MITIGATION OF METHANE EMISSIONS IN A PILOT-SCALE BIOCOVER SYSTEM AT THE AV MILJO LANDFILL, DENMARK: SYSTEM DESIGN AND GAS DISTRIBUTION

摘要

AV Miljo landfill receives waste with low organic content. Methane (CH4) is produced but in too little quantities for energy utilization. The landfill gas produced at the landfill is mainly emitting through the leachate collection wells. Methane can be mitigated by a semi-passive biocover system relying on microbial methane oxidation (MO). One of the major challenges for obtaining an efficient MO in the biocover is to maintain an even distribution of gas into the active methane oxidation layer at all times. The scope of this study was to design and construct a pilot-scale biocover system with special emphasis on the gas distribution system to obtain an evenly distributed gas load.