Abstract:

The domestic sewage with low C/N has been treated by using the sequencing batch moving-bed. Theeffects of the carriers plugging rate and aeration quantity on the treatment efficiency have been discussed. It isconfirmed that the optimal carriers plugging rate is 53% ， and the optimal aeration quantity is 0.07 L/h. Underthe selected experimental conditions， the average removal rate of COD is about 87% ， NH₄₊-N removal rate ismore than 93% and the highest removal rate of TN is 65%. And， nitrification and denitrification take placesimultaneously. The result also indicates that reactor has pretty good efficiency on treating domestic sewage withlow C/N.

Key words: moving-bed biolfilm reactor, domestic sewage, low C/N

摘要：

通过序批式移动床生物膜反应器(MBBR)处理低COD/TN(C/N)生活污水的试验研究,探讨了载体填充率、曝气量对处理效果的影响,确定适合反应器的填充率为53%,最佳曝气量为0.07 L/h。在该实验条件下,COD平均去除率为87%左右,氨氮去除率均在93%以上,TN去除率最高为65%,发生了同时硝化反硝化现象,结果表明:反应器对低C/N生活污水有较好的处理效果。

关键词: MBBR, 生活污水, 低C/N

CLC Number: 

• X703.1