摘要
开发了一种将物理过滤和生物处理相结合的水生植物滤床 (APFB)技术 .在太湖陈东港入湖口处进行APFB处理河水的试验结果表明 ,APFB的最佳水力负荷为 4 0m3/(m2 ·d) ,此时总氮、总磷和叶绿素a的去除负荷分别为 1 3,0 2 5 g/(m2 ·d)和 1 70 μg/(m2 ·d) ,相应的去除率分别为 2 8% ,5 0 %和 73% ;总氮、总磷和叶绿素a的去除负荷随原水质量浓度的增加而增大 ;APFB的硝化作用高于反硝化作用 .研究证明APFB技术净化富营养化地表水具有高效、低成体的特点 .
Aquatic plant filter bed (APFB) is developed that combines physical filter and biological treatment. A pilot scale APFB established at the entrance of Chendong gang River into Taihu Lake was tested to treat polluted river water. Results show that the removal lo ading rates of total nitrogen (TN), total phosphorus (TP) and chlorophyll-a (Chl-a) are 1. 3, 0.25 g/(m2·d) and 170 μg/(m2·d), respectively, under the optimal hydrauli c loading rate of 4.0 m3/(m2·d), th e removal efficiencies are accordingly 28%,50% and 73%. The removal loading rat es of TN, TP and Chl-a all increase with inflow concentrations. The effect of n itrification is better than that of denitrification in APFB. This study indicates that APFB is a low cost technique with high removal rate for hyper-eutrophic surface water purifying.
出处
《东南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2004年第6期810-813,共4页
Journal of Southeast University：Natural Science Edition
基金
国家高技术研究发展计划 (863计划 )资助项目(2 0 0 2AA60 10 11 0 3 )
国家自然科学基金资助项目(5 0 3 780 14 )
江苏省自然科学基金资助项目(BK2 0 0 40 75 )
江苏省环保厅科技计划资助项目 (苏环科 2 0 0 2 2 1) .
关键词
水生植物滤床
人工湿地
河水
氮
磷
aquatic plant filter bed
construct ed wetland
river water
nitrogen
phosphorus
