[ EVALUATION DU DEGRE DE POLLUTION DES EAUX LITTORALES DU LAC KIVU: CAS DU BASSIN DE BUKAVU ]
Volume 18, Issue 1, September 2015, Pages 41–57
Cibikwa Désiré LUTWAMUZIRE1, Kajunju Napoléon HERI2, Shembe Franklin BEKA3, Cishesa Thierry HERI4, and Chakirwa Henry MUSHAGALUSA5
1 Section Agro vétérinaire, Institut Supérieur d'Etudes Agronomiques et Vétérinaires (ISEAV/ WALUNGU), Bukavu, Sud Kivu, RD Congo
2 Section Agro vétérinaire, Institut Supérieur d'Etudes Agronomiques et Vétérinaires (ISEAV/ WALUNGU), Bukavu, Sud Kivu, RD Congo
3 Section Agro vétérinaire, Institut Supérieur d'Etudes Agronomiques et Vétérinaires (ISEAV/ WALUNGU), Bukavu, Sud Kivu, RD Congo
4 Section Agro vétérinaire, Institut Supérieur d'Etudes Agronomiques et Vétérinaires (ISEAV/ WALUNGU), Bukavu, Sud Kivu, RD Congo
5 Section Agro vétérinaire, Institut Supérieur d'Etudes Agronomiques et Vétérinaires (ISEAV/ WALUNGU), Bukavu, Sud Kivu, RD Congo
Original language: French
Copyright © 2015 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.
This research consisted to the assessment of the degree of pollution of the waters of the Kivu lake: case of the basin of Bukavu, being given the different affluents that himself pours there with all ways of garbages.
The objective of this last is to achieve a qualitative survey of the waters of the Kivu lake according to the ecological norms in the determination of the temperature, the pH, the alkalinity or the acidity, of the dissolved oxygen and of the biologic and chemical demand in oxygen on one hand; and on the other hand the comparison of the pollution degree in the different mentions retained: SNCC, BRALIMA, PHARMAKINA, BWINDI, KAZINGO and RUZIZI, the waters of large having served like witnesses.
After analysis of results, he/it cleared himself/itself what follows:
- The temperature of the waters of the Kivu lake is variable next one seasons with an average of 23°C;
- The waters of the lake are alkali and variable according to seasons;
- The dissolved oxygen is variable between 2,92 and 4,84mg/l, what is an admissible value for a better life in the aquatic middle because lower to 5mg/l.
He/it is therefore conclusive that the waters of the coastline of the Kivu lake in the basin of Bukavu are polluted in the decreasing order in sites of the following manner: SNCC, PHARMAKINA, KAZINGO, BRALIMA and BWINDI.
Author Keywords: Pollution, dissolved Oxygen, Alkalinity, biologic and chemical Demand, pH, Basin of Bukavu, Coastal, Temperature.
Volume 18, Issue 1, September 2015, Pages 41–57
Cibikwa Désiré LUTWAMUZIRE1, Kajunju Napoléon HERI2, Shembe Franklin BEKA3, Cishesa Thierry HERI4, and Chakirwa Henry MUSHAGALUSA5
1 Section Agro vétérinaire, Institut Supérieur d'Etudes Agronomiques et Vétérinaires (ISEAV/ WALUNGU), Bukavu, Sud Kivu, RD Congo
2 Section Agro vétérinaire, Institut Supérieur d'Etudes Agronomiques et Vétérinaires (ISEAV/ WALUNGU), Bukavu, Sud Kivu, RD Congo
3 Section Agro vétérinaire, Institut Supérieur d'Etudes Agronomiques et Vétérinaires (ISEAV/ WALUNGU), Bukavu, Sud Kivu, RD Congo
4 Section Agro vétérinaire, Institut Supérieur d'Etudes Agronomiques et Vétérinaires (ISEAV/ WALUNGU), Bukavu, Sud Kivu, RD Congo
5 Section Agro vétérinaire, Institut Supérieur d'Etudes Agronomiques et Vétérinaires (ISEAV/ WALUNGU), Bukavu, Sud Kivu, RD Congo
Original language: French
Copyright © 2015 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
This research consisted to the assessment of the degree of pollution of the waters of the Kivu lake: case of the basin of Bukavu, being given the different affluents that himself pours there with all ways of garbages.
The objective of this last is to achieve a qualitative survey of the waters of the Kivu lake according to the ecological norms in the determination of the temperature, the pH, the alkalinity or the acidity, of the dissolved oxygen and of the biologic and chemical demand in oxygen on one hand; and on the other hand the comparison of the pollution degree in the different mentions retained: SNCC, BRALIMA, PHARMAKINA, BWINDI, KAZINGO and RUZIZI, the waters of large having served like witnesses.
After analysis of results, he/it cleared himself/itself what follows:
- The temperature of the waters of the Kivu lake is variable next one seasons with an average of 23°C;
- The waters of the lake are alkali and variable according to seasons;
- The dissolved oxygen is variable between 2,92 and 4,84mg/l, what is an admissible value for a better life in the aquatic middle because lower to 5mg/l.
He/it is therefore conclusive that the waters of the coastline of the Kivu lake in the basin of Bukavu are polluted in the decreasing order in sites of the following manner: SNCC, PHARMAKINA, KAZINGO, BRALIMA and BWINDI.
Author Keywords: Pollution, dissolved Oxygen, Alkalinity, biologic and chemical Demand, pH, Basin of Bukavu, Coastal, Temperature.
Abstract: (french)
Cette recherche a consisté à l'Evaluation du degré de pollution des eaux du lac Kivu : cas du bassin de Bukavu, étant donné les différents affluents qui s'y déversent avec toutes sortes de déchets.
L'objectif de cette dernière est de réaliser une étude qualitative des eaux du lac Kivu suivant les normes écologiques dans la détermination de la température, du pH, de l'alcalinité ou de l'acidité, de l'oxygène dissous et de la demande biologique et chimique en oxygène d'un côté ; et de l'autre côté la comparaison du degré de pollution dans les différents sites retenus : SNCC, BRALIMA, PHARMAKINA, BWINDI, KAZINGO et RUZIZI, les eaux de large ayant servies comme témoins.
Après analyse des résultats, il s'est dégagé ce qui suit :
- La température des eaux du lac Kivu est variable suivant les saisons avec une moyenne de 23°C ;
- Les eaux du lac sont alcalines et variables suivant les saisons ;
- L'oxygène dissous est variable entre 2,92 et 4,84mg/l, ce qui est une valeur admissible pour une vie meilleure dans le milieu aquatique car inférieure à 5mg/l.
Il est donc concluant que les eaux du littoral du lac Kivu dans le bassin de Bukavu sont polluées dans l'ordre décroissant dans les sites de la manière suivante : SNCC, PHARMAKINA, KAZINGO, BRALIMA et BWINDI.
Author Keywords: Pollution, Oxygène dissous, Alcalinité, Demande biologique et chimique, pH, Bassin de Bukavu, Littorale, Température.
How to Cite this Article
Cibikwa Désiré LUTWAMUZIRE, Kajunju Napoléon HERI, Shembe Franklin BEKA, Cishesa Thierry HERI, and Chakirwa Henry MUSHAGALUSA, “ASSESSMENT OF THE DEGREE OF POLLUTION OF THE COASTAL WATERS OF THE LAKE KIVU: CASE OF THE BUKAVU BASIN,” International Journal of Innovation and Scientific Research, vol. 18, no. 1, pp. 41–57, September 2015.
