Abstract
Landfill has become one of the main atmosphere methane sources. Biocover systems were proposed to mitigate methane emission by utilizing the biodegradation existing in landfill cover soils. The methane emission from landfill should be estimated by considering the methane oxidation and migration process in the biocover system. For the typical biocover system consisting of a gas distribution layer and a methane oxidation layer, an analytical model is proposed to investigate the mechanism of methane emission. The model is effectively verified against the published experiment results. The influence of effective diffusivity of each layer and advection is investigated. The results reveal that the existing single-layer analytical model cannot be applied to double-layer biocover. Putting soil with high effective diffusivity on that with lower value can better mitigate methane emission from cover. The upward advection in cover soils has significant negative effect on mitigating methane emission and should be strictly controlled.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Scheutz C, Kjeldsen P, Bogner JE, De Visscher A, Gebert J, Hilger HA, Huber-Humer M, Spokas K (2009) Microbial methane oxidation processes and technologies for mitigation of landfill gas emissions. Waste Manag Res 27:409–455
Huber-Humer M, Gebert J, Hilger H (2008) Biotic systems to mitigate landfill methane emissions. Waste Manag Res 26:33–46
Yao Y, Su Y, Wu Y, Liu W, He R (2015) An analytical model for estimating the reduction of methane emission through landfill cover soils by methane oxidation. J Hazard Mater 283:871–879
De Visscher A, Thomas D, Boeckx P, Van Cleemput O (1999) Methane oxidation in simulated landfill cover soil environments. Environ Sci Technol 33:1854–1859
Yao Y, Wu Y, Tang M, Wang Y, Wang J, Suuberg EM, Jiang L, Liu J (2015) Evaluation of site-specific lateral inclusion zone for vapor intrusion based on an analytical approach. J Hazard Mater 298:221–231
Acknowledgments
Much of the work described in this paper was supported by the National Natural Science Foundation of China under Grant Nos. 41572265 and 41661130153, the Shanghai Shuguang Program under Grant No. 16SG19, the National Program for Support of Top-Notch Young Professionals, and the Newton Advanced Fellowship of the Royal Society under Grant No. NA150466. The writers would like to greatly acknowledge all these financial supports and express their most sincere gratitude.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2019 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Feng, SJ., Zhu, ZW., Chen, HX. (2019). An Analytical Model for Methane Oxidation and Migration in Double-Layer Landfill Biocover. In: Zhan, L., Chen, Y., Bouazza, A. (eds) Proceedings of the 8th International Congress on Environmental Geotechnics Volume 2. ICEG 2018. Environmental Science and Engineering(). Springer, Singapore. https://doi.org/10.1007/978-981-13-2224-2_12
Download citation
DOI: https://doi.org/10.1007/978-981-13-2224-2_12
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-13-2223-5
Online ISBN: 978-981-13-2224-2
eBook Packages: Earth and Environmental ScienceEarth and Environmental Science (R0)