太滆运河沿程水质变化及原因解析

The Water Quality Changes and Cause Analysis of Taige Canal

本文以太滆运河为对象,研究其沿程水质变化,并进行成因解析。上游红湖大桥和下游百渎港桥为地表Ⅳ类,中间良久大桥至分水东桥段水质为Ⅴ类。2011~2014年太滆运河水质呈恶化趋势,2015年水质有所改善。太滆运河-百渎港沿程各断面主要污染因子为NH3-N和TP。各监测断面污染物浓度峰值一般出现在枯水期,谷值一般出现在丰水期。

Taking Taige canal as the object, we researched the water quality changes along the canal, and analyzed its cause. The upper reaches of the Honghu bridge section and downstream of the Baidu port bridge section are water surface type IV, the middle reaches of the Liangjiu bridge section and the Fenshui east bridge section are water surface type V. The water quality of Taige canal was deteriorating from 2011 to 2014, and the water quality has improved in 2015. The main pollution factors of＇sections along Taige canal to Baidu port are NH3-N and TP. The peak value of pollutant concentration in the monitoring section usually appears in the dry season, and the valley value generally appears in the high water period.