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Life Cycle Assessment of Olive Pomace as a Reinforcement in Polypropylene and Polyethylene Biocomposite Materials: A New Perspective for the Valorization of This Agricultural By‐Product

Espadas-Aldana, Gabriela and Guaygua‐Amaguaña, Priscila and Vialle, Claire and Belaud, Jean-Pierre and Evon, Philippe and Sablayrolles, Caroline Life Cycle Assessment of Olive Pomace as a Reinforcement in Polypropylene and Polyethylene Biocomposite Materials: A New Perspective for the Valorization of This Agricultural By‐Product. (2021) Coatings, 11 (5). 525. ISSN 2079-6412

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Official URL: https://doi.org/10.3390/coatings11050525

Abstract

The main environmental impact of olive oil production is the disposal of residues such as pomace and water vegetation. During the olive oil extraction process, the olive stone is milled and discharged within the olive pomace. However, olive stone flour can be valorized as filler for poly‐meric composites. A life cycle assessment of the olive pomace valorization was carried out by fo‐cusing on the manufacturing process of a biocomposite made of two different thermoplastic matri‐ces, i.e., polyethylene and polypropylene. The functional unit is the production of 1 m2 of a lath made of an olive pomace‐based biocomposite. The analysis was carried out with the SimaPro PhD 9.1.1.1 software, and the database used for the modeling was Ecoinvent 3.6. The obtained results reveal that the hotspot of the whole process is the twin‐screw compounding of the olive stone frac‐tion, with the polymeric matrix and coupling agent, and that human health is the most affected damage category. It represents 89% for both scenarios studied: olive stone fraction/polypropylene (OSF/PP) and olive stone fraction/polyethylene (OSF/PE). Further research directions include the use of biosourced polymer matrices, which could reduce the impact of olive pomace‐based compo‐site manufacturing.

Item Type:Article
Additional Information:Licence : CC BY
HAL Id:hal-03216000
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
French research institutions > Institut national de recherche pour l'agriculture, l'alimentation et l'environnement - INRAE (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Laboratory name:
Funders:
Mexican National Council for Science and Technology (CONACYT Mexico) under the scholarship No. 471707
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Deposited On:03 May 2021 14:32

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