综合方法,将地质化学和地质物理实验室数据连接起来,用于对废渣堆进行地质物理调查,以量化资源
Itzel Isunza Manrique1, Thomas Hermans2, David Caterina1
1Urban and Environmental Engineering, University of Liege, Quartier Polytech 1, Allée de la Découverte 9 - B52, 4000, Liege, Belgium.
Journal of environmental management
|October 27, 2023
概括
本研究提出了一种新方法,利用地质物理数据估计工业废物中的原材料量. 该方法整合了实验室和现场测量,以准确评估资源回收.
科学领域:
- 地质物理学 地质物理学
- 地质化学 地质化学
- 资源工程 资源工程
背景情况:
- 由于严重的原材料短缺,需要对工业废物进行勘探.
- 地质物理方法有助于描述这些残留物,但缺乏定量地质化学联系.
- 金废弃物需要可持续的管理和资源回收战略.
研究的目的:
- 开发和验证一种方法,整合地质化学和地质物理数据,用于对金残留物的定量解释.
- 为了估计潜在的资源回收,在废渣堆内估计不同类型材料的数量.
- 解决需要更多量化方法的需求,将地质物理现场数据与地化学组成联系起来.
主要方法:
- 使用电电阻断层扫描 (ERT) 和诱导极化 (IP) 的3D地质物理场采集.
- 实验室测量包括ERT,IP,光谱诱导极化 (SIP) 和X射线光 (XRF) 分析.
- 使用2D内核密度估计器 (KDE) 进行3D概率分类,将其安装在与样本合并的倒置ERT/IP数据上.
主要成果:
- 在渣渣堆中发现了四个不同的化学成分组.
- 这些组的估计体积从4.17 × 103 m3到1.888 × 105 m3不等,并存在相关的不确定性.
- 该方法成功将地球物理数据与地球化学成分联系起来,使得体积估计成为可能.
结论:
- 综合方法提供了地质物理数据和金残留物的地化学组成之间的定量联系.
- 准确的采样和KDE带宽选择对于分类和体积估计至关重要.
- 这种方法为评估工业废物资源回收潜力提供了有价值的工具.
相关概念视频
Gravimetry: Overview
6.0K
Gravimetric analysis is a quantitative method where the analyte is isolated and weighed directly or after conversion into a substance of known composition. Gravimetric analysis can be classified as precipitation, electrogravimetry, volatilization, and particulate gravimetry, based on the method used to isolate the analyte.
In precipitation gravimetry, the analyte is converted into a precipitate and weighed. For example, the silver content in a sample can be estimated by precipitating and...
In precipitation gravimetry, the analyte is converted into a precipitate and weighed. For example, the silver content in a sample can be estimated by precipitating and...
6.0K
Electrogravimetric Analysis: Overview
245
Electrogravimetric analysis measures the weight of an analyte deposited electrolytically onto a suitable working electrode. This method involves applying a potential to a pre-weighed electrode submerged in a solution, which results in the desired substance being deposited through reduction at the cathode or oxidation at the anode. The electrode's weight is recorded after deposition, and the difference in weight gives the analyte's weight in the solution.
To test the completeness of the...
To test the completeness of the...
245
Sample Preparation for Analysis: Advanced Techniques
378
Accurate analysis of complex samples often requires advanced preparation techniques to achieve reliable and reproducible results. Samples containing inorganic or organic materials can be challenging to dissolve or decompose effectively. Standard sample preparation methods include acid digestion, fusion, dry ashing, and wet digestion.
Acid digestion with strong acids is commonly used to dissolve inorganic materials that are insoluble (do not dissolve) in water. This method can be useful for...
Acid digestion with strong acids is commonly used to dissolve inorganic materials that are insoluble (do not dissolve) in water. This method can be useful for...
378


