Utilization of excess sludge by acetone-butanol-ethanol fermentation employing Clostridium saccharoperbutylacetonicum N1-4 (ATCC 13564).
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.
Kobayashi
Genta
G
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
Eto
Koji
K
Tashiro
Yukihiro
Y
Okubo
Kenichi
K
Sonomoto
Kenji
K
Ishizaki
Ayaaki
A
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
D000440:Butanols; D012722:Sewage; D000096:Acetone; D000431:Ethanol; D005947:Glucose