Economic Analysis of Solid Waste Disposal Scenarios in Nigeria Using BATNEEC Model

摘要

Sustainable waste disposal method requires the integration of economic, social, technical and environmental principles in order to meetthe challenges of urbanization, industrialization, technological advancement and population increase. This study analysed the solid wastedisposal in Nigeria with the aim of findinga method with minimum cost of disposing such waste. The study utilized published andunpublished data as major sources of information while contact with the waste management officials were sought to provide up-to-dateinformation and confirmation on the existing data. Best Available Technology Not Entailing Excessive Cost BATNEC criteria were used toanalyse eight scenarios which include: Open dumps, Landfill without gas recovery, Landfill with gas recovery and utilization for electricity,uncontrolled Incineration, controlled incineration, Recycling, Composting, and Mechanicaland Biological Treatment (MBT). Multi-criteriadecision analysis (MCDA) was then applied to determine the best alternative method of disposing waste in Nigeria.The results of theanalysis show that MBT is a favourable option for the disposal of solid waste in Nigeria. This is because waste generated in Nigeria arepredominantly biodegradable in composition.