不同进水浓度对组合式垂直流人工湿地污水处理效果的影响

Effect of Different Influent Concentrations on Combined Vertical Flow Constructed Wetland Sewage Treatment

本文研究了不同进水方式对组合式垂直流人工湿地处理生活污水的影响。试验期间,总水力负荷一直保持不变,维持在100 mm/d,在第二级进水中,将总进水浓度调为0%、10%、20%和30%,用于湿地第二级的进水。笔者重点分析了不同进水浓度对化学需氧量(COD)、总氮(TN)、总磷(TP)的影响和去除率。结果表明,COD和TP的去除率不受进水浓度的影响,其对TN的去除效果明显。

In this paper,the effects of different influent modes on the treatment of domestic sewage by combined vertical flow constructed wetland are studied.During the test,the total hydraulic load remained constant at 100 mm/d.In the second stage of the influent,the total influent concentration was adjusted to 0%,10%,20% and 30%,which was used for the influent of the second stage of the wetland.The author focused on the effects of different influent concentrations on chemical oxygen demand (COD),total nitrogen (TN),total phosphorus (TP) and removal rate.The results show that the removal rate of COD and TP is not affected by the influent concentration,and its removal effect on TN is obvious.