Browsing by Author "Sonibare, J.A"

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    Energy recovery from municipal solid waste in Nigeria and its economic and environmental implications
    (Wiley Periodicals, Inc., 2019) Yusuf, R.O; Adeniran, J.A; Mustapha, S.I; Sonibare, J.A
    An assessment of potential biomass resources inNigeria for the production of methane and power generation is presented in this paper. Nigeria, as an underdeveloped and populous country, needs an uninterrupted source of energy. The country's energy problems have crippled large sectors of the economy. The percentage of people connected to the national grid is 40%. These 40% experience electricity supply failure on average 10–12 hours daily. Energy generation from municipal solid waste (MSW) is an effective MSW management strategy. Yearly waste generation has increased from 6,471 gigagrams (Gg) in 1959 to 26,600 Gg in 2015. This amount is projected to reach 36,250 Gg per year by 2030. Methane emission for 2015 was 491 Gg, and it is projected to reach 669 Gg in 2030. These values translate to 3.48 × 109 kilowatt hours (kWh) of electricity for 2015, with a projected 4.74 × 109 kWh by 2030. The revenue to be derived from the electricity that is generated could have been US$365.04 × 106 for 2015, and it is estimated that it will reach US$473.82 × 106 by 2030. It was found that methane emissions from MSW increased with time, and capturing this gas for energy production will lead to a sustainable waste management.
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    Improved Brewery Wastes Management Using Life Cycle Analysis
    (UNIOSUN Journal of Engineering and Environmental Sciences,, 2023-03) Adejumo, A.L.; Azeez, L; Sonibare, J.A; Aderibigbe, F.A; Akeredolu, F.A
    Abstract: Brewery is a major industrial activity in Nigeria from which wastes are generated. The present global attention on effective wastes management in the sector has compelled the country to embrace aggressive research methods on this essential subject matter. This has therefore been the impetus for this study to use the Cradle-to-Grave section of Life cycle analysis in the ISO 14040 for investigation of improved wastes management in a Nigerian brewery. In the study, emissions associated with brewery were identified and quantified to determine the releases into air, water and land. Materials use, use of energy, wastes and by-products generation as well as physical size from the sector were also determined for wastes management. The study shows that intensiveness of energy and water consumption in brewery industry during productions could cause large emissions that may have negative effects on the environment. Agreement of the material inputs and outputs in the study at about 99.6% level indicates that the adopted method can be of great help in solving wastes management problems in the brewery.