title: Photofermentative production of hydrogen and poly-β-hydroxybutyrate from dark fermentation products.
abstract: The aim of this work is to investigate the hydrogen and poly-β-hydroxybutyrate (PHB) production during the photofermentative treatment of the effluent from a dark fermentation reactor fed with the organic fraction of municipal solid waste. Two different inocula, an adapted culture of Rhodobacter sphaeroides AV1b and a mixed consortium of purple non sulphur bacteria have been investigated under the same operational conditions. Different hydrogen productivities of 364 and 559NmL H2L-1were observed for the Rhodobacter sphaeroides and the mixed culture consortium tests, respectively: the consortium of PNSB resulted 1.5-fold more productive than the pure culture. On the other hand, Rhodobacter sphaeroides culture showed a higher PHB productivity (155mg PHB g COD-1) than the mixed culture (55mg PHB g COD-1). In all the tests, the concomitant H2and PHB production was associated to a dissolved COD removal higher than 80%.
authors.affiliation: Department of Civil, Architectural and Environmental Engineering, University of Naples Federico II, via Claudio 21, 80125 Naples, Italy; Department of Mathematics and Applications Renato Caccioppoli, University of Naples Federico II, via Cintia, Monte S. Angelo, 80124 Naples, Italy. Electronic address: vincenzo.luongo@unina.it.
authors.forename: Vincenzo
authors.initials: V
authors.lastname: Luongo
authors.affiliation: Department of Environmental Science and Engineering, Kathmandu University, P.O.Box 6250, Dhulikhel, Nepal.
authors.forename: Anish
authors.initials: A
authors.lastname: Ghimire
authors.affiliation: Department of Mathematics and Applications Renato Caccioppoli, University of Naples Federico II, via Cintia, Monte S. Angelo, 80124 Naples, Italy.
authors.forename: Luigi
authors.initials: L
authors.lastname: Frunzo
authors.affiliation: Department of Civil, Architectural and Environmental Engineering, University of Naples Federico II, via Claudio 21, 80125 Naples, Italy.
authors.forename: Massimiliano
authors.initials: M
authors.lastname: Fabbricino
authors.affiliation: Department of Civil, Architectural and Environmental Engineering, University of Naples Federico II, via Claudio 21, 80125 Naples, Italy.
authors.forename: Giuseppe
authors.initials: G
authors.lastname: d'Antonio
authors.affiliation: Department of Civil, Architectural and Environmental Engineering, University of Naples Federico II, via Claudio 21, 80125 Naples, Italy.
authors.forename: Francesco
authors.initials: F
authors.lastname: Pirozzi
authors.affiliation: Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, via Di Biasio 43, 03043 Cassino (FR), Italy.
authors.forename: Giovanni
authors.initials: G
authors.lastname: Esposito
mesh_terms: D019149:Bioreactors / Q000382:microbiology*; D005285:Fermentation; D006859:Hydrogen / Q000737:chemistry* / Q000378:metabolism; D006885:Hydroxybutyrates / Q000737:chemistry* / Q000378:metabolism; D011091:Polyesters / Q000737:chemistry* / Q000378:metabolism; D012037:Refuse Disposal / Q000379:methods*; D012242:Rhodobacter sphaeroides / Q000378:metabolism*; D062611:Solid Waste; D000094122:Polyhydroxybutyrates
chemical_list: D006859:Hydrogen; D006885:Hydroxybutyrates; D011091:Polyesters; D062611:Solid Waste; C003182:poly-beta-hydroxybutyrate; D000094122:Polyhydroxybutyrates
keywords: Biohydrogen; Biorefinery; Dark fermentation; Photofermentation; Poly-β-hydroxybutyrate