title: Utilization of excess sludge by acetone-butanol-ethanol fermentation employing Clostridium saccharoperbutylacetonicum N1-4 (ATCC 13564).
abstract: Clostridium saccharoperbutylacetonicum N1-4 could not grow or produce butanol in excess sludge medium. However, adding glucose to the excess sludge medium resulted in a specific growth rate and butanol productivity of 0.29 h(-1) and 0.55 g/l/h, respectively, and the final butanol production reached 9.3 g/l. Since the content of suspended solids in medium reduced to less than 50% of the initial content during acetone-butanol-ethanol (ABE) fermentation, the sludge was quantitatively decreased by this fermentation employing this strain.
authors.affiliation: Laboratory of Microbial Technology, Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan. gentak@agr.kyushu-u.ac.jp
authors.forename: Genta
authors.initials: G
authors.lastname: Kobayashi
authors.forename: Koji
authors.initials: K
authors.lastname: Eto
authors.forename: Yukihiro
authors.initials: Y
authors.lastname: Tashiro
authors.forename: Kenichi
authors.initials: K
authors.lastname: Okubo
authors.forename: Kenji
authors.initials: K
authors.lastname: Sonomoto
authors.forename: Ayaaki
authors.initials: A
authors.lastname: Ishizaki
mesh_terms: D000096:Acetone / Q000378:metabolism*; D019149:Bioreactors / Q000382:microbiology*; D000440:Butanols / Q000378:metabolism*; D018929:Cell Culture Techniques / Q000379:methods*; D003013:Clostridium / Q000145:classification / Q000254:growth & development / Q000378:metabolism*; D000431:Ethanol / Q000378:metabolism*; D005947:Glucose / Q000378:metabolism; D012722:Sewage / Q000382:microbiology*; D013045:Species Specificity; D018508:Water Purification / Q000379:methods
chemical_list: D000440:Butanols; D012722:Sewage; D000096:Acetone; D000431:Ethanol; D005947:Glucose