Chemical-Aided Sedimentation of Sewage | Waste Management
Chemical-aided sedimentation of sewage is analogous to chemical coagulation, flocculation and sedimentation in water treatment. The colloidal and finely dispersed solids which cannot be removed by plain primary sedimentation alone, as they possess extremely low settling velocities, are aggregated into settleable particles by addition of chemicals known as coagulants in chemical-aided sedimentation. Chemical-aided sedimentation involves the unit processes and operations [...]