场地污染地下水抽出处理系统井群加权优化方法研究  

Polluted groundwater pump and treat system optimization based on weighted optimization method on the area

作　　者：陈帆 史浙明[2] 贾永锋 臧永歌 廉新颖[1] 姜永海[1] 冉泽宇 尚长健 CHEN Fan;SHI Zheming;JIA Yongfeng;ZANG Yongge;LIAN Xinying;JIANG Yonghai;RAN Zeyu;SHANG Changjian(State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution,Chinese Research Academy of Environmental Sciences,Beijing 100012,China;School of Water Resources and Environment,China University of Geosciences(Beijing),Beijing 100083,China)

机构地区：[1]中国环境科学研究院国家环境保护地下水污染模拟与控制重点实验室,北京100012 [2]中国地质大学(北京)水资源与环境学院,北京100083

出　　处：《水文地质工程地质》2024年第1期201-214,共14页Hydrogeology & Engineering Geology

基　　金：国家重点研发计划项目(2019YFC1806202)。

摘　　要：井群布设是地下水修复抽出处理技术的关键环节之一。为提高抽出处理技术的修复效率,以某污染场为研究对象,建立非线性-动态-多目标的模拟-优化模型,以污染物去除率最高、修复达标时间最短、资金成本最低为优化目标,设定单井、双井、三井模式下不同的抽出流量,采用加权优化方法对井群布设方案进行对比计算。结果表明:整体而言单井模式修复效果较差,侧重资金成本时双井模式抽出方案修复效果整体较优,侧重达标时间成本时三井模式抽出方案修复效果整体较优;单井模式恒定流量抽出修复效果较优,多井模式下后期若适当降低抽出流量,可减少总抽出量,节省资金成本,井群动态管理可提高修复效率。研究验证了加权优化方法在井群优化应用中的灵活性和实用性,可为加权优化方法结合数值模拟方法在抽出处理技术的井群布设优化中应用提供参考。Well group layout is one of the key steps of groundwater recovery with pump and treat technology.In order to improve the remediation efficiency of pump and treat technology,a pollution field was taken as the research area,and a nonlinear-dynamic-multi-objective simulation-optimization model was established.The minimum capital cost,maximum pollutant removal rate and shortest remediation time were taken as the optimization objectives,and different extraction flows under single,double and three-well modes were set.The weighted optimization method is used to compare the well group layout scheme.The results show that:Overall,the single-well mode has poor remediation efficiency,when focusing on capital cost,the double-well pumping scheme is better overall,when focusing on the standard time,the mitsui-well pumping scheme is better overall;the single-well mode with constant flow is better than the multi-well modes,if the pumping flow is reduced appropriately in the late stage of the multi-well modes,the total amount of water pumped can be reduced and the capital cost can be saved,the dynamic management of well groups can improve the remediation efficiency.This study provides a reference for the application of weighted optimization method combined with numerical simulation method in well group layout optimization of pump and treat technology,and verifies the flexibility and practicability of weighted optimization method in well group optimization application.

关 键 词：污染地下水 抽出处理技术 加权优化方法 多目标优化 动态修复 

分 类 号：X523[环境科学与工程—环境工程]