Comparison of Particle Behavior in Sewage Treatment Facilities

The behavior of particles was investigated in SBR and A2O systems, which are representative wastewater treatment methods. The SBR reactor was designed with a capacity of 8 L, the influent flow rate was 12 L/day, and the operating cycle was set to 4.0 hr/cycle. The influent characteristics were as follows: MLSS 1,700 mg/L, TOC 78.8 mg/L, SS 180.0 mg/L, T-N 44.394 mg/L, and T-P 4.666 mg/L. Particle behavior was analyzed by size (≥1.2 μm, 0.2-1.2 μm, ≤0.2 μm) and ionic metal substances. The results