Observations on the methane oxidation capacity of landfill soils

Adsorption and transport of methane in biochars derived from waste wood

“…The presence of interconnected pore spaces in biochars in combination with varying levels of pore sizes could have facilitated the rapid storage and capture of methane gas, thereby enhancing the adsorption capacity at higher rates of CH 4 supply. The retention times of methane within a conventional soil cover was comparatively shorter in an advection-driven transport setting, which meant that the potential for methanotrophs to intercept the methane at such environments were lower due to higher gas flow velocities (Chanton et al, 2011). This could mean that the addition of biochars to soil might reduce the potential of advective methane emission from soil covers as a result of adsorption and increased gas retention times even under high velocity conditions.…”

Modeling the effects of vegetation on methane oxidation and emissions through soil landfill final covers across different climates

“…More details about the model can be found inAbichou et al (2009), Abichou et al (2008, 2010,Chanton et al (2011) andAbichou et al (2011Abichou et al ( , 2013.…”

Spatial Patterns of Methane Oxidation and Methanotrophic Diversity in Landfill Cover Soils of Southern China

“…Landfills are ranked as one of the largest sources of anthropogenic CH 4 emissions, constituting 30% and 24% of the anthropogenic CH 4 production in 41 European countries and the USA, respectively, and making up for about 3-7% of global CH 4 emissions [12,13,23]. Landfills represent point sources of CH 4 to the atmosphere and thus are excellent targets for mitigation [8]. In large landfills, landfill gas can be collected for flaring or power generation, but for older and smaller landfills without gas collection systems, a potent option for the mitigation of emitted CH 4 from landfills is to reduce CH 4 emission in cover soils that can function as a sink for CH 4 [3].…”