Multidisciplinary monitoring of an in-situ remediation test of chlorinated solvents
(2024) In Science of the Total Environment 922.- Abstract
Pollutions on and within the underground poses risks for groundwater contamination and is a widespread global problem. Common remediation methods based on digging and removal can be expensive and have limitations, while in-situ remediation is an attractive alternative. However, there is a need to develop tools to monitor the effectiveness both in terms of the successful injection of remediation fluids but also the effectiveness of the treatment, i.e., degree of degradation/removal of the pollutants and possible metabolites. This paper presents a methodology for monitoring the changes following an in-situ remediation treatment of a site contaminated with chlorinated solvents. The methodology consists of two different methods, where... (More)
Pollutions on and within the underground poses risks for groundwater contamination and is a widespread global problem. Common remediation methods based on digging and removal can be expensive and have limitations, while in-situ remediation is an attractive alternative. However, there is a need to develop tools to monitor the effectiveness both in terms of the successful injection of remediation fluids but also the effectiveness of the treatment, i.e., degree of degradation/removal of the pollutants and possible metabolites. This paper presents a methodology for monitoring the changes following an in-situ remediation treatment of a site contaminated with chlorinated solvents. The methodology consists of two different methods, where Direct Current resistivity and time-domain Induced Polarization (DCIP) was used to acquire daily data and geochemical analyses on water samples were collected approximately every three months. The geophysical results provide insights on how the injected fluids are spreading and assist in acquiring a better understanding of the geological and hydrogeological system. On the other hand, the geochemical sampling enhances our knowledge about the hydrochemistry of the system and the concentration of the pollutants. Our research highlights the challenges of monitoring in-situ bioremediation experiments in complex environments and in cases where pollutants are situated in low hydraulic conductivity formations. The joint interpretation of the data shows the importance of an interdisciplinary approach to understand complex systems.
(Less)
- author
- Nivorlis, Aristeidis LU ; Sparrenbom, Charlotte LU ; Rossi, Matteo LU ; Åkesson, Sofia LU and Dahlin, Torleif LU
- organization
- publishing date
- 2024-04-20
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Geoelectrical, Hydrochemistry, In-situ bioremediation, Induced polarization, Monitoring, Polluted ground, Resistivity
- in
- Science of the Total Environment
- volume
- 922
- article number
- 170942
- publisher
- Elsevier
- external identifiers
-
- pmid:38360317
- scopus:85186622252
- ISSN
- 0048-9697
- DOI
- 10.1016/j.scitotenv.2024.170942
- language
- English
- LU publication?
- yes
- id
- 9bcc5535-0390-4c8a-9ca4-a2eb63830cc9
- date added to LUP
- 2024-03-14 15:21:15
- date last changed
- 2024-04-25 12:04:01
@article{9bcc5535-0390-4c8a-9ca4-a2eb63830cc9,
abstract = {{<p>Pollutions on and within the underground poses risks for groundwater contamination and is a widespread global problem. Common remediation methods based on digging and removal can be expensive and have limitations, while in-situ remediation is an attractive alternative. However, there is a need to develop tools to monitor the effectiveness both in terms of the successful injection of remediation fluids but also the effectiveness of the treatment, i.e., degree of degradation/removal of the pollutants and possible metabolites. This paper presents a methodology for monitoring the changes following an in-situ remediation treatment of a site contaminated with chlorinated solvents. The methodology consists of two different methods, where Direct Current resistivity and time-domain Induced Polarization (DCIP) was used to acquire daily data and geochemical analyses on water samples were collected approximately every three months. The geophysical results provide insights on how the injected fluids are spreading and assist in acquiring a better understanding of the geological and hydrogeological system. On the other hand, the geochemical sampling enhances our knowledge about the hydrochemistry of the system and the concentration of the pollutants. Our research highlights the challenges of monitoring in-situ bioremediation experiments in complex environments and in cases where pollutants are situated in low hydraulic conductivity formations. The joint interpretation of the data shows the importance of an interdisciplinary approach to understand complex systems.</p>}},
author = {{Nivorlis, Aristeidis and Sparrenbom, Charlotte and Rossi, Matteo and Åkesson, Sofia and Dahlin, Torleif}},
issn = {{0048-9697}},
keywords = {{Geoelectrical; Hydrochemistry; In-situ bioremediation; Induced polarization; Monitoring; Polluted ground; Resistivity}},
language = {{eng}},
month = {{04}},
publisher = {{Elsevier}},
series = {{Science of the Total Environment}},
title = {{Multidisciplinary monitoring of an in-situ remediation test of chlorinated solvents}},
url = {{http://dx.doi.org/10.1016/j.scitotenv.2024.170942}},
doi = {{10.1016/j.scitotenv.2024.170942}},
volume = {{922}},
year = {{2024}},
}