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An integrated biohydrogen refinery: Synergy of photofermentation, extractive fermentation and hydrothermal hydrolysis of food wastes

Redwood, MD and Orozco, RL and Majewski, AJ and Macaskie, LE (2012) An integrated biohydrogen refinery: Synergy of photofermentation, extractive fermentation and hydrothermal hydrolysis of food wastes. Bioresource Technology.

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URL of Published Version: http://dx.doi.org/10.1016/j.biortech.2012.05.040

Identification Number/DOI: 10.1016/j.biortech.2012.05.040

An Integrated Biohydrogen Refinery (IBHR) and experimental net energy analysis are reported. The IBHR converts biomass to electricity using hydrothermal hydrolysis, extractive biohydrogen fermentation and photobiological hydrogen fermentation for electricity generation in a fuel cell. An extractive fermentation, developed previously, is applied to waste-derived substrates following hydrothermal pre treatment, achieving 83 99% biowaste destruction. The selective separation of organic acids from waste-fed fermentations provided suitable substrate for photofermentative hydrogen production, which enhanced the gross energy generation up to 11-fold. Therefore, electrodialysis provides the key link in an IBHR for ’waste to energy’. The IBHR compares favourably to 'renewables’ (photovoltaics, on-shore wind, crop-derived biofuels) and also emerging biotechnological options (microbial electrolysis) and anaerobic digestion.

Type of Work:Article
Date:18 May 2012 (Publication)
School/Faculty:Colleges (2008 onwards) > College of Life & Environmental Sciences
Department:Biosciences
Additional Information:

Supplementary information is available at http://epapers.bham.ac.uk/1554/

Further information is available at www.birmingham.ac.uk/biohydrogen

Subjects:Q Science (General)
Institution:University of Birmingham
Copyright Holders:The Authors
ID Code:1181
Refereed:YES
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