摘要：

采用水平潜流人工湿地与往复流潜流人工湿地对微污染水源水进行预处理试验,以提高饮用水源水质,减轻给水厂负荷。试验是在济南引黄水库玉清湖水库进行的,经过近1a的试验,结果表明:在水力负荷0.2m³/(m².d)运行条件下,水平潜流人工湿地与往复式人工湿地都有较好的处理效果。水平潜流人工湿地COD、TN、NH4+-N、TP的平均去除率分别达到50.14%、53. 81%、48.68%、50.83%;往复流潜流人工湿地对COD、TN、NH4+-N、TP的平均去除率分别达到51. 35%、54.95%、49.83%、51. 87%。同时,通过对湿地中的植物与基质研究表明:人工湿地对污染物的处理过程是物理、化学和生物及其协同作用。

关键词: 潜流人工湿地, 微污染水源, 预处理

Abstract:

In order to improve the water quality of drinking water source， and mitigate the load of drinking water treatment plants， micro-polluted raw water has been pretreated by horizontal subsurface flow artificial wetland and lateral subsurface flow artificial wetland during the one-year field experiment. Experiments have been conducted in Jinan by introducing the water from Yuqing Lake Reservoir and the water coming from Yellow River. The results show that when the hydraulic loading is 0.2 m³/（m²·d）， both of the two kinds of wetland have quite good treatment effect. The average removal rates of chemical oxygen demand （COD）， total nitrogen （TN）， ammonium nitrogen（NH₄⁺-N） and total phosphorus （TP） in the horizental subsurface flow artificial wetland are 50.14%， 53. 81%， 48.68% and 50.83% respectively， and the removal rates of COD， TN， NH₄⁺-N and TP in the lateral subsurface flow artificial wetland are 51. 35%， 54.95%， 49.83% and 51. 87% respectively. The study on plants and matrices in the artificial wetland indicates that the process of treating micro-pollutants by artificial wetland is a coordinate action of physics， chemistry， and biology.

Key words: subsurface flow artifical wetland, micro-polluted water resource, pretreatment

中图分类号: 

• X703. 1