Affiliation:
1. Environmental Engineering and Science, Department of Civil Engineering, Stanford University, Stanford, California 94305
Abstract
2-Bromoethanesulfonic acid (BESA) and 2-chloroethanesulfonic acid (CESA) have been reported to be potent inhibitors of methane formation during methanogenic decomposition in batch cultures. However, in a laboratory-scale continuous-flow methanogenic fixed-film column containing a predominance of acetate-decarboxylating methanogens, BESA at 6 × 10
−4
M produced only a 41% inhibition of acetate utilization, and CESA at 5.4 × 10
−4
M produced a 37% inhibition of acetate utilization. BESA and CESA concentrations were not monitored in the effluent, so their fate is unknown. The organisms in the column were capable of degrading trace halogenated aliphatic compounds (∼30 μg/liter) with acetate (100 mg/liter) as the primary substrate. Previous exposure of the cells to halogenated organic compounds may have conferred resistance to BESA and CESA. Degradation of the inhibitor compounds is another possible explanation for the observed effects.
Publisher
American Society for Microbiology
Subject
Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology
Reference8 articles.
1. Transformations of 1- and 2-carbon halogenated aliphatic organic compounds under methanogenic conditions;Bouwer E. J.;Appl. Environ. Microbiol.,1983
2. Gunsalus R. D. Eirich J. Romesser W. Balch S. Shapiro and R. S. Wolfe. 1976. Methyl transfer and methane formation p. 191-198. In G. Schlegel G. Gottschalk and D. Pfennig (ed.) Microbial production and utilization of gases (H2 CH4 CO). Goltze Gottingen Germany.
3. Methanogenic decomposition offerulic acid, a model lignin derivative;Healy J. B.;Appl. Environ. Microbiol.,1980
4. Metcalf and Eddy Inc. 1979. Wastewater engineering: treatment disposal reuse p. 459. McGraw-Hill Book Co. New York.
5. Microbial formation of ethane in anoxic estuarine sediments;Oremland R. S.;Appl. Environ. Microbiol.,1981
Cited by
30 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献