Biotechnology Letters

, Volume 8, Issue 3, pp 203–208 | Cite as

Mass spectrometric control of the thermophilic anaerobic digestion process based on levels of dissolved hydrogen

  • T. N. Whitmore
  • D. Lloyd


The continuous and simultaneous monitoring of dissolved CH4 and H2 in samples from a laboratory scale thermophilic anaerobic digester contents by use of a silicone rubber-covered probe has enabled control of methanogenesis: regulation of the hydrogen signal in a closed feedback loop was by controlled addition of the carbon source. Dissolved hydrogen became apparent in this system at a lower loading rate than was obtained for a mesophilic anaerobic digestion system (Whitmoreet al., 1986). Controlling the supply of glucose (25 mM) at a dilution rate of 0.02 h−1 and at progressively lower preset hydrogen levels allowed methanogenesis to be significantly prolonged before inhibition of the process occurred.


Anaerobic Digestion Dilution Rate Laboratory Scale Methanogenesis Loading Rate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Duarte, A.C. andAnderson, G.K. (1982).Water Sci. Technol. 14, 749–763.Google Scholar
  2. Jewell, W.J., Switzenbaum, M.S. andMorris, J.W. (1981)J. Water Pollut. Control Fed. 53, 482–490.Google Scholar
  3. Kasper, H.F. andWuhrmann, K. (1978).Appl. Environ. Microbiol. 36, 1–7.Google Scholar
  4. McInerney, M.J., Bryant, M.P. andPfennig, M. (1979).Arch. Microbiol. 122, 129–135.Google Scholar
  5. Mosey, F.E. (1982).Water Pollut. Cont. 81, 540–550.Google Scholar
  6. Whitmore, T.N., Jones, G. andLloyd, D. (1986).Appl. Microbiol. Biotechnol. (submitted).Google Scholar
  7. Whitmore, T.N., Lazzari, M. andLloyd, D. (1985).Biotechnol. Lett. 4, 283–288.Google Scholar
  8. Wilhelm, E., Battino, R. andWilcock, R.J. (1977).Chem. Rev. 77, 219–250.Google Scholar
  9. Zeikus, J.G. In:Anaerobic Digestion. (Stafford, D.A. et al., Eds.) Applied Science Publishers Ltd., London, pp. 61–87, 1980.Google Scholar

Copyright information

© Science and Technology Letters 1986

Authors and Affiliations

  • T. N. Whitmore
    • 1
  • D. Lloyd
    • 1
  1. 1.Department of MicrobiologyUniversity CollegeCardiffWales, UK

Personalised recommendations