长三角城市群雨水径流水质污染特征与控制技术分析  

Analysis of Rainwater Runoff Pollution Feature and Pollution Control Technologies of Yangtze River Delta Urban Agglomerations

作　　者：佘步存 杜园园 SHE Bucun;DU Yuanyuan(Huaxin Design Group Co.,Ltd.,Wuxi 214072,China)

机构地区：[1]华昕设计集团有限公司,江苏无锡214072

出　　处：《净水技术》2025年第4期37-48,共12页Water Purification Technology

基　　金：江苏省建设系统科技项目(2023ZD098);无锡市科协软科学研究课题(KX-24-C041);华昕设计集团有限公司重点研发项目(RD-202204,RD-Z202402);无锡华光环保能源集团股份有限公司创新突破项目(RD-202204-7)。

摘　　要：【目的】长三角城市群降雨径流引起的水环境污染问题复杂且日益严峻。【方法】研究整合试验和文献数据,系统梳理了长三角城市典型下垫面、功能区的雨水径流污染特征,并量化了指标间的相关性。文章构建的数据集覆盖长三角地区18个城市,包括道路、屋面和绿地3类下垫面,以及交通区、居民区、商业区、工业区和文教区5类城市功能区。【结果】化学需氧量(CODCr)、悬浮物质(SS)和总磷(TP)是道路雨水径流污染控制的重点,而TN和氨氮、CODCr和SS则分别是屋面、绿地径流中需控制的污染指标。Pearson相关分析表明,SS与CODCr、CODCr与TP在道路下垫面上高度正相关(r>0.5),SS与CODCr、氨氮与TN在屋面径流中高度正相关,氨氮与CODCr、TP在绿地下垫面中高度正相关,这为雨水径流多项污染的协同削减指明了方向,并分析了雨水径流污染的控制技术以及未来发展趋势。【结论】研究填补了长三角城市群雨水径流污染特征系统研究的空白,为长三角城市群面源污染协同治理提供数据基础和科学依据。[Objective]The water pollution caused by rainfall runoff in the Yangtze River Delta urban agglomeration is complex and increasingly severe.[Methods]This study integrates experimental and literature data to systematically explore the characteristics and relationships of rainwater runoff pollution in typical underlying surfaces and functional areas of Yangtze River Delta cities.The dataset cover 18 cities in the Yangtze River Delta region,including three types of underlying surfaces(roads,roofs,and green spaces),five types of urban functional areas(transportation,residential,commercial,industrial,and cultural and educational areas).[Results]The result indicate that chemical oxygen demand(CODCr),suspend solids(SS),and total phosphorus(TP)are the key indices for controlling road runoff pollution,while TN and ammonia nitrogen,CODCr and SS are the indices that need to be controlled in roof and green space runoff,respectively.Pearson correlation analysis shows that CODCr is positively correlated with SS and TP on the road(r>0.5).SS is positively correlated with CODCr,ammonia nitrogen is positively correlated with TN on the roof.And ammonia nitrogen is positively correlated with CODCr and TP on the green surface.This study provides a scientific basis for the coordinated reduction of multiple pollutants in rainfall runoff control and analyzes the technologies and future development trends.[Conclusion]This study fills the gap in the systematic research on the characteristics of rainfall runoff pollution in the Yangtze River Delta urban agglomeration,and provides data and scientific basis for the collaborative treatment of non-point source pollution.

关 键 词：降雨径流污染 下垫面 城市化 污染控制 城市功能区 

分 类 号：X52[环境科学与工程—环境工程]