Abstract
A two-layered diffusion model was applied to the uptake process of trace gases as CO, H2, and CH4 which are utilized by soil microorganisms or enzymes assuming that its uptake obey first-order kinetics about its concentration. Analytical solutions for mono-layered model exhibit that the physical property as gas diffusivity in soil is more important for uptake process than emission process. The numerical simulation shows that the deposition of CO, H2, and CH4 are limited by the combination of transport process and the localization of the soil uptake zone, within 0.06cm s−1 for CO and 0.1cm s−1 for H2, respectively, which are in reasonable consistence with field measurements.
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© 2000 Springer Science+Business Media Dordrecht
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Yonemura, S., Yokozawa, M., Kawashima, S., Tsuruta, H. (2000). Trace Gas Absorption by Soil. In: Crolet, J.M. (eds) Computational Methods for Flow and Transport in Porous Media. Theory and Applications of Transport in Porous Media, vol 17. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-1114-2_25
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DOI: https://doi.org/10.1007/978-94-017-1114-2_25
Publisher Name: Springer, Dordrecht
Print ISBN: 978-90-481-5440-1
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