Biological Foam Control BWF160 Antifoam Agent for Biological Wastewater Treatment Systems Product ModelBWF160 Ionic CharacterNonionic pH6-8 Reference Dosage50-300 ppm Application Overview Biological foam may be driven by surfactants, filamentous organisms, high organic loading or operating imbalance, so chemical control alone may not remove the root cause. BWF160 is formulated for use in biological water-treatment systems and is described as not interfering with activated