title: Anaerobic co-digestion of municipal food waste and sewage sludge: A comparative life cycle assessment in the context of a waste service provision.
abstract: This study used life cycle assessment to evaluate the environmental impact of anaerobic co-digestion (AcoD) and compared it against the current waste management system in two case study areas. Results indicated AcoD to have less environmental impact for all categories modelled excluding human toxicity, despite the need to collect and pre-treat food waste separately. Uncertainty modelling confirmed that AcoD has a 100% likelihood of a smaller global warming potential, and for acidification, eutrophication and fossil fuel depletion AcoD carried a greater than 85% confidence of inducing a lesser impact than the current waste service.
authors: Department of Civil Environmental and Chemical Engineering, RMIT University, Melbourne 3000, Australia; Manufacturing Flagship, Commonwealth Scientific and Industrial Research Organisation, Clayton, 3169, Australia. Electronic address: s3137258@student.rmit.edu.au.
authors: Joel
authors: J
authors: Edwards
authors: Department of Civil Environmental and Chemical Engineering, RMIT University, Melbourne 3000, Australia.
authors: Maazuza
authors: M
authors: Othman
authors: Department of Aerospace, Mechanical and Manufacturing Engineering, RMIT University, Melbourne 3000, Australia.
authors: Enda
authors: E
authors: Crossin
authors: Department of Civil Environmental and Chemical Engineering, RMIT University, Melbourne 3000, Australia; Manufacturing Flagship, Commonwealth Scientific and Industrial Research Organisation, Clayton, 3169, Australia.
authors: Stewart
authors: S
authors: Burn
mesh_terms: D000693:Anaerobiosis; D019149:Bioreactors / Q000382:microbiology; D002947:Cities; D004063:Digestion; D005502:Food; D006801:Humans; D008962:Models, Theoretical; D059027:Recycling / Q000379:methods; D012722:Sewage / Q000737:chemistry*; D064091:Waste Disposal Facilities; D018505:Waste Management / Q000379:methods*; D014866:Waste Products
chemical_list: D012722:Sewage; D014866:Waste Products
keywords: Anaerobic co-digestion; Biogas; Food waste; Life cycle assessment; Municipal solid waste