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Bacterial methane oxidation in landfill cover layers ‐ a coupled FE multiphase description
Author(s) -
Sindern Andrea,
Ricken Tim,
Bluhm Joachim,
Widmann Renatus,
Denecke Martin
Publication year - 2013
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201310092
Subject(s) - methane , anaerobic oxidation of methane , landfill gas , greenhouse gas , isothermal process , cover (algebra) , carbon dioxide , layer (electronics) , environmental science , porous medium , porosity , chemistry , environmental chemistry , environmental engineering , chemical engineering , waste management , engineering , geology , thermodynamics , mechanical engineering , physics , organic chemistry , oceanography
Landfill gas is composed of methane (CH 4 ) and (CO 2 ) at a ratio of about (60% – 40%), whereby the impact of methane on the greenhouse effect is about 25 times higher than that of carbon dioxide. Bacterial methane oxidation, taking place in the landfill cover layer, helps to reduce the climate active emissions from landfill sites. This contribution presents a theoretical and numerical approach to model the coupled processes of bacterial methane oxidation. An isothermal biphasic model based on the Theory of Porous Media (TPM) and Mixture Theory is introduced as well as the coupled finite element (FE) calculation concept. (© 2013 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)