Peer-Reviewed Journal Details
Mandatory Fields
Browne, JD,Allen, E,Murphy, JD
2014
September
Applied Energy
Assessing the variability in biomethane production from the organic fraction of municipal solid waste in batch and continuous operation
Validated
WOS: 53 ()
Optional Fields
Anaerobic digestion Food waste BMP CSTR ANAEROBIC-DIGESTION FOOD WASTE SWINE MANURE AMMONIA INHIBITION
128
307
314
This paper examines the variability in biomethane potential from the organic fraction of municipal solid waste depending on source of origin. Eight organic waste streams were examined for biochemical methane potential (BMP). Specific methane yields of between 274 and 368 mL CH4 g VS-1 for household waste and 491-535 mL CH4 g VS-1 for commercial waste were achieved. Inclusion of garden waste reduced methane yields. A continuous trial on commercial food waste produced an average of 560 29 mL CH4 g VS-1 at a moderate organic loading rate (OLR) of 2 kg VS m(-3) day(-1) with a hydraulic retention time (HRT) of 30 days. Raising the OLR to 4 kg VS m(-3) day(-1) led to a reduction in specific methane yield. The low carbon to nitrogen (C:N) ratio of commercial food waste (14.4) led to process instability due to total ammonia nitrogen levels in excess of 7000 mg L-1 towards the end of the trial. (C) 2014 Elsevier Ltd. All rights reserved.
10.1016/j.apenergy.2014.04.097
Grant Details