Life cycle assessment (LCA) as a decision-suppport tool for the evaluation of environmental impacts of site remediation on the global, regional and local scale

Gitte Lemming, C. Bulle, Manuele Margni, Michael Zwicky Hauschild, Julie Claire Claudia Chambon, Philip John Binning, Poul Løgstrup Bjerg

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

Abstract

Life cycle assessment (LCA) was used to compare the environment al impacts of three alternatives for remediating a TCE-contaminated site: (i) enhanced reductive dechlorination (ERD); (ii) in situ thermal desorption (ISTD) and (iii) excavation with off-site soil treatment. In addition, the remediation alternatives were compared to a no action scenario, where only monitoring and natural attenuation takes place. A numerical reactive fracture model was used to predict the timeframes for the ERD and the no action scenarios. Moreover, the model was used to estimate the mass discharge of TCE and degradation products leaching to the drinking water aquifer during these timeframes. These local toxic impacts, referred to as primary impacts, were included in the LCA together with impact on the local, regional and global scale caused by the remediation itself – the termed secondary impacts. The results of the LCA showed that of the three remediation methods compared, the ERD had the lowest total environmental impacts, even though it had significant primary impacts due to its long timeframe. The environmental impacts of ERD were comparable or only slightly higher than those of the no action scenario. ISTD had the highest global warming potential of the three remediation technologies, but excavation proved worse than ISTD in most of the remaining impact categories, e.g. eutrophication, ozone formation, ecotoxicity and human toxicity.
Original languageEnglish
Title of host publicationNORDROCS 2010 : 3. Joint Nordic Meeting on Remediation of Contaminated Sites
Place of PublicationKgs. Lyngby
PublisherATV Jord og Grundvand
Publication date2010
Pages29-32
Publication statusPublished - 2010
Event3rd Joint Nordic Meeting on Remediation of Contaminated Sites - Copenhagen, Denmark
Duration: 15 Sep 201016 Sep 2010
Conference number: 3

Conference

Conference3rd Joint Nordic Meeting on Remediation of Contaminated Sites
Number3
CountryDenmark
CityCopenhagen,
Period15/09/201016/09/2010

Cite this

Lemming, G., Bulle, C., Margni, M., Hauschild, M. Z., Chambon, J. C. C., Binning, P. J., & Bjerg, P. L. (2010). Life cycle assessment (LCA) as a decision-suppport tool for the evaluation of environmental impacts of site remediation on the global, regional and local scale. In NORDROCS 2010: 3. Joint Nordic Meeting on Remediation of Contaminated Sites (pp. 29-32). Kgs. Lyngby: ATV Jord og Grundvand.
Lemming, Gitte ; Bulle, C. ; Margni, Manuele ; Hauschild, Michael Zwicky ; Chambon, Julie Claire Claudia ; Binning, Philip John ; Bjerg, Poul Løgstrup. / Life cycle assessment (LCA) as a decision-suppport tool for the evaluation of environmental impacts of site remediation on the global, regional and local scale. NORDROCS 2010: 3. Joint Nordic Meeting on Remediation of Contaminated Sites. Kgs. Lyngby : ATV Jord og Grundvand, 2010. pp. 29-32
@inproceedings{089e2d7e19db4d3e8c0f27c4fff621ed,
title = "Life cycle assessment (LCA) as a decision-suppport tool for the evaluation of environmental impacts of site remediation on the global, regional and local scale",
abstract = "Life cycle assessment (LCA) was used to compare the environment al impacts of three alternatives for remediating a TCE-contaminated site: (i) enhanced reductive dechlorination (ERD); (ii) in situ thermal desorption (ISTD) and (iii) excavation with off-site soil treatment. In addition, the remediation alternatives were compared to a no action scenario, where only monitoring and natural attenuation takes place. A numerical reactive fracture model was used to predict the timeframes for the ERD and the no action scenarios. Moreover, the model was used to estimate the mass discharge of TCE and degradation products leaching to the drinking water aquifer during these timeframes. These local toxic impacts, referred to as primary impacts, were included in the LCA together with impact on the local, regional and global scale caused by the remediation itself – the termed secondary impacts. The results of the LCA showed that of the three remediation methods compared, the ERD had the lowest total environmental impacts, even though it had significant primary impacts due to its long timeframe. The environmental impacts of ERD were comparable or only slightly higher than those of the no action scenario. ISTD had the highest global warming potential of the three remediation technologies, but excavation proved worse than ISTD in most of the remaining impact categories, e.g. eutrophication, ozone formation, ecotoxicity and human toxicity.",
author = "Gitte Lemming and C. Bulle and Manuele Margni and Hauschild, {Michael Zwicky} and Chambon, {Julie Claire Claudia} and Binning, {Philip John} and Bjerg, {Poul L{\o}gstrup}",
year = "2010",
language = "English",
pages = "29--32",
booktitle = "NORDROCS 2010",
publisher = "ATV Jord og Grundvand",

}

Lemming, G, Bulle, C, Margni, M, Hauschild, MZ, Chambon, JCC, Binning, PJ & Bjerg, PL 2010, Life cycle assessment (LCA) as a decision-suppport tool for the evaluation of environmental impacts of site remediation on the global, regional and local scale. in NORDROCS 2010: 3. Joint Nordic Meeting on Remediation of Contaminated Sites. ATV Jord og Grundvand, Kgs. Lyngby, pp. 29-32, 3rd Joint Nordic Meeting on Remediation of Contaminated Sites, Copenhagen, Denmark, 15/09/2010.

Life cycle assessment (LCA) as a decision-suppport tool for the evaluation of environmental impacts of site remediation on the global, regional and local scale. / Lemming, Gitte; Bulle, C.; Margni, Manuele; Hauschild, Michael Zwicky; Chambon, Julie Claire Claudia; Binning, Philip John; Bjerg, Poul Løgstrup.

NORDROCS 2010: 3. Joint Nordic Meeting on Remediation of Contaminated Sites. Kgs. Lyngby : ATV Jord og Grundvand, 2010. p. 29-32.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

TY - GEN

T1 - Life cycle assessment (LCA) as a decision-suppport tool for the evaluation of environmental impacts of site remediation on the global, regional and local scale

AU - Lemming, Gitte

AU - Bulle, C.

AU - Margni, Manuele

AU - Hauschild, Michael Zwicky

AU - Chambon, Julie Claire Claudia

AU - Binning, Philip John

AU - Bjerg, Poul Løgstrup

PY - 2010

Y1 - 2010

N2 - Life cycle assessment (LCA) was used to compare the environment al impacts of three alternatives for remediating a TCE-contaminated site: (i) enhanced reductive dechlorination (ERD); (ii) in situ thermal desorption (ISTD) and (iii) excavation with off-site soil treatment. In addition, the remediation alternatives were compared to a no action scenario, where only monitoring and natural attenuation takes place. A numerical reactive fracture model was used to predict the timeframes for the ERD and the no action scenarios. Moreover, the model was used to estimate the mass discharge of TCE and degradation products leaching to the drinking water aquifer during these timeframes. These local toxic impacts, referred to as primary impacts, were included in the LCA together with impact on the local, regional and global scale caused by the remediation itself – the termed secondary impacts. The results of the LCA showed that of the three remediation methods compared, the ERD had the lowest total environmental impacts, even though it had significant primary impacts due to its long timeframe. The environmental impacts of ERD were comparable or only slightly higher than those of the no action scenario. ISTD had the highest global warming potential of the three remediation technologies, but excavation proved worse than ISTD in most of the remaining impact categories, e.g. eutrophication, ozone formation, ecotoxicity and human toxicity.

AB - Life cycle assessment (LCA) was used to compare the environment al impacts of three alternatives for remediating a TCE-contaminated site: (i) enhanced reductive dechlorination (ERD); (ii) in situ thermal desorption (ISTD) and (iii) excavation with off-site soil treatment. In addition, the remediation alternatives were compared to a no action scenario, where only monitoring and natural attenuation takes place. A numerical reactive fracture model was used to predict the timeframes for the ERD and the no action scenarios. Moreover, the model was used to estimate the mass discharge of TCE and degradation products leaching to the drinking water aquifer during these timeframes. These local toxic impacts, referred to as primary impacts, were included in the LCA together with impact on the local, regional and global scale caused by the remediation itself – the termed secondary impacts. The results of the LCA showed that of the three remediation methods compared, the ERD had the lowest total environmental impacts, even though it had significant primary impacts due to its long timeframe. The environmental impacts of ERD were comparable or only slightly higher than those of the no action scenario. ISTD had the highest global warming potential of the three remediation technologies, but excavation proved worse than ISTD in most of the remaining impact categories, e.g. eutrophication, ozone formation, ecotoxicity and human toxicity.

M3 - Article in proceedings

SP - 29

EP - 32

BT - NORDROCS 2010

PB - ATV Jord og Grundvand

CY - Kgs. Lyngby

ER -

Lemming G, Bulle C, Margni M, Hauschild MZ, Chambon JCC, Binning PJ et al. Life cycle assessment (LCA) as a decision-suppport tool for the evaluation of environmental impacts of site remediation on the global, regional and local scale. In NORDROCS 2010: 3. Joint Nordic Meeting on Remediation of Contaminated Sites. Kgs. Lyngby: ATV Jord og Grundvand. 2010. p. 29-32