Jump to main content
Jump to site search

Issue 7, 2012
Previous Article Next Article

Enhanced methane yields from anaerobic digestion of Arthrospira maxima biomass in an advanced flow-through reactor with an integrated recirculation loop microbial fuel cell

Author affiliations

Abstract

A semi-continuously fed continuous stirred tank reactor (CSTR), advanced flow-through anaerobic reactor (AAR) and advanced flow-through anaerobic digester with an integrated recirculation loop microbial fuel cell (ADMFC) were investigated for the production of methane using Arthrospira maxima as the sole feedstock. The study demonstrated that the inclusion of a recirculation loop MFC increased the methane yields and so energy efficiency of anaerobic digestion of Arthrospira maxima biomass. The semi-continuously fed CSTR operating under a hydraulic retention time (HRT) of 10 days and an organic loading rate (OLR) of 0.5 g DW per L−1 d−1 concluded a maximum methane yield of 90 ± 19 mL CH4 per g VS with an energy efficiency of 17.1 ± 0.8%. The continuous phase AAR and ADMFC units were operated with HRTs ranging from 2 to 4 days and organic loading rates varying from 0.5 to 3 g DW L−1 d−1. The maximum methane yield and energy efficiency concluded from the ADMFC unit was 173 ± 38 mL CH4 per g VS and 29.7 ± 6.8% respectively, whilst that of the AAR was 136 ± 16 mL CH4 per g VS and 22.1 ± 2.6%.

Graphical abstract: Enhanced methane yields from anaerobic digestion of Arthrospira maxima biomass in an advanced flow-through reactor with an integrated recirculation loop microbial fuel cell

Back to tab navigation

Publication details

The article was received on 18 Mar 2012, accepted on 14 May 2012 and first published on 14 May 2012


Article type: Paper
DOI: 10.1039/C2EE21659K
Citation: Energy Environ. Sci., 2012,5, 7996-8006

  •   Request permissions

    Enhanced methane yields from anaerobic digestion of Arthrospira maxima biomass in an advanced flow-through reactor with an integrated recirculation loop microbial fuel cell

    Alister. E. Inglesby and Adrian. C. Fisher, Energy Environ. Sci., 2012, 5, 7996
    DOI: 10.1039/C2EE21659K

Search articles by author

Spotlight

Advertisements