石亭江流域水环境质量变化趋势及治理措施研究

Study on the Change Trend and Control Measures of Water Environment Quality in Shiting River Basin

为揭示石亭江流域水质变化趋势,以2015~2022年石亭江流域6个断面监测数据为基础,对石亭江流域水质变化趋势、主要污染物时空分布特征进行了系统分析。结果显示:2015~2022年期间,石亭江水质趋于好转,2018年消除了Ⅴ类及以下水质,到2022年6个监测断面水质均达到或优于Ⅲ类水质,流域水质有明显改善。石亭江水质变好的原因在于,德阳市采取行之有效的手段控制污染物排放、加强石亭江流域两岸磷化工企业废水整治、督促企业规范排污行为等系列政策的出台及配套措施的有效实施。

In order to reveal the changing trend of water quality in Shiting River Basin,based on the monitoring data of six sections in Shiting River Basin from 2015 to 2022,the changing trend of water quality and the temporal and spatial distribution characteristics of main pollutants in Shiting River Basin were systematically analyzed.The results showed that during 2015-2022,the water quality of Shiting River tended to improve,and in 2018,the water quality of ClassⅤand below was eliminated.By 2022,the water quality of 6 monitoring sections reached or was better than ClassⅢ,and the water quality of the basin was significantly improved.The reason for the improvement of water quality in Shiting River is that Deyang City has adopted effective measures to control the discharge of pollutants,strengthened the treatment of wastewater from phosphorus chemical enterprises on both sides of Shiting River Basin,and urged enterprises to standardize the discharge behavior.