Comparative Life Cycle Analysis of Pre-Treatment Methods in Bioethanol Production from Fruit and Vegetable Wastes
Makaleler > Tam Makale · 2026
Yazarlar: Sıdıka Tuğçe KALKAN, Tuğba Keskin Gündoğdu
Dokuz Eylül Üniversitesi Mühendislik Fakültesi Fen ve Mühendislik Dergisi, Uluslararası, 2026, cilt 28, ss 106-112
DOI: 10.21205/deufmd.2026288214
Özet
The continuous increase in global energy demand and the need for new energy resources make it imperative to find new energy sources. In the context of sustainable development goals and the circular economy, bioenergy production from waste is a promising technology. In this context, bioethanol is known as the most widely used biofuel. It is an innovative and sustainable technique for bioethanol production from fruit and vegetable wastes (FVWs) through yeast and bacteria fermentation. Life cycle assessment is a technique for understanding the environmental effect of products and processes by considering impact factors such as global warming potential, eutrophication, acidification, ozone depletion, etc. This study examines the environmental impact of 4 pre-treatment procedures (acid, heat, acid/heat, and microwave) for producing bioethanol from fruit and vegetable waste using life cycle assessment methodology. The analysis indicated that the pre-treatment approach with the lowest environmental impact is the microwave method, with a Global Warming Potential 3.9 kg CO2 eq/g ethanol while the effect of acid and heat treatment is 8.7 kg CO2 eq/g ethanol, acid pretreatment is 11.1 kg CO2 eq/g ethanol, and heat treatment is 5.1 kg CO2 eq/g ethanol. Similar results were observed in terms of terrestrial acidification, ozone depletion and freshwater eutrophication