摘要
对马料河复合人工湿地的除磷效果进行分析结果表明,整个湿地系统的TP及PO43-去除率约为40%,从各工艺段TP去除率来看,氧化塘湿地最高,表面流湿地次之,潜流湿地最差。PO43-占TP的浓度构成比例从进水的48.3%上升至出水的53.9%,说明湿地系统对磷的去除主要是通过对不溶性磷的吸附和沉积作用,植物、藻类等对无机可溶性磷酸盐的吸收作用并不明显。湿地系统的最佳水力负荷为0.1～0.4m3/(m2.d),TP最佳污染负荷为0.1～0.3mg/L。
It was analyzed the phosphorus removal effect of maliaohe composite constructed wetland.The result showed that the removal rate of TP and PO_4 3-in the whole wetland was about 40%.TP removal rate of an oxidation pond wetland was the highest,and that of an underflow wetland was the lowest.For the TP in the influent and effluent,PO_4 3-took 48.3% and 53.9% respectively.The optimal hydraulic load and optimal TP pollution load of the wetland system were 0.1~0.4m3/(m2·d)and 0.1~0.3 mg/L.
出处
《环境工程》
CAS
CSCD
北大核心
2009年第S1期566-569,442,共5页
Environmental Engineering
关键词
人工湿地
含磷物质
去除效果
constructed wetland
phosphorus-bearing matter
removal effect
