表流人工湿地间歇运行对水体指标的影响分析  

Influences on Water Properties of Intermittent Operation of Constructed Surface Flow Wetland

作　　者：晋波燕 柳月婷 王子龙[1] 沙洪利 吉利娜[1] 田炜 JIN Bo-yan;LIU Yue-ting;WANG Zi-long;SHA Hong-li;JI Li-na;TIAN Wei(Beijing North Canal Manage Office,Beijing 101100,China;Beijing Water Conservancy and Hydropower School,Beijing 100024,China)

机构地区：[1]北京市北运河管理处,北京101100 [2]北京水利水电学校,北京100024

出　　处：《湿地科学与管理》2022年第5期19-23,共5页Wetland Science & Management

基　　金：水体污染控制与治理国家科技重大专项课题(2017ZX07103-004)。

摘　　要：针对北运河五河交汇处微污染水体,2021年4—12月北关人工湿地开展间歇运行(8 h)与持续运行的处理效果对比研究,现场试验采用1.45 m^(3)/(m^(2)·d)的表面水力负荷。结果表明:间歇运行方式对总磷(TP)和总氮(TN)的去除效果明显,平均去除率分别达23.47%、25.70%,与持续运行方式相比去除率分别提高了14.63%、18.87%;间歇运行对化学需氧量(COD_(cr))和氨氮(NH_(3)-N)的去除效果与持续运行方式差别不大,且两种运行方式下,表流湿地对COD_(cr)和NH_(3)-N的去除率均较低;间歇运行不利于叶绿素a的去除,平均去除率为-79.18%。生态健康评价结果显示,间歇运行效果略高于持续运行效果。For slightly polluted water at the intersection of the five rivers in the Northern reaches of Canal,the Beiguan constructed wetland was selected for the comparative study on the treatment effect of intermittent operation(8 hours)and continuous operation from April to December 2021.The surface hydraulic load of 1.45 m^(3)/(m^(2)•d)was used in the field test.Results showed that the intermittent operation mode had obvious removal effect on total phosphorus(TP)and total nitrogen(TN),the average removal rate reached 23.47%and 25.70%respectively,and the removal rate increased by 14.63%and 18.87%respectively compared with the continuous operation mode.The removal effect of intermittent operation on COD_(cr) and NH_(3)-N is not different from that of the continuous operation,and the removal rate of surface flow wetland on COD_(cr) and NH_(3)-N is lower under both operation modes.The intermittent operation is not conducive to the removal of chlorophyll a,with an average removal rate of-79.18%.The evaluation of ecological health showed that the effect of the intermittent operation is slightly higher than that of the continuous operation.

关 键 词：表流人工湿地 间歇运行 持续运行 变化分析 

分 类 号：X703[环境科学与工程—环境工程]