水车驱动好氧生物转盘附载填料挂膜的特性及处理效果  

Characteristics and Treatment Effect of Waterwheel Driving Aerobic Rotating Biological Contactor on Biofilm Carrier Formation

作　　者：巩子傲 汪思宇 吕锡武[1] GONG Zi’ao;WANG Siyu;LÜXiwu(School of Energy and Environment,Southeast University,Nanjing 210096,China;Engineering Research Center of Wuxi Taihu Lake Water Environment,Southeast University,Wuxi 214000,China)

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

出　　处：《净水技术》2021年第9期84-90,96,共8页Water Purification Technology

基　　金：国家水体污染控制与治理科技重大专项(2017ZX07202004-002)。

摘　　要：以“缺氧调节-好氧-经济型人工湿地”生物生态组合工艺中好氧单元技术———水车驱动好氧生物转盘为研究对象,选择毛毡、碳毡、无纺布3种挂膜填料,对比其污染物去除性能和微生物富集特性,从而确定最适填料。结果表明,无纺布填料生物转盘硝化效果和生物亲和性优于其余两种填料,对CODCr、氨氮的平均去除率分别为84.3%和80.5%。附载无纺布填料后,转盘驱动效果有所下降,但复氧效能大幅度提升,挂膜稳定阶段两级生物转盘的CODCr、氨氮平均去除率分别为86.76%±0.85%和92.15%±1.49%。As the aerobic unit technology of"anoxic-aerobic-economical constructed wetland"biological and ecological combination process,waterwheel driving aerobic rotating biological contactor(wdRBC)was taken as the research object.In order to determine the most suitable carrier,three types of biofilm carriers:felt,carbon felt and non-woven fabric were selected to compare its pollutant removal performance and biofilm formation characteristics.Results showed that the nitrification effect and biocompatibility of non-woven loading rotating biological contactor were better than the other two carriers,and the average removal rates of CODCr and ammonia nitrogen were 84.3%and 80.5%,respectively.Driving effect of rotating biological contactor was reduced after loading non-woven fabric,but reoxygenation efficiency was greatly improved;the average removal rate of CODCr and ammonia nitrogen of two-stair rotating biological contactor in the stable period were 86.76%±0.85%and 92.15%±1.49%,respectively.

关 键 词：农村生活污水 水车驱动好氧生物转盘 硝化反应 总传质系数 挂膜启动 

分 类 号：TU992[建筑科学—市政工程]