Source Zone Remediation by ZVI-Clay Soil-Mixing: Reduction of Tetrachloroethene Mass and Mass Discharge at a Danish DNAPL Site

Annika Sidelmann Fjordbøge, Ida Vedel Lange, Philip John Binning, Poul Løgstrup Bjerg, Charlotte Riis, Anders G. Christensen, Mads Terkelsen, Peter Kjeldsen

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

ZVI-Clay soil-mixing is a relatively new in situ remediation technology for remediation of chlorinated dense non-aqueous phase liquids (DNAPLs). The technology combines abiotic degradation (via zero-valent iron, ZVI, addition) and immobilization (via soil mixing and clay addition), whereby both contaminant mass and contaminant mass discharge can be reduced. The technology was tested at a Danish tetrachloroethene (PCE) site. The field sampling consisted of baseline measurements and a 19-month monitoring program (7 sampling campaigns) subsequent to the implementation of ZVI-Clay soil-mixing. The concentrations of chlorinated ethenes were monitored via soil sampling at the source zone and groundwater sampling at a downgradient control plane. The results showed that within one year ZVI-Clay soil-mixing resulted in significant mass depletion of PCE (2-3 orders in magnitude) with ethene as the main degradation product. The down-gradient reduction of contaminant mass discharge was slower; after 19 months a mass discharge reduction of 76 % was obtained for the parent compound PCE, while the overall mass discharge reduction of chlorinated ethenes was 21 %.
Original languageEnglish
Title of host publicationThe 2012 World Congress on Advances in Civil, Environmental, and Materials Research (ACEM´12)
EditorsChang-Koon Choi
Publication date2012
Pages3470-3475
ISBN (Print)978-89-89693-34-5-98530
Publication statusPublished - 2012
EventWorld Congress on Advances in Civil, Environmental, and Materials Research (ACEM’12) - Seoul, Korea, Republic of
Duration: 26 Aug 201230 Aug 2012
http://acem12.cti3.com/

Conference

ConferenceWorld Congress on Advances in Civil, Environmental, and Materials Research (ACEM’12)
CountryKorea, Republic of
CitySeoul
Period26/08/201230/08/2012
Internet address

Fingerprint Dive into the research topics of 'Source Zone Remediation by ZVI-Clay Soil-Mixing: Reduction of Tetrachloroethene Mass and Mass Discharge at a Danish DNAPL Site'. Together they form a unique fingerprint.

Cite this