<span lang="EN-CA">Valorization of Food Waste for Sustainable Construction Biomaterials: A Circular Economy Approach

The urgent need to address both food waste accumulation and environmental degradation has intensified interest in converting food-derived residues into sustainable construction biomaterials. This review examines the potential of food waste as a renewable feedstock for the production of value-added construction materials, including bioplastics, biochar, bio-admixtures, biocementation products, insulation materials, and fiber-reinforced composites. Particular emphasis is placed on the physicochemical characteristics of different food waste streams, their valorization pathways, and their influence on the mechanical, thermal, durability, and environmental performance of construction materials. The review provides an integrated framework linking food waste streams, conversion technologies, construction-material applications, and sustainability outcomes within a circular economy context. Additionally, the role of biochar as a multifunctional additive in cementitious materials is critically assessed, with attention to its effects on mechanical performance, thermal properties, internal curing, and carbon sequestration. Emerging digital technologies, particularly artificial intelligence and data-driven optimization tools, are also discussed for their potential to improve waste management, process optimization, and material design. The review highlights both opportunities and limitations associated with food-waste-derived construction materials, including feedstock variability, long-term durability, scalability, economic feasibility, and regulatory challenges. By integrating waste valorization strategies with sustainable construction practices, this review demonstrates how food waste can contribute to resource efficiency, carbon mitigation, and the advancement of a circular bioeconomy for the built environment.

کلیدواژه ها:

Food waste ، Biochar ، Construction biomaterials ، Circular Economy ، Sustainable Construction ، Waste valorization