武汉三角湖复合垂直流人工湿地对重金属元素的去除研究

对武汉三角湖复合垂直流人工湿地进出水口中10种重金属元素（As、Ba、Cd、Cr、Cu、Li、Mn、Ni、Pb、Zn）去除进行了周年监测（2007年2月—12月）。人工湿地进水口重金属含量较低,无超标重金属元素。三角湖人工湿地进水口重金属元素含量排序为：Ba〉Mn〉Zn〉Li〉Cu〉As〉Pb〉Cr〉Ni〉Cd。三角湖人工湿地出水口对重金属去除效果排序为：Cd〉As〉Mn〉Pb〉Zn〉Cr〉Cu〉Ba〉Li〉Ni。研究表明复合垂直流人工湿地可以有效的去除重金属,对受污染水体水质改善和水生态系统恢复具有重要意义。

The effect of integrated vertical-flow constructed wetland on removal of heavy metals in Sanjiao Lake(Wuhan)over annual time periods

This paper reported the results of monitoring 10 kinds of heavy metals in the influence and effluence of the integrated vertical-flow constructed wetland（IVCW）during Feb.2007-Dec.2007 which was constructed for improving water quality of Sanjiao lake in Wuhan,China.The results showed that the concentrations of detected heavy metals in the influent were lower than the standards of water quality and their concentration order was： BaMnZnLiCuAsPbCrNiCd.Although the concentration of heavy metals in the influent was low,the significant removal efficiency by IVCW was observed.The order of removal rate in the effluence was：CdAsMnPbZnCrCuBaLiNi.The experimental results suggested that IVCW was beneficial to improve water quality of the polluted water bodies and restore the aquatic ecosystem.