跌水生物转盘不同填料的挂膜性能及特征比较  

Comparison of Biofilm Forming Performance and Feature with Differnt Carriers in Falling Water Driving Rotating Biological Contactor

作　　者：冯静娴 吕锡武[1,2] 杨子萱 

机构地区：[1]东南大学能源与环境学院,江苏南京210096 [2]东南大学无锡分校无锡太湖水环境工程研究中心,江苏无锡214000

出　　处：《水处理技术》2017年第10期80-84,94,共6页Technology of Water Treatment

基　　金：国家重大专项项目(2012ZX07101-005);国家技术支撑项目(2015BAL01B01)

摘　　要：采用新型无能耗的跌水生物转盘,对比分析毛毡填料和海绵填料的挂膜性能,以期筛选出适其工程运行的填料。结果表明,与毛毡填料相比,海绵填料的生物转盘挂膜速度更快,硝化效果更好,对COD和NH_4^+-N的平均去除率分别为64.08%和79.24%;同时海绵填料生物转盘内的溶解氧含量比毛毡高,为微生物生长提供更合适的环境。挂膜成功后,海绵填料表明微生物的活性更强,其处理的各级转盘的比耗氧速率平均分别为4.51、4.03、3.58 mg/(g·h),硝化速率分别可以达到4.00、5.24、4.72 mg/(g·h)。The biofilm-forming performance of felt carrier and sponge carrier in falling water driving rotating biological contactor, which was a new type and no energy consumption, were comparatively analyzed to select most suitable packing materials. The results showed that compared with felt carrier,the biofilm-forming speed of sponge carrier was faster, and nitrification performance was better, and the average removal rate of COD and NH4＋-N with sponge carrier was 64.08% and 79.24%, respectively. The content of dissolved oxygen in the reactor of sponge carrier was higher, which provided more suitable environment for microbial growth. After succeeding start-up, the microbial activity of sponge carrier was stronger, and the specific oxygen updates of three stage rotating contactor were 4.51, 4.03, 3.58 mg/（g·h）, respectively; nitrification rates of all three stage rotating contactor were 4.00, 5.24, 4.72mg/（g·h）, respectively.

关 键 词：跌水生物转盘 填料 挂膜特性 

分 类 号：X703.1[环境科学与工程—环境工程]