厌氧膨胀床+快速渗滤土地处理系统处理小城镇污水  

Treatment of Domestic Sewerage from Small Towns with the Combined Process of EGSB and CRI

作　　者：蒋柱武[1] 陈礼洪[1] 邬友东[2] 马利民[2] 崔程颖[2] 张亚雷[2] 

机构地区：[1]福建工程学院给排水教研室,福建福州350108 [2]同济大学污染控制与资源化研究国家重点实验室,上海200092

出　　处：《苏州科技学院学报（工程技术版）》2011年第2期10-14,共5页Journal of Suzhou University of Science and Technology （Engineering and Technology）

摘　　要：采用厌氧膨化床(AEBR)+快速渗滤土地处理系统(CRI)处理小城镇污水,装置启动后,厌氧膨胀床和土地快速渗滤系统的容积负荷分别为0.71 kgCOD/(m3.d)和0.012 kgCOD/(m3.d);AEBR的水力停留时间为4.5 h,回流比为400%;CRI的水力负荷为0.02 m3/(m2.d),湿干周期比约为1∶6。系统在稳定运行期对COD、总氮、氨氮、总磷的平均去除率分别达到83%、85%、87%、79%,达到《城镇污水处理厂污染物排放标准》(GB18918-2002)规定的一级标准。AEBR+CRI处理城镇污水的污泥产率低,约为0.04 kgVSS/kgCOD。In this study,the combined process of Anaerobic Expanded Blanket Reactor（AEBR） and Constructed Rapid Infiltration System（CRI） was used to treat the domestic sewage from the small towns.After the start-up,the volume load of AEBR and CRI was 0.71 kgCOD/（m3·d） and 0.012 kgCOD/（m3·d） respectively.The hydraulic retention time（HRT） in AEBR was 4.5 hours,and the reflux ratio of it was 400%.The hydraulic loading of CRI was 0.02 m3/（m2·d）,and the wet/dry ratio of it was 1∶6.During the stable operation,the removal efficiency of COD,T-N,NH3-N was 83%,85%,87% and 79% respectively,the effluent concentration achieving the first standard in ＂Cities Sewage treatment plant Pollutant discharge Standard＂（GB18918-2002）.The sludge yield by this system was low,about 0.04 kgVSS/kgCOD.

关 键 词：小城镇污水 厌氧膨胀床 快速渗滤土地处理系统 

分 类 号：X703[环境科学与工程—环境工程]