滴滤池／人工湿地组合工艺处理农村生活污水  

Combined Process of Trickling Filter and Constructed Wetland for Rural Domestic Wastewater Treatment

作　　者：戴世明[1] 白永刚[2] 吴浩汀[1] 吕锡武[1] 

机构地区：[1]东南大学环境科学与工程系,江苏南京210096 [2]江苏省环境科学研究院,江苏南京210036

出　　处：《中国给水排水》2008年第7期21-24,共4页China Water & Wastewater

基　　金：国家高技术研究发展计划(863)项目(2002AA601012-1A)

摘　　要：为适应农村生活污水处理高效、低耗、管理简单的要求，研发了滴滤池／人工湿地组合工艺，考察了滴滤池的最佳运行参数以及改善系统脱氮除磷效果的措施。结果表明：采用该组合工艺处理农村生活污水是完全可行的，对COD、NH4^＋ -N、TN、TP的平均去除率分别可达73．6％、89．5％、61．7％和78．4％，且运行费用仅为0．23元／m^3。滴滤池的容积负荷宜控制在0．3～0．5kgCOD／（m^3·d），并应使水力负荷〈4．0m^3／（m^2·d），适宜的回流比为2．0，布水周期为20min。The combined process of trickling filter and constructed wetland was developed to meet the requirements of higher efficiency, lower energy consumption, easier management in rural domestic wastewater treatment, and an experimental study was conducted to investigate the optimal operation parameters of trickling filter and the measures for improving phosphorus and nitrogen removal. The results show that it is feasible to use this process in treating rural domestic wastewater, and the average removal rates of COD, NH4^＋ - N, TN and TP are 73.6%, 89.5%, 61.7% and 78.4% respectively. The operation cost is 0.23 Yuan/m^3. The volume loading, hydraulic loading, reflux ratio and sprinkling period of the trickling filter should be controlled at 0.3 to 0.5 kgCOD/（ m^3·d） , less than 4.0 m^3/（m^2·d）, 2.0 and 20 min respectively.

关 键 词：滴滤池 人工湿地 农村生活污水 

分 类 号：X703[环境科学与工程—环境工程]