Sewage wastewater treatment involves several crucial steps to purify contaminated water before it can be safely returned to the environment. The process typically includes stages like preliminary screening to remove large debris, followed by primary treatment where solids settle out. Secondary treatment then uses biological processes to further purify the water by breaking down organic matter. Lastly, disinfection kills remaining pathogens before the treated water is discharged or reused. Each step plays a vital role in ensuring wastewater is cleaned effectively and meets environmental standards