Municipal solid waste sampling, quantification and seasonal characterization for power evaluation: Energy potential and statistical modelling

• Published in: Fuel (Guildford) 2020-10, Vol.277, p.118122, Article 118122
• Main Authors: Ibikunle, R.A., Titiladunayo, I.F., Lukman, A.F., Dahunsi, S.O., Akeju, E.A.
• Format: Article
• Language: English
• Subjects: Calorific value; Carbon content; Computer graphics; Dry season; Energy; Energy potential; Finite element method; Flammability; Mathematical models; Modelling; Municipal solid waste; Municipal solid wastes; Municipal waste management; Physicochemical properties; Quantification; Rainy season; Seasonal characterization; Seasons; Solid waste management; Statistical methods; Statistical models
• ISSN: 0016-2361; 1873-7153
• DOI: 10.1016/j.fuel.2020.118122

•The quantity and characteristics of dry season MSW at Eyenkorin was evaluated.•Dry season SMW generation rate, sustainability and power potentials is predicted.•203,831 tons of SMW was produced at 1.12 kg/capita/day.•280 tons SMW with heating value of 19 MJ/kg potentially gives 1478 MWh heat energy.•280 tons SMW also produces 18 MW electric powers and 13 KW of grid respectively. Municipal Solid Waste (MSW) streams of Ilorin was characterized for four months in each season: May to August 2016, representing wet season; and November 2016 to February 2017 representing dry season. Thirty-two samples of 240 L bin volume of MSW were collected randomly, from heaps of wastes at Lasoju/ Eyenkorin for each season. The samples were manually sorted on the metallic (screening) table (1.5 m × 3 m with 10 mm × 10 mm surface mesh). Nine combustible waste fractions, out of the nineteen waste components characterized, were considered for laboratory analysis. Proximate analysis revealed averages of 57% and 55% fixed carbon content for wet and dry seasons respectively. Ultimate analysis gave 29 and 29.2% total carbon content for wet and dry seasons respectively. Models were developed to ascertain the correlation between the physicochemical properties and the heating values of the waste fractions. The MSW predicted for the dry season was 158 tons/day, with generation rate of 0.15 kg/capita/person, heating value of 29 MJ/kg, energy and power potentials of 890.2 MWh and 11.27 MW, respectively. MSW for wet season was 210 tons/day, with 0.02 kg/capita/day, heating value of 26 MJ/kg, energy and power potentials of 1.1 GWh and 1.06 GW, respectively.