| DOI: | 10.2172/1164392
|
| 报告号: | DOE-USGS-0001773
|
| 报告题名: | Geoelectrical Measurement of Multi-Scale Mass Transfer Parameters |
| 作者: | Day-Lewis, Frederick David1; Singha, Kamini2; Johnson, Timothy C.3; Haggerty, Roy4; Binley, Andrew5; Lane, John W.1
|
| 出版年: | 2014
|
| 发表日期: | 2014-11-25
|
| 国家: | 美国
|
| 语种: | 英语
|
| 英文关键词: | mass transfer
; dual domain
; electrical resistivity
|
| 中文主题词: | 导电性
|
| 主题词: | CONDUCTIVITY
|
| 英文摘要: | Mass transfer affects contaminant transport and is thought to control the efficiency of aquifer remediation at a number of sites within the Department of Energy (DOE) complex. An improved understanding of mass transfer is critical to meeting the enormous scientific and engineering challenges currently facing DOE. Informed design of site remedies and long-term stewardship of radionuclide-contaminated sites will require new cost-effective laboratory and field techniques to measure the parameters controlling mass transfer spatially and across a range of scales. In this project, we sought to capitalize on the geophysical signatures of mass transfer. Previous numerical modeling and pilot-scale field experiments suggested that mass transfer produces a geoelectrical signatureâa hysteretic relation between sampled (mobile-domain) fluid conductivity and bulk (mobile + immobile) conductivityâover a range of scales relevant to aquifer remediation. In this work, we investigated the geoelectrical signature of mass transfer during tracer transport in a series of controlled experiments to determine the operation of controlling parameters, and also investigated the use of complex-resistivity (CR) as a means of quantifying mass transfer parameters in situ without tracer experiments. In an add-on component to our grant, we additionally considered nuclear magnetic resonance (NMR) to help parse mobile from immobile porosities. Including the NMR component, our revised study objectives were to: 1. Develop and demonstrate geophysical approaches to measure mass-transfer parameters spatially and over a range of scales, including the combination of electrical resistivity monitoring, tracer tests, complex resistivity, nuclear magnetic resonance, and materials characterization; and 2. Provide mass-transfer estimates for improved understanding of contaminant fate and transport at DOE sites, such as uranium transport at the Hanford 300 Area. To achieve our objectives, we implemented a 3-part research plan involving (1) development of computer codes and techniques to estimate mass-transfer parameters from time-lapse electrical data; (2) bench-scale experiments on synthetic materials and materials from cores from the Hanford 300 Area; and (3) field demonstration experiments at the DOEâs Hanford 300 Area. In a synergistic add-on to our workplan, we analyzed data from field experiments performed at the DOE Naturita Site under a separate DOE SBR grant, on which PI Day-Lewis served as co-PI. Techniques developed for application to Hanford datasets also were applied to data from Naturita. |
| URL: | http://www.osti.gov/scitech/servlets/purl/1164392
|
| Citation statistics: |
|
| 资源类型: | 研究报告
|
| 标识符: | http://119.78.100.158/handle/2HF3EXSE/41348
|
| Appears in Collections: | 过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响
|
| File Name/ File Size |
Content Type |
Version |
Access |
License |
|
|---|
| 1164392.doc（3679KB） | 研究报告 | -- | 开放获取 | | View
Download
|
|
|
作者单位: | 1. U.S. Geological Survey
2. Colorado School of Mines
3. Pacific Northwest National Laboratory
4. Oregon State
5. Lancaster University
|
| Recommended Citation: | |
Day-Lewis, Frederick David,Singha, Kamini,Johnson, Timothy C.,et al. Geoelectrical Measurement of Multi-Scale Mass Transfer Parameters. 2014-01-01.
|
|
|