IC反应器处理OCC废水启动实践

The start-up of internal circulation(IC) treating OCC papermaking wastewater

关键词:  IC厌氧反应器  OCC废水  污泥  停留时间

Key Words:Internal Circulation(IC) anaerobic reactor  OCC papermaking wastewater  anaerobic granular sludge  hydraulic retention time(HRT)

摘要:某OCC制浆造纸企业新建造一座容积为2900m3的IC厌氧反应器，引入处理同类废水的厌氧颗粒污泥。启动21天后，IC厌氧反应器运行效果达到了设计负荷，日处理OCC制浆造纸废水15000m3，日处理COD 50000kg，COD去除率72～86%，出水VFA 稳定保持在30～110mg/L之间，新IC厌氧反应器在较短时间内完成了启动。

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.