title: Production of hydrogen and methane from wastewater sludge using anaerobic fermentation.
abstract: The hydrogen and methane were produced from wastewater sludge using a Clostridium strain. The original sludge and the pre-treated (acidified, sterilized, freeze/thawed, and sonicated) sludges were tested. Some pre-treatment could enhance hydrogen yield, and the other tests could enhance methane yield. Hydrogen yield followed freeze/thawed>acidified>sterilized>original sludge>sonicated; while methane yield followed sonicated>freeze/thawed>sterilized>acidified>original sludge. The production and consumption of acetate correlated closely with the trends in both yields.
authors.affiliation: Chemical Engineering Department, National Taiwan University, Taipei, Taiwan.
authors.forename: C H
authors.initials: CH
authors.lastname: Ting
authors.forename: K R
authors.initials: KR
authors.lastname: Lin
authors.forename: D J
authors.initials: DJ
authors.lastname: Lee
authors.forename: J H
authors.initials: JH
authors.lastname: Tay
mesh_terms: D019342:Acetic Acid / Q000032:analysis; D003013:Clostridium / Q000378:metabolism*; D005285:Fermentation; D005615:Freezing; D006358:Hot Temperature; D006859:Hydrogen / Q000032:analysis* / Q000302:isolation & purification; D006863:Hydrogen-Ion Concentration; D008697:Methane / Q000032:analysis* / Q000302:isolation & purification; D010472:Perchlorates / Q000737:chemistry; D011422:Propionates / Q000032:analysis; D012722:Sewage / Q000737:chemistry / Q000382:microbiology*; D013010:Sonication; D013624:Taiwan; D018505:Waste Management / Q000379:methods
chemical_list: D010472:Perchlorates; D011422:Propionates; D012722:Sewage; D006859:Hydrogen; C029658:propionic acid; D008697:Methane; D019342:Acetic Acid