降雨和生态补水对李村河污染物输运影响研究  

Study on the effects of rainfall and ecological water supplement on the pollutant transport in Licun River

作　　者：王子文 高书连 孙振水 张燕伟 张学庆[1,2] WANG Ziwen;GAO Shulian;SUN Zhenshui;ZHANG Yanwei;ZHANG Xueqing(College of Environmental Science and Engineering,Ocean University of China,Qingdao,266100,China;Key Laboratory of Marine Environment and Ecology,Ministry of Education,Qingdao,266100,China;Qingdao Water Development Service Center,Qingdao,266100,China;Engineering construction and safety supervision division of Qingdao Water Administration Bureau,Qingdao,266100,China)

机构地区：[1]中国海洋大学环境科学与工程学院,山东青岛266100 [2]海洋环境与生态教育部重点实验室,山东青岛266100 [3]青岛市水务事业发展服务中心,山东青岛266100 [4]青岛市水务管理局工程建设和安全监督处,山东青岛266100

出　　处：《海洋湖沼通报》2022年第3期87-92,共6页Transactions of Oceanology and Limnology

基　　金：国家重点研发计划课题(2018YFC1407601)。

摘　　要：我国北方河流多为季节性河流,水质水量受降雨径流影响显著。近年来,许多河流实施了生态补水措施,研究降雨和生态补水情形下河流的水质水量变化规律,对水资源利用和河流生态修复具有重要的意义。基于城市暴雨径流管理模型(SWMM)和环境流体动力学模型(EFDC),本文研究了青岛市李村河及其流域的水质水量变化规律。结果表明:河流下游,大雨期间COD浓度达到130 mg/L,小雨期间COD浓度达70 mg/L;降雨过程后期,雨水对河流污染有一定的净化作用;雨水和生态补水的汇入导致河流的水体交换加快,物质输运时间缩短,大雨情形下的物质输运时间比小雨情形的缩短约一天。Due to the seasonal characteristics of rivers in northern China,the water quality and quantity in rivers are significantly affected by rainfall runoff.In resent years,many rivers implement ecological water supplement measures.It is of great significance for water resources utilization and river ecological restoration to study the variation law of river water quality and quantity under the condition of rainfall and ecological supplement.In this paper,based on the Urban Storm Runoff Management Model(SWMM) and the Fluid Dynamics Code(EFDC) model,the water quality and quantity in Licun River and in its basin were simulated.The main results are as follows:(1) Taking the Chemical Oxygen Demand(COD) as an example,the COD concentration reaches 130 mg/L during heavy rain and 70 mg/L during light rain in the downstream of the river.(2) The rainwater in the later stage of rainfall has a certain purification effect on the pollution in the river.(3) The inflow of rainwater and supplemented water lead to the acceleration of water exchange and the shortening of material transportation time.The material transport time under the condition of heavy rain is about one day shorter than that under the condition of light rain.

关 键 词：李村河 降雨径流 生态补水 水龄 

分 类 号：X522[环境科学与工程—环境工程]