Sewage treatment plants (STPs) utilize a range of chemicals to effectively treat wastewater and ensure it meets environmental standards. Common chemicals used in STPs include coagulants like alum, which help in flocculation, and disinfectants such as chlorine or ozone to kill harmful pathogens. pH adjusters like lime or sulfuric acid are used to maintain optimal conditions for treatme... https://www.watertreatmentplants.in/what-chemicals-does-sewage-treatment-plant-use/