基于地下水数值模型的未知污染源预测

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中图分类号：X703 文献标识码：A 文章编号：1008-9500(2025)06-0213-08

DOI: 10.3969/j.issn.1008-9500.2025.06.063

Prediction of Unknown Pollution Sources Based on Groundwater Numerical Model

LIURongqin,WANGXianghui (Shanghai SUS Environmental Remediation Company Limited, Shanghai 2O17O3,China)

Abstract:Theprimarytask inremediating contaminated site groundwater is to pinpoint polution source locations and achievecompleteremoval.Withtheintroductionofthe“Dual Carbon”goals,economicallyandaccuratelydetermining the locationand concentration ofpollution sources has becomeparamount.Groundwater solute transport simulation,valued foritseectiveness,flexiilityandost-ciency,asmergedasaciticalmethodologyigoundwateresearchUsing ahigh-precision machining factory in Guangdong provinceasacase study,Perchloroethylene (PCE)was selectedas the simulation factor.Visual MODFLOW software was employed for numerical modeling and parameter calibration of the site.Simulationresults indicated hidden point source contamination near monitoring welsMW-B7,W3,and W9,with contamination intensitiesof5,20,and5Omg/L,respectively.Tovalidatemodelreliability,fieldsampling monitoring compared simulation outputs with actual monitoring data.Results demonstrated high consistency,with the model sucessfullypredicting contaminationleakage pathwaysnear the threewells—findings thataligned withthesite'shistorical productionrecords.This successful predictionof hidden polution sources establishesavaluable reference forsimilar remediation projects.

Keywords:groundwater;numerical simulation;unknown pollution source

在污染场地地下水治理中，若无法识别并准确定位隐伏污染源，会影响后续修复，导致修复成本增加[1-2]。（剩余11348字）