Membrane Aerated Biofilm Reactor (MABR) technologies from Fluence provide an energy-efficient alternative based on passive aeration, i.e. the diffusion of oxygen through membranes. Available as smart-packaged decentralized systems, or retrofit to existing plants for increased capacity, MABR technology provides simultaneous BOD, TN and TP removal all in a single pass. During the process, an aerobic nitrifying biofilm develops on the surface of the membranes, enabling simultaneous nitrification and denitrification. Effluent exceeds EPA standards. 800-879-3677; www.fluencecorp.com