摘要
考察了组合式分层生物滤池与潜流式人工湿地联合工艺对曹家浜村生活污水的处理效果。结果表明,当分层生物滤池的污染负荷为2.6kgCOD/(m2·d),潜流式人工湿地表面负荷为0.3m3/(m2·d)时,联合工艺对污水中各类污染物具有稳定、良好的处理效果,出水COD、NH+4-N、TN和TP平均浓度分别为68.2、8.1、12.1mg/L和0.9mg/L,均能满足GB18918—2002一级B标准;COD、NH+4-N、TN和TP去除率分别可达79.2%、62.8%、55.1%和77.1%;联合工艺在不同季节对污染物的去除效率有一定的变化,总体来说夏季去除效率最好,其次是秋季,而冬季的处理效率最差。
Performance of the combined process of biological filter and constructed wetland were studied in treating rural sewage in village CaoJiabang in Shanghai. The results showed that pollutants could be removed stably and effectively by the combined process, with the organic loading rate of biological filter of 2.6 kgCOD/（m^2·d） and the surface load of the constructed wetland of 0.3 m^3/（m^2·d）. The average concentration of COD, NH4^＋-N, TN and TP in the effluent was 68.2, 8.1, 12.1 mg/L and 0.9 mg/L with the removal efficiency of more than 79.2 %, 62.8 %, 55.1% and 77.1% respectively, meeting the standard of GB 18918-2002 Class 1 Level B. Compared with the pollutants removal efficiency in different seasons, it was observed that the trends decreased following the sequences of summer, autumn, spring and winter.
出处
《净水技术》
CAS
2009年第4期28-31,共4页
Water Purification Technology
基金
上海市科委项目(No.07dz12048)
上海市建设交通"十一五"重大科研(计划重科2008-002)
国家自然科学基金项目(No.50808120
No.50608056)
关键词
生物滤池
人工湿地
联合工艺
农村生活污水
处理效率
biological filter constructed wetland combined processes rural sewage removal rate
