The study compared the environmental impacts of different methods for handling solid waste. Landfilling with energy recovery produces more air pollution and greenhouse gases due to biogas emissions. Waste to energy and mechanical separation to RDF/compost with RDF incineration release less leachate. Landfilling with energy recovery does not emit toxic metals but releases dioxins, furans, and polychlorinated biphenyls. Mechanical separation to RDF/compost with RDF incineration has lower pollutant releases per tonne of waste but disperses pollutants more widely in the environment. The study's methodology is reliable for evaluating environmental impacts of waste management.