Sewage treatment plants (STPs) use a variety of chemicals to treat wastewater effectively. These chemicals help in processes such as coagulation, flocculation, disinfection, and pH adjustment. Common chemicals include alum for coagulation, chlorine or ozone for disinfection, lime for pH control, and activated carbon for odor removal. Netsol Water, a leading manufacturer of STPs, ensur... https://www.watertreatmentplants.in/what-chemicals-does-sewage-treatment-plant-use/