| Summary: | The proliferation of single-use plastic (SUP) waste has become a critical
environmental issue, particularly in urban regions such as Chattogram, Bangladesh. This
study explores a sustainable alternative by developing biodegradable disposable plates using
rice husk, an agricultural byproduct abundantly available in the region. Through a
mixed-methods approach combining literature review, experimental fabrication, and
community-based surveys, the research evaluates the technical feasibility, environmental
impact, and public acceptance of rice husk-based plates. A series of trials optimized the
plate formulation using natural binders such as cornstarch and flour, achieving favorable
strength, durability, and biodegradability under controlled baking conditions. The plates
were formed through molding and cured using a staged baking process, optimized between
80°C and 110°C to enhance strength and durability. Mechanical and chemical tests
confirmed the plates' structural integrity, water resistance, and minimal environmental
impact. Community perception analysis, involving 131 participants, revealed strong
awareness of plastic pollution and a high willingness to adopt eco-friendly alternatives,
provided they are affordable and accessible. The results suggest that rice husk-based plates
are technically viable, socially accepted, and environmentally beneficial, with future
scalability achievable through mechanized heat-press production. The findings highlight the
potential of rice husk-based products to align with multiple UN Sustainable Development
Goals, including SDG 8 (Economic Growth), SDG 12 (Responsible Consumption), and
SDG 13 (Climate Action). Despite challenges related to durability, market penetration, and
production scalability, the study proposes mechanized production via heat-press technology
as a viable path forward. Therefore, the research demonstrates that rice husk plates present
an environmentally sound and economically inclusive strategy for mitigating plastic waste
in Bangladesh.
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