CHARACTERIZATION AND METHODS OF TREATING WASTE WATER FROM THE CITY OF TIFLET

Over the last few decades, the standard of living and particularly the health conditions of the population of the town of Tiflet has undergone a major transformation contributing significantly to an unprecedented population explosion. This conversion to urbanization has not been without negative impact on the environment, due to the disposal of colossal quantities of untreated waste water in Oued Tiflet and its use in agriculture. In this context, and in order to preserve the city's environment, the search for a wastewater treatment process has become a major concern. The objective of this work is to evaluate the pollution rate of the city's wastewater by elaborating specific bacteriological and physico-chemical parameters. Our results showed that these parameters are far from complying with the standards set by the public authorities in terms of irrigation and discharge of wastewater into the natural environment. Moreover, this study shows that the coagulation-flocculation treatment process using FeCl3 allows a better efficiency in terms of turbidity (99.39%) and BOD5 (66.95%) abatement after a settling that follows Kynch's law. However, the biological treatment allows to reach respectively 47.95 % of turbidity and 61.5 % of BOD5.