The Circular Economy and Municipal Solid Waste Management : Challenges and Innovations in Developed and Developing Countries

As populations grow and living standards improve, more waste is generated for developed and developing countries. Appropriate municipal solid waste management (MSWM) is necessary to avoid harm to the environment, wildlife, and human health. Developed countries are constantly adapting their policies and legislation to promote green development for the sake of sustainable development benefiting for both environment and socioeconomic. In some countries, landfills have been prohibited, promoting the use of more sustainable technologies such as incineration, recycling, and composting. However, the corresponding disposal strategies, along with constraints in land resources and finances, compounded by unorganized public behaviour, have resulted in ineffective policy implementation and monitoring. The transition from a linear to a circular economy presents both opportunities and challenges for municipal solid waste management systems in developed countries and much more in developing countries. As urbanization intensifies and consumption patterns evolve, cities face mounting pressure to reduce waste, enhance recycling, and closed loop approach. The integration of circular economy principles into municipal waste management frameworks, focusing on technological, policy, and behavioural innovations play a crucial role in MSWM. Key challenges include fragmented regulatory environments, technological limitations in waste sorting and recycling, lack of systematic, blind mapping and public resistance to behavioural change. Conversely, developed countries are at the forefront of adopting innovative solutions such as smart waste tracking systems, extended producer responsibility (EPR) schemes, and circular design in consumer products, while the developing nations are still far behind. Ultimately, the circular economy offers a transformative pathway toward resilient resource-efficient cities, but its implementation requires adaptive governance, investment in innovation, and strong stakeholder engagement.