Activated Sludge Foam Control BWF160 Silicone Defoamer for Activated Sludge Treatment Processes Product ModelBWF160 Ionic CharacterNonionic pH6-8 Reference Dosage50-300 ppm Application Overview Stable foam blankets can interfere with observation, splash onto walkways and transport solids out of the intended process zone. The product can be introduced at a turbulent inlet or sprayed over concentrated foam for rapid contact. Why Foam Control Matters In activated sludge