IFAS combines the treatment benefits of activated sludge with the inherent stability and ease of operation of attached growth film systems, increasing capacity and/or level of treatment. Adding attached growth media to a suspended growth biomass reactor provides additional biomass for increased treatment without increasing the clarifier solids loading. Media can be added to either aerobic or anoxic zones for kinetic optimization. 

IFAS features

• attached growth and suspended biomass
• maximizes biomass concentration
• reduces sludge production and excellent settling characteristics 

Download Whitepapers & Case Studies

Download: Improving Industrial SBR Treatment

Download: IFAS Pilot Study for Cold Weather Nitrogen Reduction

Download: Eight Years of Successful Cold Weather Nitrification

Download: Demonstration of IFAS Technology for Cold Temperature Nitrification in Lagoon WWTFs