Inhibition of methanogenesis from acetate by Cr+3 and ammonia

descriptionPublicationkeyboard_double_arrow_right Article 01 Feb 1994 English Publisher:Springer Science and Business Media LLCJournal:Biotechnology Letters, volume 16, pages 195-200 (issn: 0141-5492, eissn: 1573-6776,

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Authors: Matilde Soubes; Luc�a Mux�; Ana Fern�ndez; Silvana Tarlera; Marcelo Queirolo;

doi: 10.1007/bf01021670

Inhibition of methanogenesis from acetate by Cr+3 and ammonia

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Abstract

4000 mg/l of N−NH4 + and 12 mg/l or Cr+3 caused a 50% reduction in aceticlastic methanogenic activity of an anaerobic sludge.Methanosarcina-like andMethanothrix-like cells were differently affected by the toxicants. The inhibition caused by Cr+3 was reverted by its removal, by addition of iron and by increasing the biomass.

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