Wastewater Treatment Performance of Aerated Lagoons, Activated Sludge and Aerated Lagoons by oxylague under an arid Algerian Climate

In addition to negatively impacting soil, vegetation, and environmental processes, water pollution decreases the amount of fresh water available, particularly in dry regions experiencing water stress. By raising wastewater quality to a level appropriate for irrigation, wastewater treatment methods seek to lessen environmental deterioration and boost water availability. The technical, environmental, and operational performance of three wastewater treatment facilities (WWTPs) in the Wilaya of Naama is thoroughly examined in this study, an arid region of Algeria: (i) aerated lagoon (AL), (ii) activated sludge (AS), and (iii) aerated lagoon by oxylague. The statistical study focused on the comparison between the removal rates of the physical (SS) and biological pollutants (BOD ₅ and COD) parameters in the three stations during 4 years of exploitation. The data obtained indicate that the AS procedure had the highest removal rates, whereas the AL method had the lowest. The AS process differs significantly from the AL and ALO procedures, as seen by the comparison of removal rates for a particular parameter. There is a difference for the latter two processes, ALand ALO, but it is not statistically significant. This research underscores the importance of adaptive and integrated management of sanitation systems in arid zones.