Abstract
In effluents containing large amounts of sulfate, high sulfide levels are produced in anaerobic digestion by sulfate reducing bacteria (SRB). The undesirable effect of sulfides on methanogenic reactors is widely known1. This effect can be minimized if the process is performed in a two phase anaerobic reactor, where produced sulfides are precipitated after the first phase (acidogenic)2. Therefore, this phase must be operated in order to obtain maximum sulfate removal and to produce the more favourable intermediates for methanogenic bacteria.
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References
I.W.Koster, A.L.Rinzema De Vegt, G. Lettinga, Sulfide inhibition of the methanogenic activity of granular sludge at various pH levels, Water Res.20: 1561 (1986).
M.A.M.Reis, L.M.D., Goncalves, M.J.T., Carrondo, Sulfate removal in the acidogenic phase anaerobic digestion, Environ. Technol. Letters 9:755 (1988).
J.R.Postgate, The sulfate reducing bacteria, 2nd ed., Cambridge University press, Cambridge (1984).
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© 1990 Plenum Press
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Reis, M.A.M., Lemos, P.C., Almeida, J., Carrondo, M.T.J. (1990). Effect of Sulfide and Reactor Operational Parameters on Sulfate Reducing Bacteria. In: Bélaich, JP., Bruschi, M., Garcia, JL. (eds) Microbiology and Biochemistry of Strict Anaerobes Involved in Interspecies Hydrogen Transfer. Federation of European Microbiological Societies Symposium Series, vol 54. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-0613-9_59
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DOI: https://doi.org/10.1007/978-1-4613-0613-9_59
Publisher Name: Springer, Boston, MA
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