On the Physical Composition of Solid Wastes in Selected Dumpsites of Ogbomosoland, South-Western Nigeria

Abstract

Solid wastes have varied compositions and constituents from place to place. The study area is not an excep- tion. The entire 5 Local Government Area (LGA)s of Ogbomosoland were surveyed and about 40 major dumpsites were identified across the spread. Twenty-five (25) of these were selected, five (5) each per LGA, for the study. The wastes were collected from the dumps, sorted, weighed and classified according to their constituents. The densities of wastes from the 25 dumpsites were also determined. The overall average composition using the main classes of wastes were found to be food; 68.4%, metals; 7.2%, textile; 4.6%, papers; 4.4%, plastic; 3.9%, glass; 3.6%, wood; 3.1%, and miscellaneous; 4.8%. The average waste density for the study area was 438.1 kg/m3. Putrescible materials dominated the waste composition of the study area. The components of wastes in the city revealed a higher standard of living when compared with those of the residents in the environs. Rural residents generate denser wastes when compared with the urban centres and as such are prone to leachate pollution emanating from these organic wastes. The ingress of leachate is a threat to the groundwater resources of the study area

Design of Used PET Bottles Crushing Machine for Small Scale Industrial Applications

“…Municipal solid waste (MSW) also known as urban solid waste is defined as non-air and sewage emissions generated within and disposed by the municipality. These includes household waste, commercial refuse, construction and demolition debris, dead animals and abandoned vehicles [2]. MSW is mainly characterized by paper, vegetable matter, plastics, textiles, metals, rubber and glasses [3].…”

Radiometric evaluation of excessive lifetime cancer probability due to naturally occurring radionuclides in wastes dumpsites soils in Agbara, Southwest, Nigeria

“…Hazards posed by such waste dumpsite are not only in term of odor and presence of disease causing micro-organism, but can arise from the radiation emanating from such dumpsite (Ojoawo et al, 2011), which occur as results of accumulation and reaction of different radioactive materials in the waste indiscriminately dumped on open waste site. At waste dumpsites, there are possibilities for radiation to be emitted due to the presence of radioactive waste in the landfills as well as naturally occurring radionuclides in the soil.…”

Socio-technical systems analysis of waste to energy from municipal solid waste in developing economies: a case for Nigeria

“…The values were 56% and 52% for the wet and dry season, respectively. The average composition of waste in Nigeria is approximately 50-70% putrescible and 30-50% non-putrescible [5,6], presenting much resource recovery potentials in composting and biogas renewable energy. Also, Olabode and Lawrence [26] mentioned that 53% of all goods, packaged in plastics, accounts for approximately 20% of total waste generated in the country.…”

“…This development is stirring curiosity on the level of waste management and its developmental process in low-income economies. Also, research has shown that the predominant MSW stream in many developing economies is the organic waste [5,6] and substantial energy can potentially be generated through technological processes from municipal waste.…”