Integrating Rice Husk Utilization into the Design of Rice Milling Factory in Dass Local Government Bauchi State: A Sustainable Waste Management Approach

Abstract

This study investigates the integration of rice husk utilization and sustainable energy systems into the architectural and industrial design of a modern rice milling facility. Rice milling plays a vital role in food production; however, it generates significant solid waste, primarily in the form of rice husk, which constitutes approximately 20% of paddy weight. Conventional disposal practices, such as open-air burning and indiscriminate dumping, contribute to environmental degradation and public health risks. This research addresses these challenges by proposing an innovative design strategy that incorporates rice husk waste into the functional and spatial framework of a rice milling factory.
The study adopts a circular economy approach, positioning the facility as an integrated hub for both primary rice processing and secondary by-product valorization. A multi-stage milling system is proposed, emphasizing vertical gravity flow to enhance energy efficiency and improve head rice yield. The research is guided by three objectives: to assess the quantity of rice husk generated in the study area, examine existing disposal practices, and develop an architectural model that facilitates waste integration.
A qualitative methodology was employed, including an extensive literature review and case study analysis of comparable industrial facilities. Findings reveal a significant gap in current practices, where secondary production processes are rarely integrated within milling operations. In response, the proposed design incorporates dedicated systems for rice husk storage and processing into value-added products such as ceiling and particle boards. This study contributes to sustainable industrial development by presenting a resource-efficient architectural framework tailored to rice production in Dass Local Government Area, Bauchi State.