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Effects of temperature, hydraulic retention time and hydrogen extraction rate on hydrogen production from the fermentation of food industry residues and manure
Linköping University, The Tema Institute, Department of Water and Environmental Studies. Linköping University, Faculty of Arts and Sciences.
2008 (English)In: International journal of hydrogen energy, ISSN 0360-3199, Vol. 33, no 3, 953-962 p.Article in journal (Refereed) Published
Abstract [en]

The production of H2 from food residues and manure has been optimised using a central composite face-centred (CCF) design. In all 17 assays were run, varying the temperature (20, 37 and 55 {ring operator} C), hydraulic retention time (2, 5 and 8 days) and N2-flow rates (5, 25 or 125 mL/min). Completely stirred tank reactors (2 L) were operated for three hydraulic retention times and hydrogen production was determined during the course of a 24-h period before termination. The concentrations of H2, CH4 and volatile fatty acids were measured, together with pH, throughout the experiment. A temperature of 55 {ring operator} C, combined with a sparging rate of 125 mL/min, and a hydraulic retention time of 2 days resulted in the highest hydrogen formation. The maximal production experimentally obtained was 16.5 mL H2/g VS. A model was calculated from the data with a squared correlation coefficient (R2) of 0.97 and a predictive power of 0.64 (Q2). © 2007 International Association for Hydrogen Energy.

Place, publisher, year, edition, pages
2008. Vol. 33, no 3, 953-962 p.
National Category
Social Sciences Interdisciplinary
URN: urn:nbn:se:liu:diva-41798DOI: 10.1016/j.ijhydene.2007.10.055Local ID: 59118OAI: diva2:262653
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2010-07-08Bibliographically approved

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Karlsson, Anna
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