[ Influence d’une usine hydrométallurgique en activité sur la qualité des eaux du canal Naviundu: Cas de l’usine Chemical of Africa (CHEMAF) Lubumbashi/Katanga,
RD. Congo ]
Volume 16, Issue 2, July 2015, Pages 433–447
Serge Kashimbo Kalala1, B. Mongoli Mwanga2, P. Kazadi Kanyama3, and Michel Mpundu Mubemba4
1 Département de Phytotechnie, Faculté des Sciences Agronomiques, Université de Lubumbashi, BP 1825, Lubumbashi, RD Congo
2 Département de Phytotechnie, Faculté des Sciences Agronomiques, Université de Lubumbashi, BP 1825, RD. Congo
3 Département de Biochimie, Faculté de Médecine Vétérinaire, Université de Lubumbashi (2012), B.P 1825, RD Congo
4 Département de phytotechnie, Faculté des sciences Agronomiques, Université de Lubumbashi BP 1825, Lubumbashi, Democratic Republic of the 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.
Analysis of physicochemical parameters (T°, pH, EC, ORP) and ETM along the Naviundu channel on the water and the sediment was made to establish a diagnosis of the state of surface water of the river downstream of the plant hydrometallurgical Chemical of Africa (CHEMAF). Thus, samples were taken from nine stations in the rainy season. In view of the physic-chemical parameters measured on water samples, it is easy to conclude that it is of poor quality and can be of no use without prior treatment. Laboratory results on water samples show extremely high values for Cu, Co and U 9903, respectively, 29,758 and 0,016 mg/L at the exit of effluent CHEMAF factory, station 1. The Pb and Cd were also high levels exceeding the WHO standard in all stations although they decrease with increasing distance from the CHEMAF factory. The iron in the sediment comes from the soil geochemical background and presents correlations with ETM especially in remote stations of the plant while Cu and Co have a higher content of the guidelines of the sediment quality. The presence of high concentrations of Cu, Co, U, Cd and Pb in water and sediment at the first station (SW1) adequately demonstrates that the effluent from the metallurgical activities CHEMAF plant does not undergo treatment before to be discharged into the river Naviundu whose self-purifying capacity is limited.
Author Keywords: Contamination, Surface water, effluent, CHEMAF, physicochemical parameters, ETM.
Volume 16, Issue 2, July 2015, Pages 433–447
Serge Kashimbo Kalala1, B. Mongoli Mwanga2, P. Kazadi Kanyama3, and Michel Mpundu Mubemba4
1 Département de Phytotechnie, Faculté des Sciences Agronomiques, Université de Lubumbashi, BP 1825, Lubumbashi, RD Congo
2 Département de Phytotechnie, Faculté des Sciences Agronomiques, Université de Lubumbashi, BP 1825, RD. Congo
3 Département de Biochimie, Faculté de Médecine Vétérinaire, Université de Lubumbashi (2012), B.P 1825, RD Congo
4 Département de phytotechnie, Faculté des sciences Agronomiques, Université de Lubumbashi BP 1825, Lubumbashi, Democratic Republic of the 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
Analysis of physicochemical parameters (T°, pH, EC, ORP) and ETM along the Naviundu channel on the water and the sediment was made to establish a diagnosis of the state of surface water of the river downstream of the plant hydrometallurgical Chemical of Africa (CHEMAF). Thus, samples were taken from nine stations in the rainy season. In view of the physic-chemical parameters measured on water samples, it is easy to conclude that it is of poor quality and can be of no use without prior treatment. Laboratory results on water samples show extremely high values for Cu, Co and U 9903, respectively, 29,758 and 0,016 mg/L at the exit of effluent CHEMAF factory, station 1. The Pb and Cd were also high levels exceeding the WHO standard in all stations although they decrease with increasing distance from the CHEMAF factory. The iron in the sediment comes from the soil geochemical background and presents correlations with ETM especially in remote stations of the plant while Cu and Co have a higher content of the guidelines of the sediment quality. The presence of high concentrations of Cu, Co, U, Cd and Pb in water and sediment at the first station (SW1) adequately demonstrates that the effluent from the metallurgical activities CHEMAF plant does not undergo treatment before to be discharged into the river Naviundu whose self-purifying capacity is limited.
Author Keywords: Contamination, Surface water, effluent, CHEMAF, physicochemical parameters, ETM.
Abstract: (french)
L’analyse des paramètres physico-chimiques (T°, pH, C.E, ORP) et d’ETM le long du canal Naviundu sur l’eau et le sédiment a été faite pour établir un diagnostic de l’état des eaux de surface de cette rivière située en aval de l’usine hydrométallurgique Chemical of Africa (CHEMAF). Ainsi, des prélèvements ont été effectués dans neuf stations en saison des pluies. Au regard des paramètres physico-chimiques mesurés sur les échantillons d’eau, il est aisé de conclure que celle-ci est de mauvaise qualité et ne peut faire l’objet d’aucun usage sans traitement préalable. Les résultats de laboratoire sur les échantillons d’eau montrent des valeurs extrêmement élevées pour le Cu, le Co et l’U respectivement 9.903, 29.758 et 0.016 mg/L à la sortie des effluents de l’usine CHEMAF, à la station 1. Le Pb et le Cd ont des teneurs élevées dépassant aussi la norme de l’OMS, dans toutes les stations bien qu’ils diminuent à mesure qu’on s’éloigne de l’usine CHEMAF. Le fer présent dans le sédiment provient du fond pédogéochimique et présente des corrélations avec les ETM surtout dans les stations éloignées de l’usine tandis que le Cu et le Co présentent une teneur supérieure aux directives de la qualité des sédiments. La présence des teneurs élevées en Cu, Co, U, Cd et Pb dans l’eau et le sédiment à la première station (SW1) démontre à suffisance que les effluents issus des activités métallurgiques de l’usine CHEMAF ne subissent pas de traitement avant d’être déversés dans le canal Naviundu dont la capacité auto-épuratrice est limitée.
Author Keywords: Contamination, Eaux de surface, Effluent, CHEMAF, Paramètres physico-chimiques, ETM.
How to Cite this Article
Serge Kashimbo Kalala, B. Mongoli Mwanga, P. Kazadi Kanyama, and Michel Mpundu Mubemba, “Influence of a hydrometallurgical plant in active on the water quality of the Naviundu channel: Case of the Chemical Plant of Africa (CHEMAF) Lubumbashi / Katanga, DR. Congo,” International Journal of Innovation and Scientific Research, vol. 16, no. 2, pp. 433–447, July 2015.
