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How to Remove Plastics from Biowaste Cost Efficiently and at an Industrial Scale at Composting Facilities

Zenodo (CERN European Organization for Nuclear Research) 2026
Alina Räkköläinen, Anna Nurmi, Lucienne De Waal, Nelly Plukka, Valerian Kaiser

Summary

Researchers teamed up with a Finnish composting company to tackle a hidden problem: plastic waste that ends up mixed into the compost made from our food scraps and yard waste. They developed a step-by-step plan, starting with practical equipment to strip out visible plastic now, and looking ahead to biological methods that could break down microplastics in the future. This matters because compost contaminated with plastic can spread tiny plastic particles into soil, potentially working their way into the food we grow and eat.

The TREASoURcE project, in collaboration with Aalto University’s International Design Business Management (IDBM) master’s programme, explored solutions to reduce plastic contamination in industrial biowaste composting through a case study with Kekkilä, Finland’s leading landscaping products manufacturer. The project developed a three-stage strategy towards cleaner and more sustainable biowaste processing — from immediate depackaging solutions to future biological innovations targeting microplastics. https://handbook.treasource.eu/how-to-remove-plastics-from-biowaste-cost-efficiently-and-at-an-industrial-scale-at-composting-facilities/

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