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Quantitative Analysis of Critical Factors for the Climate Impact of Landfill Mining
TU Wien, Austria.
TU Wien, Austria.
Linköping University, Department of Management and Engineering, Environmental Technology and Management. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Management and Engineering, Environmental Technology and Management. Linköping University, Faculty of Science & Engineering.
2016 (English)In: Environmental Science and Technology, ISSN 0013-936X, E-ISSN 1520-5851, Vol. 50, no 13, 6882-6891 p.Article in journal (Refereed) PublishedText
Abstract [en]

Landfill mining has been proposed as an innovative strategy to mitigate environmental risks associated with landfills, to recover secondary raw materials and energy from the deposited waste, and to enable high-valued land uses at the site. The present study quantitatively assesses the importance of specific factors and conditions for the net contribution of landfill mining to global warming using a novel, set-based modeling approach and provides policy recommendations for facilitating the development of projects contributing to global warming mitigation. Building on life-cycle assessment, scenario modeling and sensitivity analysis methods are used to identify critical factors for the climate impact of landfill mining. The net contributions to global warming of the scenarios range from -1550 (saving) to 640 (burden) kg CO(2)e per Mg of excavated waste. Nearly 90% of the results total variation can be explained by changes in four factors, namely the landfill gas management in the reference case (i.e., alternative to mining the landfill), the background energy system, the composition of the excavated waste, and the applied waste-to-energy technology. Based on the analyses, circumstances under which landfill mining should be prioritized or not are identified and sensitive parameters for the climate impact assessment of landfill mining are highlighted.

Place, publisher, year, edition, pages
AMER CHEMICAL SOC , 2016. Vol. 50, no 13, 6882-6891 p.
National Category
Other Environmental Engineering
Identifiers
URN: urn:nbn:se:liu:diva-130387DOI: 10.1021/acs.est.6b01275ISI: 000379366300036PubMedID: 27282202OAI: oai:DiVA.org:liu-130387DiVA: diva2:952735
Note

Funding Agencies|Christian Doppler Laboratory for Anthropogenic Resources; Swedish Innovation Agency VINNOVA

Available from: 2016-08-15 Created: 2016-08-05 Last updated: 2016-08-15

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