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Moving Bed Biofilm Reactor (MBBR) processes deploy specially engineered virgin HDPE carriers that circulate freely throughout the aeration basin. Protected biofilm grows on the extensive active surface area of each carrier, digesting dissolved organic carbon (BOD/COD) and converting ammonia to nitrate (nitrification) with remarkable stability.
Because the biomass is attached rather than suspended, MBBR tanks do not require return activated sludge (RAS) lines and remain immune to hydraulic shock loads and toxic peaks.