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<p>This paper explores sustainable waste management solutions by repurposing Polyethylene Terephthalate (PET) bottles for 3D printing through a blend of hands-on experimentation and community-driven initiatives. This study presents a practical solution for reducing plastic waste by converting discarded PET bottles—commonly regarded as a significant environmental hazard due to their non-biodegradability—into functional 3D-printed products. The research employs a comprehensive methodology that includes all phases of the recycling process: collection, shredding, drying, extrusion, and 3D printing. In parallel, a Sustainability Mobile Lab (Sust-Lab) was established to engage the community through educational outreach and interactive demonstrations, fostering a deeper understanding of plastic recycling. Surveys indicate a notable shift in public attitudes toward sustainable waste practices, highlighting the importance of community participation in driving environmental change. The findings underscore the potential of recycled 3D printing to create a closed-loop system where PET waste is transformed into functional products, contributing to circular economy principles. This research provides valuable insights for advancing effective recycling strategies and emphasizes the role of collective action in achieving long-term sustainability goals, with implications for both academia and broader societal efforts.</p>

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Sustainable waste solutions: 3D printing with recycled plastic bottles through experimentation and community action

  • 期刊论文

  • 发表日期：

    2025年12月10日

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  • Rabee M. Reffat,
  • Mariam G. Hassn

摘要

This paper explores sustainable waste management solutions by repurposing Polyethylene Terephthalate (PET) bottles for 3D printing through a blend of hands-on experimentation and community-driven initiatives. This study presents a practical solution for reducing plastic waste by converting discarded PET bottles—commonly regarded as a significant environmental hazard due to their non-biodegradability—into functional 3D-printed products. The research employs a comprehensive methodology that includes all phases of the recycling process: collection, shredding, drying, extrusion, and 3D printing. In parallel, a Sustainability Mobile Lab (Sust-Lab) was established to engage the community through educational outreach and interactive demonstrations, fostering a deeper understanding of plastic recycling. Surveys indicate a notable shift in public attitudes toward sustainable waste practices, highlighting the importance of community participation in driving environmental change. The findings underscore the potential of recycled 3D printing to create a closed-loop system where PET waste is transformed into functional products, contributing to circular economy principles. This research provides valuable insights for advancing effective recycling strategies and emphasizes the role of collective action in achieving long-term sustainability goals, with implications for both academia and broader societal efforts.