Potential for biohydrogen and methane production from olive pulp

Hariklia N. Gavala, Ioannis V. Skiadas, Birgitte Kiær Ahring, G. Lyberatos

    Research output: Contribution to journalConference articleResearchpeer-review


    The present study investigates the potential for thermophilic biohydrogen and methane production from olive pulp, which is the semi-solid residue coming from the two-phase processing of olives. It focussed on: a) production of methane from the raw olive pulp, b) anaerobic bio-production of hydrogen from the olive pulp, and c) subsequent anaerobic treatment of the hydrogen-effluent with the simultaneous production of methane. Both continuous and batch experiments were performed. The hydrogen potential of the olive pulp amounted to 1.6 mmole H-2 per g TS. The methane potential of the raw olive pulp and hydrogen-effluent was as high as 19 mmole CH4 per g TS. This suggests that olive pulp is an ideal substrate for methane production and it shows that biohydrogen production can be very efficiently coupled with a subsequent step for methane production.
    Original languageEnglish
    JournalWater Science and Technology
    Issue number1-2
    Pages (from-to)209-215
    Publication statusPublished - 2005
    Event10th IWA International Congress on Anaerobic Digestion - Montreal, Canada
    Duration: 29 Aug 20042 Sept 2004
    Conference number: 10


    Conference10th IWA International Congress on Anaerobic Digestion


    • Anaerobic digestion
    • Fermentative hydrogen production
    • Methanogenic potential
    • Olive pulp
    • Thermophilic conditions


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