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HYSYDAYS<br>1st World Congress of Young Scientists on Hydrogen Energy Systems

ISBN:
1-56700-230-7 (Print)

NATURAL SELECTION OF HYDROGEN FORMING BACTERIA IN ANAEROBIC DIGESTION

Alberto Quaglia
HySyLab - Environment, Italy

Bernardo Ruggeri
Dipartimento di Scienza dei Materiali e Ingegneria Chimica - Politecnico di Torino, Italy

Abstract

At the present time 80% of the energy demand is covered by fossil fuels, with many dangerous consequences such as geopolitical tensions for the possession of oilfields and pollution.
Hydrogen is commonly considered as a "clean" alternative to fossil fuels, but in order to achieve a sustainable hydrogen society new production processes should be developed.
At the moment four different bio-production processes have been observed: Biophotolysis, Photofermentation, Bio- Reforming and Anaerobic Hydrogen Fermentation (AHF).
In this work AHF is suggested as one of the most interesting bio-production processes, owing to its higher productivity, its stability, its independence from night-day cycle and mainly its power to produce energy-rich streams from wastewater and waste materials.