Separate microbial environments. An anaerobic basin, aerobic nitrification zone and post-anoxic denitrification zone lead to clarification and phosphorus-rich sludge wasting.
• 3D scene parts: Anaerobic selector; aerobic nitrification; post-anoxic denitrification; clarifier / sludge wasting; n / p pathways. • Controls: Influent ammonium nitrogen (10–60 mg N/L); Influent phosphorus (2–12 mg P/L); Aerobic DO (0–4 mg/L); Carbon availability (0–1 fraction); Potential P capture (0.2–0.9 fraction). • Live readouts: Effluent ammonium (mg N/L); Effluent nitrate (mg N/L); Converted to N₂ (mg N/L); Effluent phosphorus (mg P/L). • Guided experiments: No aerobic oxygen; No available carbon. • Four tabs (visual laboratory, curves and measurements, experiments, learn and assess), a model-verification run, a timestamped event log and a trial report.
fn = 0.9 DO/(DO+0.5); fd = 0.9 carbon NH₄-N = Nin(1−fn) NO₃-N = Nin fn(1−fd); N₂-N = Nin fn fd Pout = Pin(1−pRemoval×carbon)
Prescribed conversion fractions for an anaerobic→aerobic→post-anoxic train. Nitrogen is conserved among three modeled outputs. No detailed PAO, biomass, sludge-age, recycle or kinetic model. Try the preset experiments, then compare the live readouts with the equations.
Nitrogen gas and phosphorus solids differ..
No. Prescribed conversion fractions for an anaerobic→aerobic→post-anoxic train. Nitrogen is conserved among three modeled outputs. No detailed PAO, biomass, sludge-age, recycle or kinetic model.
Prescribed conversion fractions for an anaerobic→aerobic→post-anoxic train. Nitrogen is conserved among three modeled outputs. No detailed PAO, biomass, sludge-age, recycle or kinetic model.