PRB组合技术在某雄黄矿地下水砷污染修复工程应用中的评价  

Evaluation of the Application of PRB Combination Technology in the Remediation Project for Arsenic Contamination in Groundwater from a Certain Realgar Mine

作　　者：屈坤杰 QU Kunjie(Shanghai Institute of Mechanical&Electrical Engineering Co.,LTD.,Shanghai 200233,China)

机构地区：[1]上海市机电设计研究院有限公司,上海200233

出　　处：《江西化工》2025年第2期81-86,共6页Jiangxi Chemical Industry

摘　　要：可渗透反应墙技术(PRB)是一种原位修复技术,具有工艺简单、效能高、成本低等特点,目前在矿山修复治理工程中的应用较少。本研究选取某雄黄矿冶炼区作为研究对象,采用PRB技术,结合防渗墙阻隔及污水抽出处理方式,对地下水砷污染进行修复治理。通过采集2022—2023年每个季度地下水样品(64个)和地表水样品(64个),分析并讨论PRB结合其它地下水修复技术在工程应用中的效果。结果表明:下游防渗墙阻隔+PRB反应墙修复+矿洞涌水收集经污水处理厂处理的方式,能有效防止地下水中砷污染地表水体、影响人体健康。且在填料使用寿命期限内,PRB反应墙对地下水砷污染的修复效果比污水处理厂(化学沉淀+吸附法)的修复效果更稳定。本研究结果为PRB技术应用于地下水砷污染修复治理工程实践提供参考依据,拓宽了其应用场景。Permeable reactive barrier(PRB)technology is an in-situ remediation technology characterized by simple process,high efficiency,and low cost.However,its application in mine remediation and management projects is relatively limited.This study selects a certain realgar mine smelting area as the research object,and uses PRB reactive barrier technology combined with impervious wall blocking and sewage extraction treatment to remediate groundwater arsenic pollution.By collecting groundwater samples(64 samples)and surface water samples(64 samples)every quarter from 2022 to 2023,the effectiveness of PRB combined with other groundwater remediation technologies in engineering applications is analyzed and discussed.The results show that the combination of downstream impervious wall blocking,PRB reactive barrier remediation,and collection of mine water for treatment by sewage treatment plants can effectively prevent arsenic pollution in groundwater from affecting human health.Moreover,during the service life of the filler,the PRB reactive barrier has a more stable effect on arsenic remediation in groundwater than sewage treatment plants(chemical precipitation+adsorption method).The results of this study provide a reference for the practical application of PRB technology in groundwater arsenic remediation and management projects,broadening its application scenarios.

关 键 词：PRB技术 防渗墙阻隔 砷污染 污水处理 雄黄矿 

分 类 号：X52[环境科学与工程—环境工程]