基于砂箱实验及数学模拟的地下水循环井修复研究进展  

Advances in studies about the groundwater pollution remediation through thegroundwater circulation well using sandbox experiments and simulationmethods

作　　者：胡杏璐 刘传琨 罗彬 马蒙 王佳波 胡玥 HU Xinglu;LIU Chuankun;LUO Bin;MA Meng;WANG Jiabo;HU Yue(State Key Laboratory of Geohazard Prevention and Geoenvironment Protection,Chengdu University of Technology,Chengdu 610059,China;College of Environment and Civil Engineering,Chengdu University of Technology,Chengdu 610059,China;Sichuan Academy of Environmental Policy and Planning,Chengdu 610000,China;China Institute of Water Resources and Hydropower Research,Beijing 100048,China)

机构地区：[1]成都理工大学地质灾害防治与地质环境保护国家重点实验室,成都610059 [2]成都理工大学环境与土木工程学院,成都610059 [3]四川省环境政策研究与规划院,成都610000 [4]中国水利水电科学研究院,北京100048

出　　处：《环境工程学报》2024年第4期1083-1095,共13页Chinese Journal of Environmental Engineering

基　　金：国家重点研发计划资助项目(2020YFC1808300);国家自然科学基金资助项目(42107096);四川省重点研发计划资助项目(2021YFQ0067)。

摘　　要：针对当前严峻的地下水污染问题,地下水循环井(groundwater circulation well,GCW)作为一种地下水原位修复技术,可在井周形成局部水力环流并将污染物捕获至井内进行处理,弥补了异位修复技术环境扰动大、成本较高等缺陷,可针对非水相有机污染物实现较好的修复效果。该技术可与多项修复技术相结合,例如曝气、吹脱、表面活性剂、生物修复、电化学修复和化学氧化修复等,以达到强化修复地下水污染的目的。相关研究以砂箱实验和数学模拟两类研究方法为主,基于这两类方法,详细介绍了地下水循环井技术的发展过程与研究进展,重点梳理了GCW与其它修复技术联合作用下的修复机理,总结了不同环境及工况条件对修复效果的影响。针对我国GCW技术研究现状,今后可考虑与原位热修复技术结合,进一步拓宽理论研究的范围,并积极开展中试试验,以期为该技术在污染场地的实际应用提供参考。In terms of the current serious situation of groundwater pollution,the groundwater circulation well(GCW)is a powerful in-situ remediation method,which can trigger a local hydraulic circulation around the well and capture contaminants into the well for subsequent treatments.The GCW covers the shortages of ex-situ remediation technologies such as large environmental disturbances and high costs,and can obtain better remediation performances for non-aqueous organic pollutants.Other remediation techniques like the aeration,blow-off,surfactant,bioremediation,electrochemical remediation,and chemical oxidation were often coupled with the GCW to enhance performances of removing contaminants in groundwater.Researches about the GCW were mainly based on two kinds of methods,the sandbox experiments and simulation methods.According to these two kinds of approaches,the development and research progress of the GCW were described in detail.The mechanism of the GCW coupled with other remediation technologies were emphasized.The influences of different environmental and working conditions on the remediation performance of GCW were also summarized.Considering the current situation of the GCW associated researches in China,coupling with in-situ thermal remediation technologies is promising.Likewise,pilot tests should be conducted with the aim of providing references for the practical application of the GCW in contaminated sites.

关 键 词：地下水循环井技术 砂箱实验 数学模拟 解析法 数值模型 

分 类 号：X523[环境科学与工程—环境工程]