The Wege Prize, an international design competition hosted by Ferris State University’s Kendall College of Art and Design, has announced that UniThread EcoHusk is a finalist for its 2026 awards. This student-led initiative, based in Africa, focuses on the valorization of discarded cocoa husks, a significant agricultural byproduct in the region. By applying circular economy principles, the team has developed a methodology to convert this organic waste into dual-value streams: soil-enhancing biocharBiochar is a carbon-rich material created from biomass decomposition in low-oxygen conditions. It has important applications in environmental remediation, soil improvement, agriculture, carbon sequestration, energy storage, and sustainable materials, promoting efficiency and reducing waste in various contexts while addressing climate change challenges. More and activated charcoal-based water purification kits. The project is one of five finalists selected from a global field, highlighting the growing importance of integrated waste-to-value systems in emerging markets.

The primary challenge addressed by UniThread EcoHusk is the environmental degradation and health risks associated with the improper disposal of cocoa husks. When left to decompose in open fields, these husks harbor pests and diseases that threaten living cocoa trees, while simultaneously leachingLeaching is the process where nutrients are dissolved and carried away from the soil by water. This can lead to nutrient depletion and environmental pollution. Biochar can help reduce leaching by improving nutrient retention in the soil.   More nutrients that can lead to soil acidification. Furthermore, the textile industry in many cocoa-producing regions contributes significant volumes of dye pollution to local water bodies. These twin issues—agricultural waste mismanagement and industrial water contamination—create a compounding ecological burden that traditional linear economic models fail to mitigate effectively.

The solution involves a thermo-chemical conversion process that stabilizes the carbon in cocoa husks to create high-quality biochar and activated carbonActivated carbon is a form of carbon that has been processed to create a vast network of tiny pores, increasing its surface area significantly. This extensive surface area makes activated carbon exceptionally effective at trapping and holding impurities, like a molecular sponge. It is commonly More. The biochar is intended for agricultural application, where it acts as a soil amendmentA soil amendment is any material added to the soil to enhance its physical or chemical properties, improving its suitability for plant growth. Biochar is considered a soil amendment as it can improve soil structure, water retention, nutrient availability, and microbial activity.   More to sequester carbon and improve moisture retention. Concurrently, the team utilizes the material to produce filtration kits designed to capture up to 95% of synthetic dye pollutants from textile wastewater streams. This integrated approach not only prevents the biological hazards of rotting husks but also provides a low-cost, decentralized technology for industrial remediation, effectively closing the loop on agricultural and industrial waste.

The outcomes of this project include the measurable reduction of biological pathogens in cocoa-growing regions and the provision of an affordable tool for water decontamination. By advancing to the final stage of the Wege Prize, UniThread EcoHusk gains access to expert mentorship and technical validation from the Ferris State University faculty and the Wege Foundation. If successful at the final presentation in May 2026, the model could serve as a blueprint for other cocoa-producing nations seeking to implement circular supply chains. This initiative demonstrates that biochar can serve as a central pillar in multi-sectoral environmental protection strategies.