对磁性,瞬态电磁性和电电阻性断层扫描数据的联合解释,用于垃圾填埋场表征和污染检测
Ismael M Ibraheem1, Pritam Yogeshwar2, Rainer Bergers2
1Institute of Geophysics and Meteorology, University of Cologne, Pohligstrasse 3, 50969, Cologne, Germany. ismael.ibraheem@geo.uni-koeln.de.
Scientific reports
|December 23, 2024
概括
使用磁性,电电阻断层扫描 (ERT) 和短暂电磁 (TEM) 方法进行的地球物理调查有效地绘制了垃圾填埋场的地图,并确定了潜在的地下水污染. 综合方法为环境管理提供了对地下条件的全面了解.
科学领域:
- 环境地质物理学 环境地质物理学
- 地理学地点的特征描述.
- 污染评估 污染评估
背景情况:
- 垃圾填埋场的表征对于环境管理和整治至关重要.
- 非侵入性地质物理技术提供了有效的地下勘探方法.
- 评估地下水污染需要详细了解埋藏的废物体.
研究的目的:
- 描述德国科隆Weidenpesch垃圾填埋场的情况.
- 通过综合地质物理方法评估潜在的地下水污染.
- 评估磁性,ERT和TEM调查对垃圾填埋场评估的有效性.
主要方法:
- 综合地质物理调查,包括磁性电电阻断层扫描 (ERT) 和短暂电磁 (TEM).
- 分析电阻和导电率的变化,以界定垃圾填埋场的边界和识别废物.
- 地质物理数据与用于污染评估的钻井信息的相关性.
主要成果:
- 地质物理方法成功地划定了垃圾填埋场的边界,并确定了具有明显电阻值 (1-50 Ω·m) 的废物体.
- 在20-25米深处的低电阻异常,与钻井数据相关,表明污染的煤/粘土层.
- 随着时间的推移,通过重复的TEM测量检测到的地表导电率变化表明动态变化,需要持续监测.
结论:
- 综合地质物理方法提供了对垃圾填埋场地下条件的全面了解.
- 地质物理技术是识别潜在地下水污染和异质埋藏材料的有效工具.
- 持续监测对于有效的环境管理和垃圾填埋场的整治至关重要.
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