潮汐流人工湿地床污水处理效果试验研究  

Wastewater purification experiment study of a lab-scale tidal flow constructed wetland

作　　者：张东晓[1] 吴树彪[1] 宋玉丽[1] 柳清青[1] 庞昌乐[2] 董仁杰[2] 

机构地区：[1]中国农业大学水利与土木工程学院,北京100083 [2]中国农业大学工学院,北京100083

出　　处：《中国农业大学学报》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)

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

关 键 词：人工湿地床 潮汐流 去除负荷 复氧能力 硝化作用 

分 类 号：X703.1[环境科学与工程—环境工程]