Details zur Publikation |
| Kategorie | Textpublikation |
| Referenztyp | Zeitschriften |
| DOI | 10.1007/s11367-026-02590-8 |
Lizenz  |
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| Titel (primär) | From waste to circularity: the potential of different treatments of poultry manure and forestry residues in a hot-spot production region in Portugal |
| Autor | d’Espiney, A.; Verworner, B.; Pinheiro, H.M.; Marques, I.P.; Oehmichen, K.; Engler, N.; Majer, S.; Stinner, W.; Thrän, D.
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| Quelle | International Journal of Life Cycle Assessment |
| Erscheinungsjahr | 2026 |
| Department | SANA |
| Band/Volume | 31 |
| Seite von | art. 9 |
| Sprache | englisch |
| Topic | T5 Future Landscapes |
| Supplements | Supplement 1 |
| Keywords | Biomass management; Biomass cascading use principle; Bioenergy systems; Life cycle assessment; Comparative assertion |
| Abstract | Purpose The management of biogenic residues in a way that extends the lifetime of carbon within the systems is a focus of the present work. Different waste management systems are assessed in terms of GHG emissions and removals, aiming to identify that with the lowest impact on climate change. Methods A life cycle comparative analysis is performed, assessing the mitigation of the impact on climate change of the current waste management system (A) of the top two residues of a Portuguese region – composting of poultry manure and open air burning of forestry residues – considering two bioenergy solutions: biochemical conversion of poultry manure and thermochemical conversion of wood residues (B); biochemical conversion for both residues together (C), implying fungal pre-treatment of the wood residues, which adds a food product to the supply chain. Data were retrieved from literature and from authors’ experimental work. Assumptions underlying the methodological framework (e.g., cut offs inherent to comparative assertions) are discussed. A sensitivity analysis covers uncertainties underpinning bioenergy systems assessments (e.g., unperfect substitution and rebound effect phenomena). Results and discussion The highest impact on climate change is observed with system A, greenhouse gas (GHG) emissions 2 to 3 times higher than those of the other two systems. System A also performs poorly in conserving the biomass, e.g., forestry residues burning results in carbon being directly released to the atmosphere with no valuable intermediate use. In the base scenario, system B results in the lowest GHG emissions of the three systems, producing biochar, which contributes to carbon sequestering, and biodiesel. Nevertheless, system C can result in the lowest GHG emissions, in a scenario considering unperfect substitution with renewable sources being selected to match the biodiesel supply of system B. Conclusions System A is least preferable among the three options. Between systems B and C, ranking depends on whether unperfect substitution is considered. System B performs better in all scenarios, except with unperfect substitution, where system C outranks B. Moreover, system C achieves a higher yield of digestate, a product providing other ecosystem services. Thus, in future research, the inclusion of other impact categories in LCA can reveal a better overall environmental performance for system C. |
| d’Espiney, A., Verworner, B., Pinheiro, H.M., Marques, I.P., Oehmichen, K., Engler, N., Majer, S., Stinner, W., Thrän, D. (2026): From waste to circularity: the potential of different treatments of poultry manure and forestry residues in a hot-spot production region in Portugal Int. J. Life Cycle Assess. 31 , art. 9 10.1007/s11367-026-02590-8 |
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