Fig. 5From: Characterization of sulfur oxidizing bacteria related to biogenic sulfuric acid corrosion in sludge digestersFinal sulfate concentration in pure A. thiooxidans liquid batch culture (isolate Dg E-1) over 42 days. DSMZ medium 35 with an initial pH value of 4.5 and elemental sulfur as sole energy source was used. Error of the method was indicated by the manufacturer with 10 %Back to article page