How Many Types of Wastewater Treatment Plants Wastewater treatment is an essential process for protecting public health and the environment by removing contaminants from water that have been used for domestic, commercial, or industrial activities. Untreated wastewater can contain harmful substances like organic matter, nutrients, pathogens, toxic chemicals, and other pollutants that pose risks to human health and aquatic ecosystems if discharged directly. Visit the link: https://www.netsolwater.com/types-of-wastewater-treatment-plants.php?blog=6244