Screening Growth Inhibitors of Sulfate-Reducing Bacteria and Their Effects on Methane Fermentation

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概要

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• Growth inhibitors of sulfate-reducing bacteria (SRB) which did not significantly affect methanogenesis were screened, and their effects on methane fermentation were investigated. The acreening stage was performed in vitro using two typical thermophilic anaerobic bacteria, Methanosarcina sp. (DSM 2906) as the methanogen and Desulfotomaculum nigrificans (DSM 574) as the sulfate reducer. Among eighty-eight substances tested, nine were found to be effective for inhibiting SRB growth with little or no effect on methanogenesis. Gentamicin and dodecylbenzene sulfonic acid (DBS) out of the nine effective substances were tested for their effect on the co-cultivation of two strains. These two substances were effective on co-cultivation in methane gas production. Furthermore, the effects on the methane fermentation process were investigated using laboratoryscale membrane complex anaerobic fermentation unit with an effective volume of 20l. In the fermentor study, DBS was found not to be effective in the suppression of sulfate reduction, whereas the addition of a small amount of gentamicin was effective for a long period.

• 社団法人日本生物工学会の論文
• 1989-11-25

著者

• Tanimoto Youichi

  Institute Of Technology Shimizu Construction Co. Ltd.

• Yamaguchi Makoto

  Advanced Technology Research Department Institute Of Technology Shimizu Corporation

• Okamura K

  Advanced Technology Research Department Institute Of Technology Shimizu Corporation

• Okamura Kazuo

  Institute Of Technology Shimizu Corporation

• YAMAGUCHI Makoto

  Institute for Solkid State Physics, The University of Tokyo

• TASAKI MASAHARU

  Institute of Technology, Shimizu Corporation

• MINAMI KIYOSHI

  Advanced Technology Research Department, Institute of Technology, Shimizu Corporation

• MINAMI KIYOSHI

  Institute of Technology, Shimizu Corporation

• Okamura K

  Mercian Corp. Kanagawa Jpn

• Minami K

  Shimizu Corp. Tokyo Jpn

• Minami Kiyoshi

  Institute Of Technology Shimizu Corporation

• TANIMOTO YUICHI

  Institute of Technology, shimizu Corporation

• Tasaki Masaharu

  Institute Of Technology Shimizu Corporation

• Yamaguchi Makoto

  Institute For Solid State Physics The University Of Tokyo

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