Aqua-Aerobic Systems and Royal HaskoningDHV signed an agreement making Aqua-Aerobic Systems the exclusive provider of the Nereda Granular Biomass Treatment System in the U.S. Aqua-Aerobic Systems will build a full-scale Nereda granular activated sludge process at the Rock River Water Reclamation District in Rockford, Illinois. Nereda replicates the effluent quality of an enhanced BNR facility without the use of chemicals by using aerobic granular sludge technology. The reduced footprint and low energy requirement provide a competitive alternative for high-performance plants.