THe OMNIFLO® Sequencing Batch Reactor System is a fill-and-draw, non-steady state activated sludge process where one or more reactor basins are filled with wastewater and are operated in a batch mode. Through changing the operating strategy, aerobic, anaerobic or anoxic conditions can be attained to aid in the growth of preffered micro-organisms. This system is capable performing nitrification, denitrification, and biological phosphorous removal when needed. It also possesses a no sludge recycle system.