title: Two stage anaerobic baffled reactors for bio-hydrogen production from municipal food waste.
abstract: A two-step anaerobic baffled reactor (ABR-1 and ABR-2) for H2 production from municipal food waste (MFW) was investigated at a temperature of 26 °C. In ABR-1, the average yield of H2 at an HRT of 26 h and OLR of 58 kg COD/m3 d was 250 ml H2/g VS removed. As unexpected; the H2 production in the ABR-2 was further increased up to 370 ml H2/gVS removed at a HRT of 26 h and OLR of 35 kg COD/m3 d. The total H2 yield in the two-step process was estimated to be 4.9 mol H2/mol hexose. The major part of H2 production in the ABR-1 was due to the conversion of COD(particulate) (36%). In the ABR-2 the H2 yield was mainly due to the conversion of COD in the soluble form (76%). Based on these results MFW could be ideal substrate for H2 production in a two-step ABR processes.
authors.affiliation: Egypt-Japan University of Science and Technology (E-Just), Energy Resources and Environmental Engineering Department, P.O. Box 179, New Borg El Arab City, 21934 Alexandria, Egypt. Tawfik8@hotmail.com
authors.forename: A
authors.initials: A
authors.lastname: Tawfik
authors.forename: A
authors.initials: A
authors.lastname: Salem
authors.forename: M
authors.initials: M
authors.lastname: El-Qelish
mesh_terms: D000085:Acetates / Q000378:metabolism; D000693:Anaerobiosis; D057919:Biological Oxygen Demand Analysis; D019149:Bioreactors; D001709:Biotechnology / Q000295:instrumentation* / Q000379:methods*; D002947:Cities; D005502:Food; D006859:Hydrogen / Q000378:metabolism*; D006863:Hydrogen-Ion Concentration; D014835:Volatilization; D014866:Waste Products / Q000032:analysis*
chemical_list: D000085:Acetates; D014866:Waste Products; D006859:Hydrogen