Solid waste management across the urbanization gradient in Changunarayan municipality (Nepal): exploring barriers and identifying strategies for sustainability
摘要
This study examined municipal solid waste management in Changunarayan Municipality, Nepal, where rapid urbanization has led to more waste but not enough improvement in waste management systems. Data were collected through 150 household (HH) surveys, direct waste measurements, and interviews. The results showed that each person generates about 0.077 kg of waste per day. Most of this waste is organic (81.6%), with agricultural waste making up (75.8 ± 4.42)% of the total, while plastics account for (11.7 ± 4.02)%. Waste generation varies across areas with different levels of urbanization. The study found strong correlations between HHs income (r = 0.569) and family size (r = 0.558) with the amount of waste produced. Major challenges include limited access to formal waste collection, with only 15% of HHs participating, and widespread open burning of waste, reported by 69.33% of HHs. Gender disparities were also observed in waste handling responsibilities. To address these issues, a sustainable waste plan was introduced. This plan supports sustainable development goals related to gender equality, sustainable cities, and responsible consumption. The findings and strategies from this study can help other rapidly growing municipalities facing similar waste management challenges.
Graphical Abstract