Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Development of an innovative methodology for monitoring of in situ remediation of chlorinated solvents – the MIRACHL-project

Rosqvist, Håkan LU ; Sparrenbom, Charlotte J. LU ; Dahlin, Torleif LU ; Rossi, Matteo LU ; Svensson, Mats ; Paul, Catherine J. LU and Holmstrand, Henry (2018) Nordrocs, Joint Nordic meeting on Remediation of Contaminated Sites - International Conference, 2018 p.112-112
Abstract
Background
Dense Non Aqueous Phase Liquids (DNAPL) such as chlorinated solvents are common pollutants stemming from different types of industries including dry cleaning facilities, and reports on cases showing serious risk to soil and ground water are frequent on a global scale. DNAPLs are especially problematic as they are denser than water and move down through the groundwater, not always following the groundwater flow but are mainly driven by gravitational forces. Difficulties associated with remediation activities of DNAPLs are many, especially delineation of the source plume, and understanding of the migration of contaminated groundwater in the underground.
Therefore, the Swedish national environmental authority, (SEPA) has... (More)
Background
Dense Non Aqueous Phase Liquids (DNAPL) such as chlorinated solvents are common pollutants stemming from different types of industries including dry cleaning facilities, and reports on cases showing serious risk to soil and ground water are frequent on a global scale. DNAPLs are especially problematic as they are denser than water and move down through the groundwater, not always following the groundwater flow but are mainly driven by gravitational forces. Difficulties associated with remediation activities of DNAPLs are many, especially delineation of the source plume, and understanding of the migration of contaminated groundwater in the underground.
Therefore, the Swedish national environmental authority, (SEPA) has called for new and innovative in-situ remediation techniques.
The MIRACHL-project (monitoring of in situ remediation of chlorinated hydrocarbon contaminants - http://mirachl.com/) are focused on developing new and innovative methods for better understanding of the transport and fate of chlorinated solvents in soil and groundwater. The MIRACHL-project combine three methods; i)geoelectrical imaging by the geophysical method Direct Current resistivity and Induced Polarisation (DCIP), ii)Physical and BioGeochemical Characterisation (PBGC) and iii)the method Compound-specific isotope analysis (CSIA). The MIRACHL-project, based at the Engineering Geology at Lund University, is a collaborative project including several other universities and other relevant organizations, In particular, the collaboration on field sites with the Geological Survey of Sweden (SGU) is of great importance.

Aim
In the MIRACHL project we develop an integrated methodology based on three
methods, i.e., Direct Current resistivity and Induced Polarisation (DCIP), Physical and BioGeochemical Characterisation (PBGC) and the method Compound-specific isotope analysis (CSIA), to better understand and map in situ remediation processes. A combination of continuous geo-electrical observations during the decontamination, together with the analysis of biogeochemistry and isotope fractionation, provides opportunities to follow transport and fate of chlorinated solvents during different types of in-situ remediation processes.
The MIRACHL-project started in 2016 and will continue until 2022. In 2017, the
MIRACHL methodology was established at two sites in collaboration with SGU, i.e., in Hagfors and Alingsås. At both site contaminations coming from dry cleaning facilities are in focus. The geology and hydrogeology is very different at these sites and the presentation will show the status in mapping and monitoring the ongoing remediation at the sites.
Conclusion
Initial studies performed at a site in Kristianstad (Färgaren 3) show the combination of DCIP, PBGC, and CSIA are promising methodology for mapping of transport and fate of chlorinated solvents. We will present on-going research on two sites where contamination from chlorinated solvents are in focus, i.e, contamination due to dry cleaning activities in Hagfors and Alingsås. (Less)
Please use this url to cite or link to this publication:
author
; ; ; ; ; and
organization
publishing date
type
Contribution to conference
publication status
published
subject
pages
113 pages
conference name
Nordrocs, Joint Nordic meeting on Remediation of Contaminated Sites - International Conference, 2018
conference location
Denmark
conference dates
2018-09-03 - 2018-09-06
project
Characterisation and monitoring of in-situ remediation of chlorinated hydrocarbon contamination using an interdisciplinary approach
language
English
LU publication?
yes
id
1af08874-6614-4ea3-ab83-18422d1ede69
alternative location
http://nordrocs.org/wp-content/uploads/2018/09/Compendium-NORDROCS-2018-updated.pdf
date added to LUP
2019-05-27 06:51:35
date last changed
2019-10-01 10:08:50
@misc{1af08874-6614-4ea3-ab83-18422d1ede69,
  abstract     = {{Background<br/>Dense Non Aqueous Phase Liquids (DNAPL) such as chlorinated solvents are common pollutants stemming from different types of industries including dry cleaning facilities, and reports on cases showing serious risk to soil and ground water are frequent on a global scale. DNAPLs are especially problematic as they are denser than water and move down through the groundwater, not always following the groundwater flow but are mainly driven by gravitational forces. Difficulties associated with remediation activities of DNAPLs are many, especially delineation of the source plume, and understanding of the migration of contaminated groundwater in the underground.<br/>Therefore, the Swedish national environmental authority, (SEPA) has called for new and innovative in-situ remediation techniques.<br/>The MIRACHL-project (monitoring of in situ remediation of chlorinated hydrocarbon contaminants - http://mirachl.com/) are focused on developing new and innovative methods for better understanding of the transport and fate of chlorinated solvents in soil and groundwater. The MIRACHL-project combine three methods; i)geoelectrical imaging by the geophysical method Direct Current resistivity and Induced Polarisation (DCIP), ii)Physical and BioGeochemical Characterisation (PBGC) and iii)the method Compound-specific isotope analysis (CSIA). The MIRACHL-project, based at the Engineering Geology at Lund University, is a collaborative project including several other universities and other relevant organizations, In particular, the collaboration on field sites with the Geological Survey of Sweden (SGU) is of great importance.<br/><br/>Aim<br/>In the MIRACHL project we develop an integrated methodology based on three<br/>methods, i.e., Direct Current resistivity and Induced Polarisation (DCIP), Physical and BioGeochemical Characterisation (PBGC) and the method Compound-specific isotope analysis (CSIA), to better understand and map in situ remediation processes. A combination of continuous geo-electrical observations during the decontamination, together with the analysis of biogeochemistry and isotope fractionation, provides opportunities to follow transport and fate of chlorinated solvents during different types of in-situ remediation processes.<br/>The MIRACHL-project started in 2016 and will continue until 2022. In 2017, the<br/>MIRACHL methodology was established at two sites in collaboration with SGU, i.e., in Hagfors and Alingsås. At both site contaminations coming from dry cleaning facilities are in focus. The geology and hydrogeology is very different at these sites and the presentation will show the status in mapping and monitoring the ongoing remediation at the sites.<br/>Conclusion<br/>Initial studies performed at a site in Kristianstad (Färgaren 3) show the combination of DCIP, PBGC, and CSIA are promising methodology for mapping of transport and fate of chlorinated solvents. We will present on-going research on two sites where contamination from chlorinated solvents are in focus, i.e, contamination due to dry cleaning activities in Hagfors and Alingsås.}},
  author       = {{Rosqvist, Håkan and Sparrenbom, Charlotte J. and Dahlin, Torleif and Rossi, Matteo and Svensson, Mats and Paul, Catherine J. and Holmstrand, Henry}},
  language     = {{eng}},
  month        = {{09}},
  pages        = {{112--112}},
  title        = {{Development of an innovative methodology for monitoring of in situ remediation of chlorinated solvents – the MIRACHL-project}},
  url          = {{http://nordrocs.org/wp-content/uploads/2018/09/Compendium-NORDROCS-2018-updated.pdf}},
  year         = {{2018}},
}