水文地质条件下非点源污染负荷控制方法研究  

Control of Non-point Source Pollution Load under Hydrogeological Conditions

作　　者：罗清虎 宋明琦 马晓霞 Luo Qinghu;Song Mingqi;Ma Xiaoxia(Qinghai Hydrological and Water Resources Measurement and Reporting Center,Xining 810300,China)

机构地区：[1]青海省水文水资源测报中心,青海西宁810300

出　　处：《环境科学与管理》2023年第10期86-90,共5页Environmental Science and Management

摘　　要：研究水文地质条件下非点源污染负荷控制方法。参考水文地质条件分类流域水文过程,在横向和垂直两个方向上分析流域水文过程,以一体化动态产流机制进行分层。简化流域内水文数据分割非点源信息,采用加权浓度法计算非点源污染平均浓度,根据径流量权值确定污染负荷。通过栅格单元构建非点源污染模型,采用运动学理论建立节点和面源控制方程,在微分控制模块中控制非点源流域内的污染物负荷。实验以某市河流为测试对象,分别对不同暴雨时段内的污染量负荷进行控制,在文章方法应用下能够将负荷从70 kg调控至45 kg。The load control method of non-point source pollution under hydrogeological conditions is studied.Referring to hydrogeological conditions to classify watershed hydrological processes,this paper analyzed watershed hydrological processes in both horizontal and vertical directions,and stratify them using an integrated dynamic runoff generation mechanism.The hydrological data in the basin to segment the non-point source information is simplified by using the weighted concentration method to calculate the average concentration of non-point source pollution.It determined the pollution load according to the runoff weight value.The model of non-point source pollution is constructed through grid cells,and the node and non-point source control equations are established using the Kinematics theory.The pollutant load in the non-point source watershed is controlled in the differential control module.The experiment takes a city river as the test object to control the pollution load in different rainstorm periods respectively.Under the application of this method,the load can be adjusted from 70 kg to 45 kg.

关 键 词：水文地质条件 非点源污染 负荷控制 污染物类型 

分 类 号：X522[环境科学与工程—环境工程]