移动床生物反应器处理低C/N比生活污水试验研究  

Experimental Study on Treatment of Sewage with Low C/N Ratio Using Moving-bed Biofilm Reactor

作　　者：魏海娟[1] 张永祥[1] 施同平[1] 张璨[1] 田淼[1] 

机构地区：[1]北京工业大学建筑工程学院,北京100124

出　　处：《环境科学与技术》2009年第7期6-9,13,共5页Environmental Science & Technology

基　　金：国家自然科学基金项目(40372113)

摘　　要：通过移动床生物膜反应器处理低C/N比生活污水的试验研究,探讨了填料填充率、曝气量和水力停留时间对处理效果的影响,确定出了适合反应器的填充率为53%,最佳曝气量为0.07L/h,最佳水力停留时间为8h。在该实验条件下,COD平均去除率在85%左右,TN去除率最高为62%,平均生物浓度2.63mg/L,生物膜活性强,结果表明反应器对低C/N比生活污水有较好的处理效果。Treatment of sewage with low C/N ratio was studied by experiment, and the effects of carriers, aeration quantity and hydraulic retention time （HRT） on treatment efficiency were discussed. Results showed that under the optimal carriers rate of 53%, aeration quantity 0.07L/h and HRT 8h, average removal efficiency of COD and TN could reach more than 85% and 62% respectively. Aeration biological concentration could reach 2.63mg/L, which indicated that the reactor has strong capability for treatment of sewage with low C/N ratio.

关 键 词：移动床 生物反应器 生活污水 低C/N比 

分 类 号：X131.2[环境科学与工程—环境科学]