Development of a Novel Hydrodynamic Sequencing Batch Reactor for Landfill Leachate Treatment by Shortcut Biological Nitrogen Removal

This study introduced an alternative shortcut biological nitrogen removal (SBNR) process for landfill leachate treatment by developing a novel hydrodynamic sequencing batch reactor (H-SBR). The could enhance the oxygen transfer rate (OTR) and nitrite accumulation ratio (NAR) modifying internal turbulence intensity. average chemical demand (COD) total (TN) concentrations into were 660 250 mg L−1, respectively, efficiencies 93% 96% (TN). effect of geometric parameters on was estimated performing model nonlinear least square analysis. After correcting constants (α β) mass coefficients (KLa) to values 0.7361 1.2639, data fit experiment well with R-squared value 0.99. OTR improved up 30%, hence, increased NAR 20% reduction about 0.5 kg N kW−1 power efficiency. H-SBR development is innovative because efficiency modification intensity, although not mechanical equipment or supplements. For SBNR process, configuration enhancement significantly improve successful accumulation. In addition treatment, can be employed in low C/N wastewaters.