We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Life Cycle Assessment and Techno-Economic Assessment of Anaerobic Co-Digestion: A Short Review.
- Authors
Wei En Tan; Peng Yen Liew; Phun Chien Bong, Cassendra; Yee Van Fan; Lian See Tan; Jamian, Nor Ruwaida
- Abstract
Waste-to-energy conversion such as anaerobic digestion has been widely promoted under the subsidies to decouple from fossil fuel dependence system and its inherent two-fold benefits. It could diversify the renewable energy matrix and divert the waste from the landfill. Co-digestion of two and more feedstocks could enhance bioenergy production and maximise waste recovery. However, the anticipated benefits are not absolute for all circumstances, varying across the type of co-substrate, pretreatment and other settings. The present study aims to overview the life cycle assessment (LCA) and the techno-economic assessment (TEA) of the anaerobic co-digestion processes. The results could provide an insight into the several critical parameters for sustainable co-digestion. Co-digestion of two or more feedstock is favourable since higher anaerobic digestion performances and higher profitability in TEA is shown. Cultivation of energy crops, transportation, pretreatment of feedstock and storage stage each contributes some shares to eutrophication potential (EP), acidification potential (AP), global warming potential (GWP), ozone depletion and fossil depletion. Generally, high anaerobic digestion performances and biogas upgrading can offset the negative environmental impact. Positive net present value is also observed from the co-digestion of feedstock.
- Subjects
ANAEROBIC digestion; SEWAGE sludge digestion; RENEWABLE energy sources; EUTROPHICATION; PROFITABILITY
- Publication
CET Journal - Chemical Engineering Transactions, 2021, Vol 88, p907
- ISSN
1974-9791
- Publication type
Academic Journal
- DOI
10.3303/CET2188151