旁路生物稳定塘系统净化滇池入湖河道污水

Research on Purification of Polluted Inflow Rivers into Dianchi Lake by Bypass Biological Stabilization Pond System

为削减滇池的入湖污染负荷,基于旁路净化的思路设计并构建了包括水生植物塘和养殖塘在内的生物稳定塘系统,考察了对氮、磷的去除效果。结果表明,系统对TN、TP、NO3--N和NH3-N的平均去除率分别为25.3%、50.6%、38.4%和35.6%,在改善水质的同时还具有一定的生态景观效益,可为其他水体的净化提供示范。

In order to reduce inflow pollution load into Dianchi Lake, a biological stabilization pond system including a hydrophytes pond and an aquaculture pond was designed and built based on the idea of bypass purification. The removal efficiencies of nitrogen and phosphorus were investigated. The results show that the average removal rates of TN, TP, NO3^- -N and NH3 -N by the whole system are 25.3%, 50.6% , 38.4% and 35.6% respectively. The system improves water quality and contributes to the ecological landscape, which provides a demonstration for other water purification projects.