ABSTRACT Food waste management remains a pressing global challenge with substantial economic, environmental, and social implications. Among various waste valorization strategies, upcycling solid food waste residues into biochar has gained attention as a sustainable and efficient approach. This review explores the processes, benefits, and challenges associated with converting solid food waste into biochar. Several challenges, including variability in feedstock composition, production costs, and potential contamination with hazardous substances, were evaluated based on the efficacy of biochar. This review provides a comprehensive analysis of biochar production techniques and physicochemical properties considering the potential of food waste‐derived biochar in advancing waste management and circular economy initiatives. Future research directions emphasize the need for standardized production methods and improved regulatory frameworks to enhance the large‐scale feasibility of biochar application.
Rosli et al. (Sun,) studied this question.
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