水利学报2025，Vol.56Issue(2)：181-192,12.DOI:10.13243/j.cnki.slxb.20240203
典型环状河网突发水污染溯源研究
Methodology for identifying the source of sudden water pollution in typical looped river network
摘要
Abstract
With the rapid urbanization process,the problem of sudden water pollution in China is becoming in-creasingly prominent.After pollution occurs,the primary task is to identify the source of pollution for emergency disposal.Nowadays,there are many studies on the sudden water pollution source identification,but they are gen-erally not applicable to the looped river network cases.The reason for this issue is that the problem of identifying pollution source in a looped river network is severely ill-posed,involving complex calculations and being rather dif-ficult to solve.Therefore,this research proposes a creative method for identifying the source of sudden water pollu-tion in a looped river network,which includes:(1)the task of identifying pollution source is divided into two steps:the first step involves identifying the river with a pollution source,and the second step involves identifying detailed information about the pollution;(2)at the first step,the BP neural network algorithm is used to calculate the specific river where a pollution source is located,and the flow and water quality models are further used to cal-culate the concentration of pollutants at the outlet of the identified river when observations are not available in this river;(3)at the second step,after the river identified,the detailed information of pollution source including the release position,the release time,and the release mass,can be further estimated using the backward location probability density method;(4)the proposed method has been applied to a typical looped river network case,and the results show that this method can effectively identify the source of sudden water pollution from a looped river net-work.This research achievement can serve for the emergency response,responsibility management,and pre-e-mergency planning of sudden water pollution in the river network areas,with great practical significance and broad application prospects.关键词
环状河网/污染溯源/反问题/突发水污染/机理-数据Key words
looped river network/pollution source identification/inverse problem/sudden water pollution/mechanism-data分类
资源环境引用本文复制引用
王家彪,赵铜铁钢,蔡思宇,赵建世,陈晓宏,王浩..典型环状河网突发水污染溯源研究[J].水利学报,2025,56(2):181-192,12.基金项目
国家重点研发计划项目(2023YFC3209403-03) （2023YFC3209403-03）
国家自然科学基金青年基金项目(52109047) （52109047）
