水利水电科技进展2025，Vol.45Issue(6)：68-76,9.DOI:10.3880/j.issn.1006-7647.2025.06.010
降雨初期径流污染影响下苏州市古城区河道水质优化调度方案研究
Study on optimal scheduling scheme for river water quality in Ancient District of Suzhou City under effects of initial rainfall runoff pollution
摘要
Abstract
Taking the Xueshi River in Ancient District of Suzhou City as the research object,this study analyzed the impact of initial rainfall runoff pollution on river water quality under the existing scheduling scheme.A hydrological-hydrodynamic-water quality coupled model was constructed based on the SWMM and MIKE11 models and used to simulate the changes in river water quality under different scheduling schemes.Furthermore,optimal scheduling schemes for improving the water quality of the Xueshi River after rainfall under different rainfall conditions were proposed.The results show that the overall water quality of the Xueshi River is good,but it degrades to Grade Ⅳ during heavy rain and rainstorm events.The initial rainfall runoff pollution has the most significant impact on the river water quality during heavy rain,while its impact lasts the longest during rainstorm.The constructed coupled model achieves good simulation results for water level,flow rate and water quality at each monitoring section.Through the design of working conditions,appropriately increasing the gate flow during heavy rain and rainstorm periods can significantly reduce the peak mass concentration of NH3-N in the water body,stabilizing the water quality to Grade Ⅲ standard and thus effectively improving the river water quality after rainfall.关键词
降雨初期径流污染/水质模拟/SWMM模型/MIKE11模型/优化调度/学士河Key words
initial rainfall runoff pollution/water quality simulation/SWMM model/MIKE11 model/optimal scheduling/the Xueshi River分类
建筑与水利引用本文复制引用
肖洋,周强,许晨,钟爱成,朱丽燕,盛林华,张涛涛,张驰,姚瑶..降雨初期径流污染影响下苏州市古城区河道水质优化调度方案研究[J].水利水电科技进展,2025,45(6):68-76,9.基金项目
国家自然科学基金长江联合基金项目(U2240209) （U2240209）
国家自然科学基金面上项目(52379075) （52379075）
国家自然科学基金项目(42201132,52309102) （42201132,52309102）
苏州市水利水务科技项目(2023004) （2023004）
