The Effects of Long Chain Fatty Acids (LCFA) on Sulfate Removal in An Acclimated Mixed Anaerobic Culture
Abstract:Oleic acid (OA) and stearic acid (SA), two long chaing fatty acids (LCFAs) possessing 18 carbons, were used to inhibit methanogensis in an anaerobic mixed culture converting sulfate to sulfide. Under anaerobic conditions, SRB oxidize simple organic compounds by utilizing sulfate as an electron acceptor and generate sulfide (S−2) and alkalinity. In mixed anaerobic communities, evidence has shown that sulfate reducing bacteria (SRB) outcompete aceticlastic methanogens, for acetate.The objective of the work was to assess the effects of OA and SA on sulfate reduction in mixed anaerobic batch cultures maintained at 37±2°C.
Document Type: Research Article
Publication date: October 13, 2007
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