一体式旋回流反应器处理餐饮废水启动试验研究

Treatment restaurant wastewater with one-piece reflux reactor on the start-up experimental investigation

采用一体式旋回流反应器处理餐饮废水,对启动过程进行研究。启动期间采用间歇运行的方式进行污泥驯化,曝气时间8 h,沉淀0.5 h,排水1 h,曝气量维持不变的条件下,通过逐渐增加污泥负荷来培养驯化污泥,仅20d就完成了启动。启动完成后对COD、NH+4-N、TN、TP的去除率分别为91.81%、81.57%、54.73%、83.97%,出水水质均能达到城镇污水处理厂污染物排放标准(GB18918-2002)二级排放标准。

The integration of spin reflux reactor was adopted to treat restaurant wastewater , and the corresponding start - up process was investigated. During the startup of the intermittent operation mode was adopted for the sludge domesticated. Aeration time is eight hours. Settling time is half hour Discharge time is one hour. Under the condition of air remain unchanged, the sludge of the system was cultivated by gradually increasing sludge load , and the start- up process was completed in only 20 days. The removal of COD, NH4＋-N,TN,TP reached 91.81% ,81.57% ,54.73% and 83.97%. The main pollute discharge target achieves cities sewage treatment plant pollutant discharge standard （ GB18918 - 2002） the second standard.