Feasibility and Performance of Full-Scale In-Situ Remediation of TCE by ERD in Clay Tills

Mette Martina Broholm; Ida Damgaard; Julie Claire Claudia Chambon; Gabriele Manoli; Dorte Moon Pade; Camilla Maymann Christiansen; Philip John Binning; Claus Westergaard; Aikaterini Tsitonaki; Mette Christophersen; Henriette Kerrn-Jespersen; Poul Løgstrup Bjerg

Feasibility and Performance of Full-Scale In-Situ Remediation of TCE by ERD in Clay Tills

Mette Martina Broholm, Ida Damgaard, Julie Claire Claudia Chambon, Gabriele Manoli, Dorte Moon Pade, Camilla Maymann Christiansen, Philip John Binning, Claus Westergaard, Aikaterini Tsitonaki, Mette Christophersen, Henriette Kerrn-Jespersen, Poul Løgstrup Bjerg

Research output: Contribution to conference › Paper › Research › peer-review

Abstract

The feasibility and performance of full-scale applications of ERD in clay tills were investigated in a research project including 2 sites in Denmark, which have been undergoing remediation since 2006. At both sites organic substrates and bioaugmentation cultures have been injected in TCE-contaminated clay till. An integrated investigative approach consisting of water and clay core sample analysis, including
stable isotopes and specific degraders, combined with modeling has been applied. The results showed that the chlorinated solvent TCE was converted into its daughter products but complete conversion to ethene was not achieved within a timeframe of 4 years. Large variation in the effect of ERD in the clay matrix between sites, boreholes and even between cores was observed. Four years post ERD initiation, the mass removal at the 2 sites varied between <5% and 50% within the treated zones. Low mass removal was associated with degradation being restricted to narrow bioactive zones. Bioactive zones may expand and in some cores TCE was depleted in zones up to 1.8 m thick – an extent
which could not be explained by diffusive loss to narrow bioactive zones. Hence, biomass migration in the clay matrix appears to play an important role for contaminant mass reduction.

Original language	English
Publication date	2012
Number of pages	4
Publication status	Published - 2012
Event	4th Joint Nordic Meeting on Remediation of Contaminated Sites - Oslo, Norway Duration: 18 Sept 2012 → 21 Sept 2012 Conference number: 4 http://www.nordrocs.org/

Conference

Conference	4th Joint Nordic Meeting on Remediation of Contaminated Sites
Number	4
Country/Territory	Norway
City	Oslo
Period	18/09/2012 → 21/09/2012
Internet address	http://www.nordrocs.org/

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Broholm, M. M., Damgaard, I., Chambon, J. C. C., Manoli, G., Pade, D. M., Christiansen, C. M., Binning, P. J., Westergaard, C., Tsitonaki, A., Christophersen, M., Kerrn-Jespersen, H., & Bjerg, P. L. (2012). Feasibility and Performance of Full-Scale In-Situ Remediation of TCE by ERD in Clay Tills. Paper presented at 4th Joint Nordic Meeting on Remediation of Contaminated Sites, Oslo, Norway.

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title = "Feasibility and Performance of Full-Scale In-Situ Remediation of TCE by ERD in Clay Tills",

abstract = "The feasibility and performance of full-scale applications of ERD in clay tills were investigated in a research project including 2 sites in Denmark, which have been undergoing remediation since 2006. At both sites organic substrates and bioaugmentation cultures have been injected in TCE-contaminated clay till. An integrated investigative approach consisting of water and clay core sample analysis, includingstable isotopes and specific degraders, combined with modeling has been applied. The results showed that the chlorinated solvent TCE was converted into its daughter products but complete conversion to ethene was not achieved within a timeframe of 4 years. Large variation in the effect of ERD in the clay matrix between sites, boreholes and even between cores was observed. Four years post ERD initiation, the mass removal at the 2 sites varied between <5% and 50% within the treated zones. Low mass removal was associated with degradation being restricted to narrow bioactive zones. Bioactive zones may expand and in some cores TCE was depleted in zones up to 1.8 m thick – an extentwhich could not be explained by diffusive loss to narrow bioactive zones. Hence, biomass migration in the clay matrix appears to play an important role for contaminant mass reduction.",

author = "Broholm, {Mette Martina} and Ida Damgaard and Chambon, {Julie Claire Claudia} and Gabriele Manoli and Pade, {Dorte Moon} and Christiansen, {Camilla Maymann} and Binning, {Philip John} and Claus Westergaard and Aikaterini Tsitonaki and Mette Christophersen and Henriette Kerrn-Jespersen and Bjerg, {Poul L{\o}gstrup}",

year = "2012",

language = "English",

note = "4th Joint Nordic Meeting on Remediation of Contaminated Sites, NORDROCS 2012 ; Conference date: 18-09-2012 Through 21-09-2012",

url = "http://www.nordrocs.org/",

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Broholm, MM, Damgaard, I, Chambon, JCC, Manoli, G, Pade, DM, Christiansen, CM, Binning, PJ, Westergaard, C, Tsitonaki, A, Christophersen, M, Kerrn-Jespersen, H & Bjerg, PL 2012, 'Feasibility and Performance of Full-Scale In-Situ Remediation of TCE by ERD in Clay Tills', Paper presented at 4th Joint Nordic Meeting on Remediation of Contaminated Sites, Oslo, Norway, 18/09/2012 - 21/09/2012.

TY - CONF

T1 - Feasibility and Performance of Full-Scale In-Situ Remediation of TCE by ERD in Clay Tills

AU - Broholm, Mette Martina

AU - Damgaard, Ida

AU - Chambon, Julie Claire Claudia

AU - Manoli, Gabriele

AU - Pade, Dorte Moon

AU - Christiansen, Camilla Maymann

AU - Binning, Philip John

AU - Westergaard, Claus

AU - Tsitonaki, Aikaterini

AU - Christophersen, Mette

AU - Kerrn-Jespersen, Henriette

AU - Bjerg, Poul Løgstrup

N1 - Conference code: 4

PY - 2012

Y1 - 2012

N2 - The feasibility and performance of full-scale applications of ERD in clay tills were investigated in a research project including 2 sites in Denmark, which have been undergoing remediation since 2006. At both sites organic substrates and bioaugmentation cultures have been injected in TCE-contaminated clay till. An integrated investigative approach consisting of water and clay core sample analysis, includingstable isotopes and specific degraders, combined with modeling has been applied. The results showed that the chlorinated solvent TCE was converted into its daughter products but complete conversion to ethene was not achieved within a timeframe of 4 years. Large variation in the effect of ERD in the clay matrix between sites, boreholes and even between cores was observed. Four years post ERD initiation, the mass removal at the 2 sites varied between <5% and 50% within the treated zones. Low mass removal was associated with degradation being restricted to narrow bioactive zones. Bioactive zones may expand and in some cores TCE was depleted in zones up to 1.8 m thick – an extentwhich could not be explained by diffusive loss to narrow bioactive zones. Hence, biomass migration in the clay matrix appears to play an important role for contaminant mass reduction.

AB - The feasibility and performance of full-scale applications of ERD in clay tills were investigated in a research project including 2 sites in Denmark, which have been undergoing remediation since 2006. At both sites organic substrates and bioaugmentation cultures have been injected in TCE-contaminated clay till. An integrated investigative approach consisting of water and clay core sample analysis, includingstable isotopes and specific degraders, combined with modeling has been applied. The results showed that the chlorinated solvent TCE was converted into its daughter products but complete conversion to ethene was not achieved within a timeframe of 4 years. Large variation in the effect of ERD in the clay matrix between sites, boreholes and even between cores was observed. Four years post ERD initiation, the mass removal at the 2 sites varied between <5% and 50% within the treated zones. Low mass removal was associated with degradation being restricted to narrow bioactive zones. Bioactive zones may expand and in some cores TCE was depleted in zones up to 1.8 m thick – an extentwhich could not be explained by diffusive loss to narrow bioactive zones. Hence, biomass migration in the clay matrix appears to play an important role for contaminant mass reduction.

M3 - Paper

T2 - 4th Joint Nordic Meeting on Remediation of Contaminated Sites

Y2 - 18 September 2012 through 21 September 2012

ER -

Feasibility and Performance of Full-Scale In-Situ Remediation of TCE by ERD in Clay Tills

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