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Low pH as an inhibiting factor in the transition from mesophilic to thermophilic phase in composting
Swedish University of Agricultural Sciences, Sweden.ORCID iD: 0000-0001-5979-9521
2004 (English)In: Bioresource Technology, Vol. 95, no 2, 145-150 p.Article in journal (Refereed) PublishedText
Abstract [en]

During composting of household waste, the acidity of the material affects the process during the initial phase of rising temperature. In this study, the effects of temperature (36-46°C) and pH (4.6-9.2) on the respiration rate during the early phase of composting were investigated in two different composts. A respiration method where small compost samples were incubated at constant temperature was used. The respiration rate was strongly reduced at 46°C and pH below 6, compared to composts with a higher pH or lower temperature. The combination of high temperature and low pH is a possible adverse factor in large-scale composting of food waste.

Place, publisher, year, edition, pages
Elsevier, 2004. Vol. 95, no 2, 145-150 p.
National Category
Other Environmental Engineering
URN: urn:nbn:se:kth:diva-182613DOI: 10.1016/j.biortech.2004.01.016ISI: 000223517800005ScopusID: 2-s2.0-3142528487OAI: diva2:905219

QC 20160316

Available from: 2016-02-22 Created: 2016-02-22 Last updated: 2016-03-16Bibliographically approved

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Sundberg, Cecilia
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