任伟 杨李富 苏振尧 刘卫星 李敏 吴梦瑶

摘 要：本文对贾鲁河郑州段水质情况展开研究，共设置调查断面7个，起点位于中原区化工路桥，终点位于中牟县李店村，研究共持续约30 d，期间每7 d采样分析一次。结果表明，贾鲁河郑州段的水环境承载力指数为92.86%，评价结果为未超载;贾鲁河郑州段水质呈现出从上游至下游逐步恶化的趋势，与起点处相比，电导率、总磷、高锰酸盐指数和总氮的浓度最高分别上升了1.61倍、1.17倍、0.83倍和3.30倍;利用综合水质指数法对监测结果进行分析，污染程度加重了66.58%。经过对污染物进行溯源分析发现，pH和溶解氧的污染主要来自水处理药剂的不合理使用，电导率、总磷、总氮的污染主要来自污水处理厂排放的中水，氨氮的污染主要来自未经处理的生活污水。

关键词：贾鲁河;承载力;污染溯源;可视化

中图分类号：X52     文献标识码：A     文章编号：1003-5168（2021）36-0132-05

Water Environment Carrying Capacity Evaluation of Jialu River（Zhengzhou Section）and Research on Pollution Source Traceability

REN Wei1    YANG Lifu2    SU Zhenyao1    LIU Weixing1    LI Min1    WU Mengyao1

（1.Henan Institute of Science and Technology Development Strategy，Zhengzhou Henan 450000;

2.China Building Materials Test & Certification Group Beijing Tianyu Co.，Ltd.，Zhengzhou Henan 450100）

Abstract：This paper mainly studies the water quality of the Zhengzhou section of the Jialu River.A total of 7 survey sections are set up.The starting point is located at Huagong road in Zhongyuan District，and the ending point is located at Lidian Village，Zhongmou County.The results show that the water environmental carrying capacity index of the Zhengzhou section of the Jialu River is 92.86%，and the evaluation result is not overloaded;the water quality of the Zhengzhou section of the Jialu River shows a trend of gradual deterioration from upstream to downstream.Compared with the starting point，the conductivity，total phosphorus，and high the highest concentration of manganate index and total nitrogen increased by 1.61 times，1.17 times，0.83 times，and 3.30 times respectively;the comprehensive water quality index method was used to analyze the survey results，and the pollution degree increased by 66.58%，and the pH value and dissolved oxygen pollution Mainly comes from the unreasonable use of chemicals.The pollution of conductivity，total phosphorus and total nitrogen mainly comes from the reclaimed water discharged from the sewage treatment plant，and the pollution of ammonia nitrogen mainly comes from untreated domestic sewage.

Keywords：Jialu River;carrying capacity;pollution traceability;visualization

1 研究區概况

贾鲁河是河南省境内除黄河以外最长、流域面积最广的河流。河道起点为新密市尖山管委会神仙洞村，终点为中牟县韩寺镇胡辛庄村，郑州段干流全长120.83 km，流域面积2 750 km2。贾鲁河包含支流12条，分别为贾峪河、九娘娘庙河、索河、须水河、索须河、魏河、徐北沟、石沟、七里河、小清河、堤里小清河和丈八沟[1]。据不完全统计，贾鲁河郑州段共有大小污水处理厂11座，流域面积仅占淮河流域面积的1/46，但贾鲁河的污染负荷却占淮河流域总负荷的1/9，是淮河流域污染最严重的支流之一[2]。

陈停对贾鲁河底泥中氮磷的释放规律进行了研究，研究表明：溶解氧、温度和pH影响氮磷的释放。……