usées domestiques et le rapport DCO/DBO5 montre qu’elles sont peu biodégradables. Par ailleurs elles ne respectent pas les normes béninoises de rejet des eaux usées domestiques. Cette importante quantité d’eaux usées n’est donc pas sans conséquence néfaste sur la santé des usagers du campus et sur l’environnement. Des mesures appropriées devraient être prises pour améliorer leur gestion.
Author Keywords: eaux usées, résidences estudiantines, Abomey-Calavi.
How to Cite this Article
Mickael Vitus Martin Kpessou Saizonou, Loic Adangnitodé, and Henri H. Soclo, “Physical and chemical characterization and evaluation of wastewater management of university residences on the Abomey-Calavi campus,” International Journal of Innovation and Applied Studies, vol. 24, no. 2, pp. 736–741, September 2018.
