在酸性矿井排水过程中复杂的电气测量废岩:动力柱测试
Difan Su1, Angelos Almpanis1, Christopher Power1
1Department of Civil and Environmental Engineering, Western University, London, Ontario, Canada.
Journal of environmental management
|January 5, 2024
概括
这项研究表明,地电方法可以在酸性矿井排水 (AMD) 生产期间监测废岩堆中的变化. 真实导电性跟踪液质量,而虚构导电性提供了对矿物学转变的见解.
科学领域:
- 环境科学 环境科学
- 地质物理学 地质物理学
- 采矿工程 采矿工程 采矿工程
背景情况:
- 废岩堆 (WRP) 的酸性矿井排水 (AMD) 给环境带来了重大挑战.
- 目前的监测方法具有破坏性,成本高昂,并且提供有限的空间数据.
- 非侵入性地质电技术为WRP表征提供了一个有希望的替代方案.
研究的目的:
- 为了调查废弃岩石的地电特征,经过酸性矿井排水生成和释放.
- 评估复杂的电导度测量的有效性,以监测WRP的演变.
主要方法:
- 矿物学和酸生成潜力的田间废物岩石样本的表征.
- 动力测试 (漂水柱,湿度细胞) 模拟AMD的产生.
- 同时测量废水质量和复杂的电导率 (真实和虚构组件).
主要成果:
- 实际电导率与AMD液质量 (酸度) 和废物表面变化有很强的相关性.
- 假想的电导率显示了随着时间的推移检测矿物质变化的潜力,尽管不那么明显.
- 低硫化物含量和有限的氧化影响了假想导电特征的清晰度.
结论:
- 地电技术,特别是电电阻断层扫描和诱导极化,显示出对矿山废物进行非侵入性,持续的监测的潜力.
- 了解与AMD过程相关的地电信号对于有效的WRP康复至关重要.
- 这项研究促进了地质物理方法在矿场环境管理中的应用.
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