Caractérisation de deux effluents industriels au Togo :étude d’impact sur l’environnement

Abstract

Characterization of two industrial effluents in Togo : environment impact study

Environment pollution due to two industrial effluents has been investigated. Results how that effluent derive from the factory of the treatment of Kpémé posphate ore was  loaded with settling suspended matter (> 90 % of total suspended solids). Suspended solids contained metallic elements, about 17.5 μg g-1 as cadmium (Cd) were measured. Water around the input point of the effluent (effluent is discharged in the sea) had a turbidity as high as 200 NTU. The study did not show a particular metallic contamination (Cd and Hg) of some fish species. Datcha textile industry effluent was characterized by high alkalinity (pH > 10) and by high concentrations of suspended solids (500-650 mg L-1), oxydable matter (COD = 340-380 mgO2 L-1) and organic nitrogen (30-40 mgN L-1).