Summary

European regulations require landfill gas to be monitored and managed to reduce methane emissions, which can be done using gas collection and biocover systems. There is minimal guidance on how to monitor and assess mitigation actions and as a result the efficiency of mitigation systems is seldom evaluated. This project determined gas collection efficiencies at 23 Danish landfills and compared collection efficiencies with literature values and potential limit values. The research showed that gas collection efficiency could be improved by reducing gas leaks from installations, improving gas collection, securing coverage of landfill surfaces, and repairing damaged cover soil.

Partners

• Technical University of Denmark