Odense

There are over 11,800 sites in Denmark where groundwater supplies are known to be contaminated, an estimated 1400 of which are contaminated with chlorinated solvents. Accordingly, remediation of contaminated groundwater is an important priority in Denmark as more than 90% of Danish drinking water is derived from groundwater. Biological in situ enhanced reductive dechlorination (ERD) has been recognized as a potentially cost-effective technology for remediating chlorinated solvents in groundwater; however, until recently, the capabilities of ERD as a groundwater treatment technology had not been rigorously demonstrated in Denmark. Consequently, the Danish Environmental Protection Agency and the former Funen County commissioned a field demonstration to quantify the performance of ERD at a Danish site. A team of bioremediation experts consisting of Geosyntec, COWI A/S, and the Danish Technical University (DTU) was selected to conduct the demonstration.