How Do Wastewater Treatment Plants Remove Toxic Substances?
Wastewater treatment involves several stages to effectively remove toxins. The process begins with preliminary treatment, where large particles are filtered out. This is followed by primary treatment, which allows solids to settle and be removed. In secondary treatment, biological processes are employed to degrade organic matter and further remove toxins. Advanced treatment methods, such as chemical precipitation, membrane filtration, and adsorption, are often used to eliminate specific toxic substances like heavy metals and persistent organic pollutants.
