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Innovative aerobic granular sludge (AGS) technology has proved its ability to remove organic pollutants and nutrients from wastewater treatment at the same efficiency, but at a lower costs than conventional biological process. This technology has been successfully applied in sequencing batch reactor (SBR) configuration. An experimental model bioreactor was designed for adapting the AGS technology to continuous flow conditions. This paper presents numerical results for hydrodynamics and air dispersion into bioreact...

Biological treatment is one of the most efficient process to remove biodegradable pollutants from wastewater. In practice, this process use air and activated sludge for well over a century. It is largely influenced by aeration equipment, which in addition to introducing oxygen into wastewater for oxidation of organic pollutants, they have to create hydrodynamic conditions to mix wastewater with microorganisms and with air, avoiding dead zones and microorganisms sedimentation. This stage of wastewater treatment is ...