复合垂直流模块化人工湿地关键技术研究

Research on Key Technology of Composite Vertical-flow Modular Constructed Wetland

为提升人工湿地的推广应用价值,建设生态、和谐、友好的城市空间,设计了复合垂直流模块化人工湿地模型,并通过试验监测氨氮、总氮、总磷、COD、DO等指标数据。试验结果表明,该人工湿地模型在污染负荷较低的情况下,氨氮去除率可达89%~96%,总氮去除效率达到54%~75%,溶解氧浓度较高,但因所用填料吸附性较差,总磷去除效果不佳。

In order to promote the application value of constructed wetland and build an ecological, harmonious and friendly urban space, a composite vertical-flow modular constructed wetland model was designed and researched, and the index data of ammonia nitrogen, total nitrogen, total phosphorus, COD and DO were monitored through experiments. The experiment results showed that under the low pollution load, the ammonia nitrogen removal rate and total nitrogen removal efficiency of the constructed wetland model can reach 89%~96% and 54%~75%, respectively. The dissolved oxygen concentration is high, but the total phosphorus removal effect is not good because of the filler poor adsorbability.