Combined Efficacy of Lawsonia inermis and Myrtus communis Extract as a Potential Factor in Bacterial Treatment to Hospital Wastewater, Iraq

The current study aimed to use biological treatment using plant extracts; extracted from some locally available plants: Lawsonia inermis (Henna), and Myrtus communis (Yass), against pathogenic bacteria isolated from heavy water in hospitals that do not have treatment plants. The two studied plants were extracted using two different solvents (water and alcohol). Diagnosis of these extracted using Gas chromatography (GC-MS) showed that the alcoholic extraction led to a higher percentage of effective phenolic compounds than the aqueous extract. Sewage water was used to isolate bacteria and according to the morphological, and biochemical, confirmed by using the vitke II instrument; six types of pathogenic bacteria were identified (Staphylococcus lentus, Staphylococcus xylosus Sphingomonas paucimobilis, Escherichia coli, klebsiella oxytoca, Serratia ficaria). The two Alcoholic plant extracted showed excellent antibacterial activity against all pathogenic bacteria than the water extracted as revealed by the diameter of the inhibition zone.