Qualité physico-chimique et microbiologique des eaux usées traitées issues de la STEP d’Al-Atteuf (Wilaya de Ghardaïa)

Abstract

The scarcity of rainfall and the imbalance between needs and available resources help justify the agricultural use of treated wastewater. The aim of this study is to evaluate the physicochemical and microbiological quality of treated wastewater from the Atteuf wastewater treatment plant (Ghardaia city) in order to determine the opportunity for reuse of treated effluents in agriculture. In terms of physiochemical quality, it can be divided into contents from physiochemical standards that exceed the Algerian standards for reuse (CE, MES, turbidity, dissolved oxygen) within acceptable standards (pH, nitrate, orthophosphate, and ammonium). The results obtained from the microbiological parameters showed the ineffectiveness of this wastewater treatment. Therefore, it is not recommended to use this water, especially in crops for human consumption