3D printing to enable the reuse of marine plastic waste with reduced environmental impacts
نویسندگان
چکیده
Abstract Over the years, our oceans have witnessed an enormous accumulation of marine plastic waste resulting from ocean‐related economic activities. As pollution adversely affects wildlife and habitat, society requires urgent solutions to address this increasingly alarming dilemma. Here, we turn attention circular economy principles reduce amount nonbiodegradable petroleum‐based litter. We consider a production process based on 3D printing fabricate products for industry, which uses as source material. Additionally, suitability virgin bio‐based polyamide (bio‐PA), polylactic acid (PLA), polyhydroxybutyrate (PHB) is explored. PHB selected due its extraordinary rapid biodegradation in aquatic environments. To quantify environmental impacts proposed processes, cradle‐to‐grave life cycle assessment (LCA) applied according ISO 14040:2006 14044:2006 standards. Different end‐of‐life alternatives are proposed, including landfill deposition, thermal degradation, composting. LCA results reveal that use environmentally preferred comparison with bio‐PA, PLA, PHB. Specifically, global warming indicator, considered prime driver toward sustainability, shows 3.7‐fold decrease bio‐PA. Importantly, through crude glycerol fermentation quantified first time. Regarding options composting scenario, PLA they yield biogenic carbon dioxide (CO 2 ), can be used renewable energy source.
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ژورنال
عنوان ژورنال: Journal of Industrial Ecology
سال: 2022
ISSN: ['1530-9290', '1088-1980']
DOI: https://doi.org/10.1111/jiec.13302