Oxidation and acidification of anaerobic sediment-water systems by autoclaving

P. G. Tratnyek, N. L. Wolfe

Research output: Contribution to journalArticle

10 Scopus citations

Abstract

The effect of autoclaving on the acid/base and redox properties of anaerobic sediment slurries was determined to facilitate the interpretation of autoclaved controls in studies of environmental reduction reactions. Autoclaving decreased electrode measurements of pH by 0.26 to 0.68 units and increased electrode measurements of Eh by 34 to 94 mV. To corroborate this effect, we added redox indicators to the slurries and observed that autoclaving caused a shift in color consistent with the change in electrode measurements. Further investigation demonstrated that the observed effects are a common characteristic of autoclaving anaerobic sediment and are not limited to very restricted sediment types and are not artifacts of the way the experiments were performed.

Original languageEnglish (US)
Pages (from-to)375-378
Number of pages4
JournalJournal of Environmental Quality
Volume22
Issue number2
DOIs
StatePublished - Jan 1 1993

ASJC Scopus subject areas

  • Environmental Engineering
  • Water Science and Technology
  • Waste Management and Disposal
  • Pollution
  • Management, Monitoring, Policy and Law

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