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Co-Digesting Textiles with Food Waste Boosts Methane Yields

Study shows co-digesting textile waste with food waste boosts methane yields, especially for cotton-rich blends. Optimal ratios and C/N balance enhance biogas production.

This research matters because textile waste is generated at enormous scale—about 92 million tonnes disposed of annually—and current disposal methods like landfilling and incineration are costly and environmentally problematic. By demonstrating that co-digestion with food waste can significantly enhance methane production from cotton-rich blends, the study offers a practical pathway to divert textile waste from landfill while generating renewable energy. The findings provide actionable guidance for waste managers and biogas operators on optimizing feedstock ratios and highlight the need for pretreatment of blended fabrics and wool. As the world seeks sustainable waste management and renewable energy solutions, this approach could reduce greenhouse gas emissions, improve digester stability, and support the circular economy by turning problematic waste streams into valuable resources.