Bio-hydrogen production in an EGSB reactor under mesophilic, thermophilic and hyperthermophilic conditions

摘要

Mesophilic, thermophilic and hyperthermophilic bio-hydrogen production with an expandedgranular sludge blanket (EGSB) fed with glucose and arabinose, without methane production, wasdemonstrated. Homoacetogenesis was observed on reactor when operated under mesophilic (37ºC)conditions but not under thermophilic (55ºC) and hyper-thermophilic conditions (70ºC). It wasalso found that under thermophilic and hyper-thermophilic conditions glucose is preferentiallyconsumed than arabinose.