Journal
BIORESOURCE TECHNOLOGY
Volume 114, Issue -, Pages 168-178Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2012.03.040
Keywords
Food waste; Card packaging; Cattle slurry; Ammonia; Specific methane production
Funding
- UK Government's Department for Environment Food and Rural Affairs (Defra) [WR1208]
- EU [241334]
Ask authors/readers for more resources
Cattle slurry and card packaging were used to improve the operational stability of food waste digestion, with the aim of reducing digestate total ammoniacal nitrogen concentrations compared to food waste only. Use of cattle slurry could have major environmental benefits through reducing greenhouse gas emissions associated with current management practices; whilst card packaging is closely linked to food waste and could be co-collected as a source segregated material. Both options increase the renewable energy potential whilst retaining organic matter and nutrients for soil replenishment. Co-digestion allowed higher organic loadings and gave a more stable process. A high ammonia inoculum acclimated more readily to cattle slurry than card packaging, probably through supplementation by trace elements and micro-organisms. Long-term operation at a 75-litre scale showed a characteristic pattern of volatile fatty acid accumulation in mono-digestion of food waste, and allowed performance parameters to be determined for the co-digestion substrates. (C) 2012 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available