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Product inhibition in sludge digestion

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Abstract

Hydrogen and acetate inhibit the microbial degradation of propionate and ethanol in digesting sludge. Propionate oxidation is more sensitive than ethanol oxidation to product activities. This difference can be explained on thermodynamic grounds. It is concluded that the limiting factors for complete anaerobic mineralization of biodegradable organic matter in digesting sludge are to be sought in the boundary conditions for the exergonic oxidation of propionate. The different ecological significances of hydrogen and acetate as inhibitory agents of fatty acid degradation in sludge digestion are discussed. Hydrogen partial pressure and alkalinity are recommended as parameters in monitoring sludge digestion.

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References

  1. Bryant, M. P.: The microbiology of anaerobic degradation and methanogenesis with special reference to sewage. In: H. G. Schlegel and J. Barnea (Eds.): Microbial Energy Conversion, pp. 107–118. Verlag Erich Goltze KG, Göttingen (1976)

    Google Scholar 

  2. Bryant, M. P., E. A. Wolin, M. J. Wolin, and R. S. Wolfe:Methanobacillus omelianskii, a symbiotic association of two species of bacteria. Arch. Microbiol.59, 20–31 (1967)

    Google Scholar 

  3. Chung, K. T.: Inhibitory effects of H2 on growth ofCloslridium cellobioparum. Appl. Environ. Microbiol.31, 342–348 (1976)

    PubMed  Google Scholar 

  4. Hungate, R. E.: The Rumen and its Microbes. Academic Press, New York (1966)

    Google Scholar 

  5. Iannotti, E. L., D. Kafkewitz, M. J. Wolin, and M. P. Bryant: Glucose fermentation products ofRuminococcus albus grown in continuous culture withVibrio succinogenes; Changes caused by interspecies transfer of H2. J. Bacteriol.114, 1231–1240 (1973)

    PubMed  Google Scholar 

  6. Kaspar, H. F.: Untersuchungen zur Kopplung von Wasserstoff- und Methanbildung im Faulschlamm. Ph.D. thesis No. 5984, Swiss Federal Institute of Technology, Zürich. Bönecke-Druck, Clausthal-Zellerfeld (1977)

    Google Scholar 

  7. Neave, S. L., and A. M. Buswell: The anaerobic oxidation of fatty acids. J. Am. Chem. Soc.52, 3308–3314 (1930)

    Article  Google Scholar 

  8. Reddy, C. A., M. P. Bryant, and M. J. Wolin: Ferredoxin- and NAD-dependent hydrogen production from ethanol and formate in extracts of S organism isolated from “Methanobacillus omelianskii.” J. Bacteriol.110, 126–132 (1972)

    PubMed  Google Scholar 

  9. Scheifinger, C. C., B. Linehan, and M. J. Wolin: H2 production bySelenomonas ruminantium in the absence and presence of methanogenic bacteria. Appl. Microbiol.29, 480–483 (1975)

    PubMed  Google Scholar 

  10. Smith, P. H., and P. J. Shuba: Terminal anaerobic dissimilation of organic molecules. In: Proceedings of the Bioconv. Energy Research Convention, pp. 8–14. University of Massachusetts, Amherst (1973)

    Google Scholar 

  11. Stadtman, T. C., and H. A. Barker: Studies on the methane fermentation. IX. Tracer experiments on fatty acid oxidation by methane bacteria. J. Bacteriol.61, 67–80 (1951)

    PubMed  Google Scholar 

  12. Thauer, R. K., K. Jungermann, and K. Decker: Energy conservation in chemotrophic anaerobic bacteria. Bacteriol. Rev.41, 100–180 (1977)

    PubMed  Google Scholar 

  13. Weimer, P. J., and J. G. Zeikus: Fermentation of cellulose and cellobiose byClostridium thermocellum in the absence and presence ofMethanobacterium thermoautotrophicum. Appl. Environ. Microbiol.33, 289–297 (1977)

    PubMed  Google Scholar 

  14. Wolin, M. J.: Metabolic interactions among intestinal microorganisms. Am. J. Clin. Nutr.27, 1320–1328 (1974)

    PubMed  Google Scholar 

  15. Wolin, M. J.: Interactions between H2-producing and methane-producing species. In: H. G. Schlegel, G. Gottschalk, and N. Pfennig (Eds.): Microbial Formation and Utilization of Gases (H2, CH4, CO), pp. 168–173. Verlag Erich Goltze KG, Göttingen (1976)

    Google Scholar 

  16. Zehnder, A. J. B.: Oekologie der Methanbakterien. Ph.D. thesis No. 5716, Swiss Federal Institute of Technology, Zürich. Juris Druck und Verlag, Zürich (1976)

    Google Scholar 

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Kaspar, H.F., Wuhrmann, K. Product inhibition in sludge digestion. Microb Ecol 4, 241–248 (1977). https://doi.org/10.1007/BF02015080

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