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This study aims at determining the energy content from campus wastes and estimation of electricity generation. Samples of solid wastes generated within Landmark University were collected, separated, classified, dried in the oven at 105°C till constant weight was attained, pulverized and sieved using a sieve size of 500 μm. The moisture contents of the waste samples were determined, in triplicates. The digital bomb calorimeter (C-200 Bomb Calorimeter) was used to determine the calorific value of the prepared waste samples. Correlation analysis was carried out to determine coefficients and significant levels; while regression equations were generated, using ANOVA to relate the dependent variable - Potential Electricity Generated (PEG) with independent variables- Total Energy Content (TEC) and Specific Energy Content (SEC). The moisture contents are plastic bottles (0.78%), water sachet (0.82%), and food packs (5.37%), wood wastes and ash (5.35%), food wastes (5.95%), and paper wastes (5.56%). Calorific values of plastic bottles, polythene products, Wood wastes and ash, food wastes, paper wastes and polystyrene (food pack) are 31,246.63, 29,084.24, 17,243.56, 14,360.49, 12,975.42 and 4575.10 kJ/kg, respectively. The total energy content from the campus wastes was estimated at 32,999.30 MJ/day. This implies a possibility of about 0.38MW of electricity generation from daily steam production. There was high level of correlation between the energy value parameters (R > 0.99) and significant at < 0.01. The energy content is expected to grow with the expansion of the campus.

As a result of the challenges of the manual method of taking attendance in schools and colleges in Nigeria, an automated attendance system needs to be adopted.

The present method of waste disposal in Omu Aran is a direct open dumping and burning at various unapproved dumpsites. The study was conducted at selected five major dumpsites within Omu Aran community, to investigate the existing waste management systems, characterize solid wastes generated, and estimate the rate of solid waste generation. An exploratory study design was adopted for a period of one year, January 2018 to January 2019. Five (5) randomly selected spots of 1sq.m were located on each of the five (5) major dumpsites in Omu Aran. For each of the dumpsites, solid wastes were collected from top to the depth of 300 mm in each of the five (5) selected one- sq.m spots. Estimated waste generated was about seventy-four tons (73,744.92 kg) with generation rate of 0.496 kg/person. Total amount of material recyclable was about thirty-two tons (32,447.76 kg; about 44 %) and energy recovery material, to attain zero-waste, integrated waste management scheme was over forty one ton (41,297.16 kg; about 56 %). The combustible components of solid waste generated in Omu Aran community (kg/day), energy content (kJ/day) and electricity generation potential (MW) were presented. Estimated energy content of solid wastes from the Omu Aran dumpsite was 1097.999 GJ/day. This implies that there is possibility of electricity generation up to 12.708 MW from daily steam production. Considering the high material recyclability, reusability and energy recovery potentials from solid wastes generated in Omu Aran community, it was recommended that the Irepodun Local Government Authority adopts sustainable and integrated waste management options of waste minimization from the source, reuse, recycling of solid waste generated within the large community.