Wastewater treatment is a technique that improves water quality by removing all impurities, allowing them to be reused or discharged back into the environment. They roughly categorized wastewater treatment methods into three types, which are:
• Physical treatment is the process of removing pollutants/contaminants on a physical basis.
• Chemical treatment is removing impurities or harmful wastes through chemical reactions.
• Biological treatment is the process of removal of contaminants through biological processes.