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Successful combination of remediation techniques at a former silver factory
Author(s) -
Roosma Anneke,
Godschalk Bas,
Lageman Reinout,
Henssen Maurice,
Bemmel Marc Van
Publication year - 2006
Publication title -
remediation journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.762
H-Index - 27
eISSN - 1520-6831
pISSN - 1051-5658
DOI - 10.1002/rem.20113
Subject(s) - environmental remediation , land reclamation , groundwater , environmental science , chlorinated solvents , plume , extraction (chemistry) , waste management , contamination , environmental engineering , environmental chemistry , soil contamination , soil water , chemistry , soil science , geology , engineering , geotechnical engineering , chromatography , ecology , archaeology , biology , physics , history , thermodynamics
A residential area that was formerly part of a silver factory site severely contaminated with chlorinated solvents was remediated using an in situ electro‐bioreclamation technique. Electro‐bioreclamation is a method for heating soil and groundwater combined with soil vapor and low‐yield groundwater extraction and enhanced reductive dechlorination (ERD). During the first two years of remediation in the source area (the intensive phase), a total of 80 kg of volatile organic compounds (VOCs) was removed by heating combined with ERD. After another two years of ERD in the source and plume areas (the attenuation phase), the VOC concentrations were reduced to a level below 100 μg/L in groundwater. Given these satisfying results, electro‐reclamation in combination with ERD turned out to be a successful in situ remediation technique for removing VOCs. © 2006Wiley Periodicals, Inc.