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Contribution to the study of the seasonal variation of the physicochemical and metallic parameters of a reservoir in a tropical environment: Case of Ilauko reservoir at Savè in Benin

Author Affiliations

  • 1International Chair in Mathematical Physics and Applications (ICMPA), Cotonou, Benin and Laboratory of Applied Hydrology (LHA), National Institute of water, Abomey-Calavi, Benin
  • 2International Chair in Mathematical Physics and Applications (ICMPA), Cotonou, Benin and Laboratory of Applied Hydrology (LHA), National Institute of water, Abomey-Calavi, Benin
  • 3Laboratory of Applied Hydrology (LHA), National Institute of water, Abomey-Calavi, Benin
  • 4Laboratory of Applied Hydrology (LHA), National Institute of water, Abomey-Calavi, Benin
  • 5Laboratory of Applied Hydrology (LHA), National Institute of water, Abomey-Calavi, Benin
  • 6Laboratory of Applied Hydrology (LHA), National Institute of water, Abomey-Calavi, Benin and West Africa Science Service Center on Climate Change and Adapted Land Use, National Institute of water, Abomey-Calavi, Benin

Res.J.chem.sci., Volume 7, Issue (9), Pages 17-28, September,18 (2017)

Abstract

This study, that is carried out on, Ilauko dam of the SUCOBE Company, (i.e., Society of Sugar of Savè (SSS)), is the most important drinking water supply for the population of Savè and its surroundings. The objective of this study is to analyze the physico-chemical and metallic quality of Ilauko reservoir water in order to manage this resource rationally in a sustainable way for the benefit of the populations. To achieve this goal, eleven (11) points were followed for one year period. The results from the physicochemical analyses reveal the low oxygen contents dissolved under the effect of the increase of the temperature and the raise of phosphorus and chlorophyll; this characterizes the phenomenon of eutrophication. The values of the nutrients such as nitrogen and phosphorus are largely higher than the limiting values indicated by the system of classification of the Organization for Economic Cooperation and Development (OECD). Water of the dam Ilauko is therefore eutrophic.

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