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Biotechnology Letters

, Volume 12, Issue 2, pp 149–154 | Cite as

The effect of iron on anaerobic digestion

  • C A Jackson-Moss
  • J R Duncan
Article

Summary

The ability of methanogenic bacteria to adapt to high concentrations of iron was investigated using a 9l Upflow Anaerobic Sludge Blanket (UASB) reactor fed semi-continuously with a synthetic waste containing glucose as the organic carbon source. It was found that an iron concentration of up to 5 650 mg/l, which is well in excess of previously reported toxicity levels, had no inhibitory effects on anaerobic digestion, with the exception of a decrease in biogas production. The iron precipitated out and accumulated in the sludge bed of the digester, resulting in very low concentrations of iron in the digester effluent.

Keywords

Glucose Iron Toxicity Sludge Organic Chemistry 
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.

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References

  1. APHA, AWWA, WPCF (1980), Standard Methods for the Examination of Water and Wastewater. 15th ed. Washington, D.C.Google Scholar
  2. Callander, I.J. and Barford, J.P. (1983). Biotechnol. Bioeng. 25, 1959–1972.Google Scholar
  3. Hoban, D.J. and Van den Berg, L. (1979). J. Appl. Bacteriol. 47, 153–159.Google Scholar
  4. Hunter, M. (1987). J. Instit. Water Environ. Manag. 1, 77–88.Google Scholar
  5. Jackson-Moss, C.A., Duncan, J.R. and Cooper, D.R., (1988). JALCA 83, 389–395.Google Scholar
  6. Jackson-Moss, C.A., Duncan, J.R. and Cooper, D.R. (1989). Biotechnol. Lett. 11, 219–224.Google Scholar
  7. Lawrence, A.W. and McCarty, P.L. (1965). J. Wat. Poll. Control Fed. 37, 392–406.Google Scholar
  8. Lovley, D.R. and Phillips, E.J.P. (1987). Appl. Environ. Microbiol. 53, 2636–2641.Google Scholar
  9. Mosey, F.E. and Hunghes D.A. (1975). Wat. Poll. Control, 74, 18–39.Google Scholar
  10. Neilands, J.B. (1974) in “Microbial Iron Metabolism: A Comprehensive Treatise”. Neilands, J.B., ed., New York: Academic Press.Google Scholar
  11. Patel, G.B., Khan A.W. and Roth L.A. (1978). J. Appl. Bacteriol. 45, 347–356.Google Scholar
  12. Sorensen, J. (1982). Appl. Environ. Microbiol. 43, 319–324.Google Scholar

Copyright information

© Kluwer Academic Publishers 1990

Authors and Affiliations

  • C A Jackson-Moss
    • 1
    • 2
  • J R Duncan
    • 1
    • 2
  1. 1.Department of Chemistry and BiochemistryRhodes UniversityGrahamstownSouth Africa
  2. 2.Leather Industries Research InstituteGrahamstownSouth Africa

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