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Heat production in municipal and industrial waste as revealed by isothermal microcalorimetry
RISE Research Institutes of Sweden, Safety and Transport, Safety.ORCID iD: 0000-0001-7163-1692
RISE Research Institutes of Sweden, Safety and Transport, Safety.ORCID iD: 0000-0001-6758-6067
KTH Royal Institute of Technology, Sweden.
Waters Sverige AB, Sweden.
2022 (English)In: Journal of thermal analysis and calorimetry (Print), ISSN 1388-6150, E-ISSN 1588-2926, Vol. 147, no 15, p. 8271-Article in journal (Refereed) Published
Abstract [en]

Self-ignited fires at municipal solid waste (MSW) storage sites are relatively common. The minimization of the phenomenon of self-heating in the waste can reduce the risks for smouldering combustion. The purpose of this work was to develop a method that can be used to measure and characterize the heat production in MSW. The method is based on isothermal heat conduction microcalorimetry (IMC). The heat production in MSW was determined based on sampling from two sites in two different geographical locations in Sweden. Both the original waste and milled/homogenised waste were tested. The heat production was measured at different temperatures together with gas analysis using micro-gas chromatography. The activity in the waste, in terms of its heat flow, increased when the temperature increased up to 60 °C and decreased at higher temperatures, e.g., 70 and 80 °C. The consumption of oxygen and the production of carbon dioxide, together with the heat production, indicated that aerobic metabolism was responsible for the heat production. This is further strengthened by the marginal heat production observed for ultraviolet treated waste. The results showed that IMC is a valuable tool for characterising the self-heating in municipal and industrial waste. © 2021, The Author(s).

Place, publisher, year, edition, pages
Springer Science and Business Media B.V. , 2022. Vol. 147, no 15, p. 8271-
Keywords [en]
Fire, Heat production, Microcalorimetry, Microorganisms, Municipal waste, Self-heating
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:ri:diva-57968DOI: 10.1007/s10973-021-11117-2Scopus ID: 2-s2.0-85120556310OAI: oai:DiVA.org:ri-57968DiVA, id: diva2:1626965
Note

Funding details: Energimyndigheten; Funding text 1: The work was funded by the Swedish Energy Agency (as part of the strategic innovation programme RE:Source), RISE Research Institute of Sweden, SYSAV, Tekniska Verken i Linköping, and Borås Energi & Miljö. Their contributions are gratefully acknowledged.

Available from: 2022-01-12 Created: 2022-01-12 Last updated: 2023-05-26Bibliographically approved

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Pushp, MohitLönnermark, Anders

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