ANALYSIS OF WASTEWATER TREATED BY THE WASTEWATER PLANT OF THE BAMAKO DERMATOLOGICAL HOSPITAL

The study on the physicochemical quality of the treated water from the Bamako Dermatological Hospital (HDB) station, this station operating with activated sludge, was carried out to determine the physicochemical parameters of this treated water. The general objective of this study is to evaluate the effectiveness of the wastewater treatment system of the Bamako Dermatological Hospital. To obtain ten (10) water samples were taken in five (5) campaigns in the different compartments of the system at the entrance and exit of the station. The results and the abatement rates obtained indicate that the HDB WWTP treatment needs additional treatment ensuring environmental and health safety, the treated wastewater from the HDB (system inlet) presents abatement rates overload indicators such as phosphate with a value of (-47.67%), cobalt (-28.81%), silver (-10.29%), nitrite (-632.71%),nitrate (-85.40%), sulfate (-6.15%) and fluoride (-56.54%). Low removal values ​​were noted for pH (0.03%), Conductivity (5.1%), Temperature (1.60%) and Dissolved Oxygen (35.82%). . Turbidity with a value of (67.42%), MES (48.63%), Chloride (53.69%), Nickel (83.69%) and Manganese (55.02%) presented considerable reduction rates. However, certain pollution parameters at the outlet were observed (MES, NO2- and PO43-) and are higher than the Malian standards for discharge into nature.