Characterizing natural degradation of tetrachloroethene (PCE) using a multidisciplinary approach

Åkesson, SofiaLund University,Lunds universitet,Kvartärgeologi,Geologiska institutionen,Naturvetenskapliga fakulteten,Quaternary Sciences,Department of Geology,Faculty of Science (author)

A site in mid-western Sweden contaminated with chlorinated solvents originating from a previous dry cleaning facility, was investigated using conventional groundwater analysis combined with compound-specific isotope data of carbon, microbial DNA analysis, and geoelectrical tomography techniques. We show the value of this multidisciplinary approach, as the different results supported each interpretation, and show where natural degradation occurs at the site. The zone where natural degradation occurred was identified in the transition between two geological units, where the change in hydraulic conductivity may have facilitated biofilm formation and microbial activity. This observation was confirmed by all methods and the examination of the impact of geological conditions on the biotransformation process was facilitated by the unique combination of the applied methods. There is thus significant benefit from deploying an extended array of methods for these investigations, with the potential to reduce costs involved in remediation of contaminated sediment and groundwater.

Sparrenbom, Charlotte J.Lund University,Lunds universitet,Kvartärgeologi,Geologiska institutionen,Naturvetenskapliga fakulteten,Quaternary Sciences,Department of Geology,Faculty of Science(Swepub:lu)geol-cjo (author)
Paul, Catherine J.Lund University,Lunds universitet,Avdelningen för Teknisk vattenresurslära,Institutionen för bygg- och miljöteknologi,Institutioner vid LTH,Lunds Tekniska Högskola,Teknisk mikrobiologi,Centrum för tillämpade biovetenskaper,Kemiska institutionen,Division of Water Resources Engineering,Department of Building and Environmental Technology,Departments at LTH,Faculty of Engineering, LTH,Applied Microbiology,Center for Applied Life Sciences,Department of Chemistry,Faculty of Engineering, LTH(Swepub:lu)tmb-cpa (author)
Jansson, RobinLund University,Lunds universitet,Berggrundsgeologi,Geologiska institutionen,Naturvetenskapliga fakulteten,Lithosphere and Biosphere Science,Department of Geology,Faculty of Science(Swepub:lu)ro2530ja (author)
Holmstrand, HenryStockholms universitet,Stockholm University,Institutionen för miljövetenskap(Swepub:su)hehol (author)
KvartärgeologiGeologiska institutionen (creator_code:org_t)

In:Ambio: a Journal of the Human Environment: Springer Science and Business Media LLC50, s. 1074-10880044-74471654-7209
In:Ambio: Springer Science and Business Media LLC50, s. 1074-10881654-7209

By the author/editor: Åkesson, Sofia; Sparrenbom, Char ...; Paul, Catherine ...; Jansson, Robin; Holmstrand, Henr ...

About the subject

NATURAL SCIENCES: NATURAL SCIENCES; and Earth and Relate ...; and Geosciences Mult ...

NATURAL SCIENCES: NATURAL SCIENCES; and Earth and Relate ...; and Geophysics

NATURAL SCIENCES: NATURAL SCIENCES; and Earth and Relate ...; and Environmental Sc ...

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Environmental Bi ...; and Bioremediation

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