Abstract:

The functions of recycled water reuse，lake water purification and rain water utilization have been compositely realized by the vertical flow constructed wetland system. The technological flow and design parameters of the system are introduced and the water quality after stable operation is detected and analyzed. The results show that the total removing rates of COD，BOD₅，TP and NH₃-N of the wastewater by using the composite vertical flow constructed wetland system are 86.5%，95.3%，89.7% and 87.5%， respectively. The total removing rates of COD，BOD₅，TP and NH₃-N of circulating purification lake water by using the vertical flow constructed wetland system are 49.1%，53.2%， 50% and 60.4%. The removing rates of main pollutants by using vertical flow constructed wetland are above 50%.

Key words: vertical flow constructed wetlands, sewage treatment, lake water circulating treatment

摘要：

采用垂直流人工湿地系统综合实现了住宅产业化基地的中水回用、湖水循环净化和雨水利用功能．介绍了系统的工艺流程和设计参数，并对系统稳定运行后的水质进行监测分析．结果表明，处理污水的复合垂直流人工湿地系统对COD、BOD₅、TP、NH3-N的总去除率分别为86.5%、95.3%、89.7%、87.5%;循环净化湖水的垂直流人工湿地系统对COD、BOD₅、TP、NH₃-N的总去除率分别为49.1%、53.2%、50%、60.4%．垂直流人工湿地对主要污染物的去除率在50%以上．

关键词: 垂直流人工湿地, 污水处理, 湖水循环净化

CLC Number: 

• X703