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Remote sensing of methane and nitrous oxide fluxes from waste incineration
Linköping University, Department of Thematic Studies, Tema Environmental Change. Linköping University, Faculty of Arts and Sciences.ORCID iD: 0000-0003-1107-3929
Linköping University, Department of Thematic Studies, Tema Environmental Change. Linköping University, Faculty of Arts and Sciences.ORCID iD: 0000-0003-0038-2152
2018 (English)In: Waste Management, ISSN 0956-053X, E-ISSN 1879-2456, Vol. 75, p. 319-326Article in journal (Refereed) Published
Abstract [en]

Incomplete combustion processes lead to the formation of many gaseous byproducts that can be challenging to monitor in flue gas released via chimneys. This study presents ground-based remote sensing approaches to make greenhouse gas (GHG) flux measurements of methane (CH4) and nitrous oxide (N2O) from a waste incineration chimney at distances of 150-200 m. The study found emission of N2O (corresponding to 30-40 t yr(-1)), which is a consequence of adding the reduction agent urea to decrease NOx emissions due to NOx regulation; a procedure that instead increases N2O emissions (which is approximately 300 times more potent as a GHG than CO2 on a 100-year time scale). CH4 emissions of 7-11 t yr(-1) was also detected from the studied chimney despite the usage of a high incineration temperature. For this particular plant, local knowledge is high and emission estimates at corresponding levels have been reported previously. However, emissions of CH(4 )are often not included in GHG emission inventories for waste incineration. This study highlights the importance of monitoring combustion processes, and shows the possibility of surveying CH4 and N2O emissions from waste incineration at distances of several hundred meters. (C) 2018 Elsevier Ltd. All rights reserved.

Place, publisher, year, edition, pages
PERGAMON-ELSEVIER SCIENCE LTD , 2018. Vol. 75, p. 319-326
Keywords [en]
Waste incineration; Greenhouse gas emissions; Methane; Nitrous oxide; Remote measurements; Hyperspectral imaging
National Category
Environmental Sciences
Identifiers
URN: urn:nbn:se:liu:diva-148258DOI: 10.1016/j.wasman.2018.01.031ISI: 000432235200032PubMedID: 29397278OAI: oai:DiVA.org:liu-148258DiVA, id: diva2:1213357
Note

Funding Agencies|Knut and Alice Wallenberg Foundation [KAW 2010.0126]; Swedish Research Council VR [VR 2012-48]

Available from: 2018-06-04 Created: 2018-06-04 Last updated: 2018-10-05

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