This project involves the laboratory-scale production of ultra-fine chitosan powder from crab and lobster shell waste and its formulation into a biodegradable crack-filling mixture for repairing walls and concrete structures. It applies a practical, waste-to-wealth approach that addresses infrastructure gaps, environmental sustainability, and youth empowerment. Using 40 kg of seafood shell waste, the project is expected to produce 10 kg of high-grade chitosan powder—an eco-friendly bio-polymer known for its strong adhesive, film-forming, and moisture-resistant properties—then blend it with natural fillers to create a low-cost crack repair material suitable for Nigerian construction needs.
Structural cracks are widespread in Nigerian homes, schools, and public infrastructure, particularly in low-income areas where repair products are unaffordable. Meanwhile, seafood shell waste contributes to environmental pollution.
This project integrates both challenges into one solution by converting locally available shell waste into a functional construction material, reinforcing Nigeria’s circular-economy agenda and demonstrating the practical use of biotechnology for community development.
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