Anaerobic co-digestion of sewage sludge with switchgrass: Experimental and kinetic evaluation

Sewage sludge removal via anaerobic digestion provides energy production in addition to waste minimization. Several strategies, such as anaerobic co-digestion, were developed to increase energy production from sewage sludge by improving C/N balance. In this study, anaerobic co-digestion of sewage sl...

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Published inEnergy sources. Part A, Recovery, utilization, and environmental effects Vol. 38; no. 1; pp. 15 - 21
Main Author Ciggin, A. S.
Format Journal Article
LanguageEnglish
Published Taylor & Francis 01.01.2016
Subjects
Anaerobic co-digestion
Anaerobic digestion
anaerobic kinetic
biochemical methane potential
Biogas
Biomass
Crops
Methane
Minimization
Mixing ratios
Sewage sludge
switchgrass
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Summary:Sewage sludge removal via anaerobic digestion provides energy production in addition to waste minimization. Several strategies, such as anaerobic co-digestion, were developed to increase energy production from sewage sludge by improving C/N balance. In this study, anaerobic co-digestion of sewage sludge with an energy crop, namely switchgrass, was evaluated. As a result of studies implemented at different mixing ratios, maximum methane production was measured as 272.06 mLCH 4 /gVS at the mixing ratio of 0.4:0.6 (sewage sludge:switchgrass). According to modified kinetic models used for interpretation of synergetic and/or antagonistic effects, anaerobic co-digestion has a synergetic effect on biogas production from both biomass.
Bibliography:ObjectType-Article-1
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content type line 23
ISSN:1556-7036
1556-7230
DOI:10.1080/15567036.2015.1060549