Simultaneous biohydrogen production and wastewater treatment based on the selective enrichment of the fermentation exosystem

Boboescu, Iulian Zoltan and Gherman, Vasile Daniel and Mirel, Ion and Papp, Bernadett and Tengölics, Roland and Rákhely, Gábor and Kovács, Kornél Lajos and Kondorosi, Éva and Maróti, Gergely (2014) Simultaneous biohydrogen production and wastewater treatment based on the selective enrichment of the fermentation exosystem. International Journal of Hydrogen Energy, 39 (3). pp. 1502-1510. ISSN 0360-3199

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Abstract

Biohydrogen production from synthetic wastewater as substrate was studied in anaerobic small scale batch reactors. Enriched anaerobic mixed consortia sampled from various environments were used as parent inocula to start the bioreactors. Selective enrichments were achieved by various physical and chemical pretreatments and changes in the microbial communities were monitored by metagenomic and molecular diagnostics approaches. Experimental data showed the feasibility of biohydrogen production using synthetic wastewater as substrate. The hydrogen generation capability of the different mixed consortia is clearly dependent on the pretreatment methods. The described approach opens the possibility for an alternative way towards simultaneous wastewater treatment and renewable energy generation.

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