香根草人工湿地处理生活污水的试验研究

Study on sewage treated by vetiveria zizanioides constructed wetlands

通过建立香根草人工湿地系统,研究该系统对生活污水的COD、TP、TN的处理效果以及系统的耐污性。在水力停留时间(HRT)为6h的条件下,COD、TP、TN的去除率分别为63.5%、88.3%、72.4%。研究表明,香根草人工湿地系统对城镇生活污水具有较好的净化效果,且系统在该试验条件下耐污性良好。

A Vetiveria zizanioides Constructed Wetlands was built to research the system＇s resistance to soiling and the removal rate of COD, TP, TN in this system. The removal rate of COD, TP and TN was 63.5%、88.3% and 72.4% respectively by HRT 6h. The research resulted that the undercurrent wetland system had the better purificate effect to the city sanitary sewage and this system has strong resistance to soiling.