KOELLIKEN LANDFILLCLEANING UP THE FORMER HAZARDOUS WASTE LANDFILL
OUR COMPREHENSIVE CONCEPT CONVINCED THE SWISS AUTHORITIES
The former hazardous waste landfill in the Swiss canton of Argovia underwent extensive overall remediation from 2005 to 2019. Even after closure of the landfill, concentrations of some molecules in the leachate have decreased and are too low to continue the biological treatment. Nevertheless, the values for e. g. anilines, vinyl chloride or chloride benzene remain too high in relation to the legal requirements.
FILTRATION & PURIFICATION
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Elimination of the biological filter and installation of a DOLDER® PURE L5000 activated carbon filter. We did all the engineering for the integration of the filter into the existing system in partnership with Polcontec AG.
A SUCCESSFUL COMBINATION
Polcontec AG prepared all plans for the integration of the filter into the system, took over the welding work as well as the installation of the piping. We at Dolder AG supplied the activated carbon filter and took over the construction management.