摘要
研究新型潮汐流人工湿地床对污水处理的效果。试验结果表明:在淹没排空比为3h∶3h和回流比1∶1的条件下,该潮汐流人工湿地床对COD、BOD5和氨氮(NH4+-N)的去除率分别为80.2%、79.0%和61.8%,去除负荷分别达到283.2、179.7和30.1g/(m2.d),高于其他类型人工湿地;对总磷(TP)的去除率为28.7%,去除负荷为2.9g/(m2.d)。潮汐流人工湿地床总供氧能够满足有机物及氨氮的氧化需氧量。
A lab-scale tidal flow CW was studied to discuss the performance under the operation conditions.When the reflux ratio was 1∶1 and full of water to empty was 3 h∶3 h,the results showed that COD,BOD5 and ammonium removal efficiencies were 80.2%,79.0% and 61.8%,at loadings of 283.2,179.7 and 30.1 g/（m2·d） respectively,which were all higher than those of other types of CWs.The removal efficiency and removal loading of TP were 28.7% and 2.9 g/（m2·d）.The oxygen supply could meet the need of oxygen in the tidal flow constructed wetland through the analysis of the oxygen transfers
出处
《中国农业大学学报》
CAS
CSCD
北大核心
2011年第6期110-116,共7页
Journal of China Agricultural University
基金
科技部农业科技成果转化资金项目(2007GB23600460)
关键词
人工湿地床
潮汐流
去除负荷
复氧能力
硝化作用
constructed wetland
tidal flow
removal Ioading
reoxygenation ability
nitrification
