Sustainability Life Cycle Assessment of Household Food Waste Management in Urban Areas.

Background: Food waste is a severe problem, and Indonesia is the world’s second-largest producer of food waste. A limited waste management system will decrease environmental quality, such as air, water, and soil pollution. So far, the waste management system is limited to reducing waste generation. The life cycle assessment is a method to analyze environmental aspects or environmental impacts at all stages in a resource’s life cycle, from the initial process of raw materials to disposal. This study aims to analyze the environmental impact and provide waste management policies to obtain sustainable household waste management and environmental sustainability. Methods: The study design used in this research is cross-sectional by conducting direct observations and interviews at the Waste Bank. Interviews were conducted to identify more in-depth findings about waste management problems and the characteristics of respondents and waste characteristics. Observations were made to calculate waste generation that refers to Indonesian national standard methods of sample collection and measurement of urban waste generation and composition (SNI 19-3694-1994.) The sampling technique was carried out by the total sampling method, resulting in 100 households. Results: The research results with organic waste processing with the black soldier fly method. This method impacts global warming, acidification, eutrophication, and ozone depletion. Of the four elements that produce the most negligible impact is the impact of global warming of 0.281 kg CO₂ eq compared to the other effects. Conclusion: BSF processing can reduce environmental impacts, especially global warming. Meanwhile, education affects people’s behavior in generating food waste; therefore, there are policy recommendations for Waste Bank stakeholders in processing food waste. [ABSTRACT FROM AUTHOR]