Study about acclimation process of aerobic granular sludge in SBR

In the SBR reactor, at room temperature (25°C), use artificial simulation water as sewage water, start the acclimation of anaerobic sludge, the success cultivation of acclimated granular sludge. Results show that: after 40 days acclimation, the formation of granular sludge structure dense, orange-yellow appearance, granular size mostly in the 0.5-1.5mm, SVI is 75mL/g, aerobic activated sludge MLVSS / MLSS is 85%, MLSS is 7.27g/L. System for COD, ammonia and TP removal rates were 95%, 90% and 80%, with good impact resistance and load effect of nitrogen and phosphorus simultaneously removal.