NOVELTY - Oxidizing methane or other volatile organic gas emanating from a landfill site, involves ducting methane or other volatile organic gas from a main gas extraction system of the site, into a container (1) containing a media (9) in which biological oxidation of the methane or volatile gas takes place; passing methane or volatile gas into the media for biological oxidation; and discharging resultant gaseous product to the environment.    USE - For oxidizing methane or other volatile gas emanating from a landfill site.    ADVANTAGE - The oxidizing method enables low level concentrations of methane or other volatile organic gas to be exhausted from the landfill site and to be oxidized before passing into the environment; uses pre-existing infrastructure of the main gas extraction system which is led to a power generator and/or flare/burner device; and uses simple diversion ducting to the container, minimizing work and expense. The air fed in the container media in a controlled manner, facilitates and provides condition for the biological oxidation process, thus eliminating the risk of explosion.    DETAILED DESCRIPTION - The support media preferably includes processed colored glass particles or beads. The biological oxidation process is started with addition of a small amount of soil for introduction of bacteria. The container is a construction formed in the ground or landfill site. The method further involves feeding air into the media, preferably by an airspace (12) provided below the media; supplying a liquid to the medium via a liquid distribution system (14), to moisturize the media; and adding nutrition to the supplied liquid to promote the oxidation of methane or volatile gas. An INDEPENDENT CLAIM is included for an apparatus/construction for biological oxidation of methane or other volatile gas emanating from landfill site, comprising the container with support media and an exhaust manifold for discharging resultant gas products to the environment, and ducting element connectable to the main gas extraction system of the site and leading into the container.    DESCRIPTION OF DRAWING(S) - The figure shows a side longitudinal sectional elevation of an apparatus for biological oxidation of methane or other volatile gas emanating from a landfill site.    container (1)    end walls of container (4, 5)    lid of container (7)    inlet manifold (8)    media (9)    exhaust manifold (10)    chimney (11)    airspace (12)    support grid (13)    liquid distribution system (14)    liquid sump.. (15)