The quest for reliable and adequate power supply in Nigeria has brought about a surge of interest in renewable energy generation, particularly from wind, solar, hydro and biomass resources including municipal solid waste. Waste-derived energy raises unique interest because of the magnitude of benefits to environmental protection and socio-economic advancement. The successful operation of Waste-to Energy (WtE) facilities in Nigeria requires continuous supply of solid waste and enabling environment amongst other factors. This study conducted a state-level assessment of the WtE potential of municipal solid waste (MSW) in Nigeria. Our findings show that the electricity generation potential for the different states in Nigeria varied from 31 -205 MW, depending on state's waste generation capacity. The country's annual electricity generation potential from MSW was estimated to be 26744 GWh/year, with 89% of the states having sufficient generation capacity at minimum regulatory electricity generation requirement of 50 MW. But, based on current realities such as poor collection efficiencies, Nigeria's exploitable WtE capacity from MSW was below 3800 GWh/year, with all the states having less than 50 MW capacity. On-site power generation such as dedicated power station for industrial estates and corporate users can be a feasible form of distributing energy generated from WtE facilities. The outcomes of this study are important in informing the siting of WtE facilities in Nigeria and for enabling policy framework.
HighlightsIgnition, gasification and combustion of simulant and real faeces were studied.Trials using fuel flowrates of 1.2 g/min and 7.5–8 L/min of air were carried out.Mean temperatures of 440–670 °C allowed self-sustained combustion.Maximum temperatures reached for real faeces were in the range of 1210–1240 °C.Combustion trials lasted up to 160 min without external heat supply.
HighlightsCo-combustion analysis was investigated using a bench-scale combustor test rig.Raw human faeces (FC) contained 73.9 ± 4.4 wt% moisture as received basis.Blending with wood dust (WD) in a 50:50 ratio reduced moisture levels by ∼40%.Minimum acceptable blend for combustion without prior drying is 30:70 WD:FC.Fuel burn rates are 3.18–4.49 g/min for all the blends at air flow of 12–18 L/min.Oxygen, potassium and calcium are the most abundant elements in faecal ash.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.