Coagulation, Evaporis, Greendaf, Wastewater, Sludge dewatering, Primary treatement, Sludge thickening, Sludge digestion, Anaerobic, Flocculation, Sedipac, Flottation ... Coagulation Evaporis Greendaf Wastewater Sludge dewatering Primary treatement Sludge thickening Sludge digestion Anaerobic Flocculation Sedipac Flottation ... Sludge dewatering Flocculation/Sedimentation/Flotation Pretreatment Biological processes...