摘要
对位于无锡太湖新城、已实施水质生态保障示范工程的尚贤河进行了为期1a的水质变化监测，分析pH、电导率等11个因子的变化情况。监测指标数据显示，在工程中后期，水体营养物质含量有所降低并基本保持稳定。此外，选取溶解氧、氨氮、总磷、总氮、高锰酸盐指数5个参数，采用灰色聚类法评价四季的水质状况。评价数据显示，尚贤河水质在秋、冬、春季为III类水。夏季为V类水；剔除总氮因子后评价，则夏季为IV类水，其他三季水质不变。说明尚贤河总氮污染较严重，需进一步提高除污技术。除该因子外，生态保障技术对其他水质污染物去除效果较好，总体运行效果良好。
Shangxian River situated in Taihu New Town of Wuxi City is a typical artificial landscaping waterway where a demonstration project for aquatic ecological security has been implemented. One year round water quality monitoring to analyse the changes in eleven factors such as pH value, conductivity, and etc. showed that the nutrient contents in the water body were somewhat reduced whilst basically keeping stable in the later stage of the project. At the same time, five parameters including dissolved oxygen, ammonia nitrogen, total phosphorus, total nitrogen and permanganate value were chosen for the evaluation of water quality of Shangxian River in four seasons by using the grey clustering method. It has shown that its water quality was at Category Ill in the autumn, winter and spring whilst being at Category V in the summer （but the latter one could be at Category IV if total nitrogen was excluded in the evaluation）. As pollution of total nitrogen in the water body of Shangxian River was rather serious, technologies for clean-up of the river water should be further developed. It indicated that the ecological security techniques, however, were performing pretty well to deal with the aquatic pollutants other than total nitrogen.
出处
《上海环境科学》
CAS
2013年第5期210-215,220,共7页
Shanghai Environmental Sciences
基金
“十一五”国家重大水专项项目,编号:2009ZX07101009-001
关键词
快速城市化新区
河流
降水径流面源污染
灰色聚类法
Rapidly urbanised new area Waterway Non-point source pollution of rainfall runoff Grey clustering method
