南水北调东线人工湿地净化效果研究

Research on the Purification Effectiveness of Polluted Water in Artificial Wetland of the Eastern Route of South-to-North Water Diversion Project

基于对南四湖水体污染情况的调查和新薛河入湖口人工湿地水质净化工程运行监测数据,运用综合评价法,建立综合评价指标体系,构建数学模型,对南四湖水质和污染水体人工湿地净化效果进行了评价。研究结果认为人工湿地的建设对于污染水体净化起到了十分重要的作用。检测结果证明,新薛河入湖口水质在Ⅲ类水与Ⅳ类水之间波动,未完全达到南水北调工程的Ⅲ类水水质要求。研究项目对农业面源污染控制和南四湖水质污染的治理具有重要参考价值。

Based on water pollution situation investigation and measured water quality data in the artificial wetland at the inlet of the Xinxue River into Nansi Lake,the mathematical model and comprehensive evaluation index are established by using a comprehensive evaluation method.With the model and evaluation indicators,wastewater purification effectiveness is assessed for water quality of Nansi Lake.The study shows that the water quality at the inlet of the Xinxue River fluctuate between Class III and Class IV.There exists a gap between Class III requirement of South-North Diversion Project and the quality of the measured water.It is true that the present findings should play an important reference role in harnessing water pollution of Nansi Lake.