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Life Cycle Analysis of Energy Production from Food Waste through Anaerobic Digestion, Pyrolysis and Integrated Energy System

descriptionPublicationkeyboard_double_arrow_right Article , Journal , Other literature type 05 Oct 2017 Spain Publisher:MDPI AGJournal:Sustainability, volume 9, page 1,804 (eissn: 2071-1050,

Authors: Suraj Adebayo Opatokun; Ana Lopez-Sabiron; German Ferreira; Vladimir Strezov;

doi: 10.3390/su9101804

Life Cycle Analysis of Energy Production from Food Waste through Anaerobic Digestion, Pyrolysis and Integrated Energy System

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Abstract

The environmental performance of industrial anaerobic digestion (AD), pyrolysis, and integrated system (AD sequence with pyrolysis) on food waste treatment were evaluated using life cycle assessment. The integrated treatment system indicated similar environmental benefits to AD with the highest benefits in climate change and water depletion in addition to the increased energy generation potential and the production of valuable products (biochar and bio-oil). Pyrolysis results illustrated higher impact across water, fossil fuel, and mineral depletion, although still providing a better option than conventional landfilling of food waste. The dewatering phase in the AD process accounted for 70% of the treatment impact while the pre-treatment of the food waste was responsible for the main burden in the pyrolysis process. The study indicated that the three treatment options of food waste management are environmentally more favorable than the conventional landfilling of the wastes.

Country

Spain

Related Organizations

Center for Research Resources and Energy Consumption
Spain
Macquarie University
Australia
University of Zaragoza
Spain
Macquarie University
Australia

Keywords

Environmental effects of industries and plants, TJ807-830, life cycle assessment; environment; End-of-Life (EOL); food waste; digestion; pyrolysis, digestion, pyrolysis, TD194-195, Renewable energy sources, Environmental sciences, life cycle assessment, food waste, End-of-Life (EOL), GE1-350, environment

Impact byBIP!

	citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	65
	popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.	Top 1%
	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Top 10%
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Top 10%