| Abstract:A new 2900m3 IC anaerobic reactor has been built by an OCC papermaking company to use anaerobic granular sludge from the same kind of wastewater plant to treat its wastewater. After 21-day start up, the IC anaerobic reactor reached the design loading and could treat OCC papermaking wastewater 15000m3 with total COD 50000kg per day. The COD removal rate was 72-86%, and the VFA of reactor outlet remained 30-110mg/L, indicating the new IC anaerobic reactor had been started successfully in a short time. |