Life cycle environmental impacts of substituting food wastes for traditional anaerobic digestion feedstocks
| Autor: | María Natividad Pérez-Camacho, Robin Curry, Thomas Cromie |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
020209 energy
Bioengineering 02 engineering and technology Environment 010501 environmental sciences 01 natural sciences Waste Management Biogas Bioenergy Environmental protection SDG 13 - Climate Action 0202 electrical engineering electronic engineering information engineering SDG 7 - Affordable and Clean Energy Waste Management and Disposal Life-cycle assessment Engineering(all) 0105 earth and related environmental sciences Life-cycle-analysis Anaerobic-digestion Food-waste Circular economy SDG 8 - Decent Work and Economic Growth Anaerobic digestion Food waste Food Greenhouse gas Digestate Environmental science Digestion SDG 12 - Responsible Consumption and Production |
| Zdroj: | Curry, R, Pérez Camacho, M N & Cromie, T 2017, ' Life cycle environmental impacts of substituting food wastes for traditional anaerobic digestion feedstocks ', Waste Management, pp. 1-16 . https://doi.org/10.1016/j.wasman.2017.12.023 |
| ISSN: | 0956-053X |
| DOI: | 10.1016/j.wasman.2017.12.023 |
| Popis: | In this study, life cycle assessment has been used to evaluate life cycle environmental impacts of substituting traditional anaerobic digestion (AD) feedstocks with food wastes. The results have demonstrated the avoided GHG emissions from substituting traditional AD feedstocks with food waste (avoided GHG-eq emissions of 163.33 CO2-eq). Additionally, the analysis has included environmental benefits of avoided landfilling of food wastes and digestate use as a substitute for synthetic fertilisers. The analysis of the GHG mitigation benefits of resource management/circular economy policies, namely, the mandating of a ban on the landfilling of food wastes, has demonstrated the very substantial GHG emission reduction that can be achieved by these policy options – 2151.04 kg CO2 eq per MWh relative to UK Grid. In addition to the reduction in GHG emission, the utilization of food waste for AD instead of landfilling can manage the leakage of nutrients to water resources and eliminate eutrophication impacts which occur, typically as the result of field application. The results emphasise the benefits of using life-cycle thinking to underpin policy development and the implications for this are discussed with a particular focus on the analysis of policy development across the climate, renewable energy, resource management and bioeconomy nexus and recommendations made for future research priorities. |
| Databáze: | OpenAIRE |
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