Applied Biology in Saharan Areas
Volume 2, Numéro 1, Pages 26-32
2018-03-15

The Effects Of Wastewater On Groundwater Quality Of The Bechar Aquifer , South West Of Algeria

Authors : Achar Soumia . Menir Wahiba .

Abstract

In urban areas, population growth generates significant quantities of wastewater that is treated in sewage treatment plants discharged directly or specialize in short uncontrolled water in Bechar Oued. Because of their different origins (domestic waste).Consequently groundwater can be contaminated by chemical and microbiological pollutants. The physicochemical and microbiological characteristics from 18 grandwater samples were measured to evaluate the impact of wadi Bechar wastewater on the Bechar aquifer. The results showed that the majority of samples are contaminated. It revealed alarming levels of chlorides, nitrates, nitrites, sulfates and ammonium. Eighteen groundwater samples are showing signs of recent contamination confirmed by the high rate of tested microorganisms (210 CFU coliform, fecal coliform CFU 91, streptococci D 38 CFU, Clostridium sulfite reducers 4 CFU).

Keywords

Keywords: Bacteriological quality, Chemical quality, groundwater, wastewater, Pollution Bechar