基于电阻率异常和MODFLOW的垃圾填埋场渗流检测试验研究

IF 2.1 3区 地球科学 Q2 GEOSCIENCES, MULTIDISCIPLINARY
Jingrui Xiao , Yanli Ding , Min Huang , Bin Xiong , Shaoyuan Bai
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引用次数: 0

摘要

垃圾填埋场经济实用,技术优势显著,在世界范围内被广泛应用于固体废物处理。然而,几乎所有的垃圾填埋场防渗层都存在渗漏问题,如果不及时发现和修复渗漏点,垃圾渗滤液将通过孔隙渗漏到土壤或环境水中,对环境健康和安全构成潜在风险。因此,准确检测垃圾填埋场泄漏,实时监测污染羽流,对垃圾填埋场污染控制与修复具有重要意义。本研究在填埋场底部采用原位电阻率检测,利用Visual MODFLOW建立填埋场溶质输运模型。结果表明,通过对比泄漏前后的电阻率差,可以准确地探测到泄漏点的位置。通过将电阻率数据转换成浓度数据,可以对地下水模型进行验证。反向验证了原位电阻率检测的可行性,可用于监测和预测污染羽流的迁移路径,为垃圾填埋场渗漏的处理和修复提供一定的技术支持。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Experimental study of seepage detection in landfills based on resistivity anomaly and MODFLOW
Landfills, which are economical, practical, and have significant technological advantages, are widely used in solid waste treatment worldwide. However, almost all landfill impermeable layers have leakage problems, and if the leakage points are not detected and repaired timeously, garbage leachate will leak through the pores into the soil or ambient water, posing a potential risk to environmental health and safety. Therefore, the accurate detection of landfill leakage and real-time monitoring of pollution plumes is of great significance for landfill pollution control and restoration. In this study, in-situ resistivity detection was used at the bottom of a landfill site, and Visual MODFLOW was used to establish a solute transport model of the landfill site. The results show that the location of the leakage point can be accurately detected by comparing the resistivity difference before and after leakage. The groundwater model can be verified by converting the resistivity data into concentration data. The feasibility of in-situ resistivity detection was verified in reverse, and it can be used to monitor and predict the migration path of pollution plumes and provide some technical support for the treatment and repair of landfill leakage.
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来源期刊
Journal of Applied Geophysics
Journal of Applied Geophysics 地学-地球科学综合
CiteScore
3.60
自引率
10.00%
发文量
274
审稿时长
4 months
期刊介绍: The Journal of Applied Geophysics with its key objective of responding to pertinent and timely needs, places particular emphasis on methodological developments and innovative applications of geophysical techniques for addressing environmental, engineering, and hydrological problems. Related topical research in exploration geophysics and in soil and rock physics is also covered by the Journal of Applied Geophysics.
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