title: Fermentative hydrogen gas production using biosolids pellets as the inoculum source.
abstract: Biosolids pellets produced from anaerobically digested municipal wastewater sludge by drying to greater than 90% total solids at 110-115 degrees C for at least 75 min, were tested for their suitability as an inoculum source for fermentative hydrogen production. The hydrogen recoveries (mg gaseous H(2) produced as COD/mg added substrate COD) for glucose-fed batch systems were equal, 20.2-21.5%, between biosolids pellets and boiled anaerobic digester sludge as inoculum sources. Hydrogen recoveries from primary sludge were 2.4% and 3.5% using biosolids pellets and boiled sludge, respectively, and only 0.2% and 0.8% for municipal wastewater. Biosolids pellets should be a practical inoculum source for fermentative hydrogen reactors, although the effectiveness will depend on the wastewater treated.
authors.affiliation: Hydromantis Inc., 1 James Street South, Suite 1601, Hamilton, Ont., Canada L8P 4A5.
authors.forename: Youssouf
authors.initials: Y
authors.lastname: Kalogo
authors.forename: David M
authors.initials: DM
authors.lastname: Bagley
mesh_terms: D000693:Anaerobiosis; D005285:Fermentation; D005947:Glucose; D006859:Hydrogen / Q000378:metabolism*; D008697:Methane / Q000378:metabolism; D012722:Sewage; D013379:Substrate Specificity; D014865:Waste Disposal, Fluid
chemical_list: D012722:Sewage; D006859:Hydrogen; D005947:Glucose; D008697:Methane