Sewage Effluent: Other Methods of Cleanup

Sewage Effluent

This method of cleaning consists of three stages. Pre-treatment, primary, and secondary treatment. Pre-treatment removes material that can be easily collected from the wastewater. The primary treatment is sedimentation stage. During this stage sewage flows through large tanks called "primary clarifiers" or "primary sedimentation tanks." The tanks are used to settle sludge while grease and oils rise to the surface and are removed. Secondary Treatment is designed to substantially degrade the biological content of the sewage which are come from human waste, food waste, soaps and detergent.