A study of four-stage thermophilic anaerobic digestion
Abstract:A four-stage thermophilic anaerobic digestion system was used to study its potential to reduce solids, reduce volatile organic sulfur compounds (VOSC) and reduce indicator organisms. The anaerobic digesters in series showed enhanced solids and peak VOSC reduction compared to a single stage thermophilic anaerobic digester (control) operated at same total sludge retention time. However, the indicator organism reduction was similar to the control digester. All of the indicator organism reduction occurred in the first two reactors with no additional reduction in the third and fourth reactors.
Document Type: Research Article
Publication date: January 1, 2008
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