Solid Waste Management Trends in Nigeria (Published)
The purpose of this paper is to investigate the current trends in solid waste management in Nigeria and to identify the major challenges inhibiting the attainment of sustainability in solid waste management in the country. The study relied on a desktop and descriptive approach; hence, data were obtained mainly from previous publications relevant to the current study, particularly from peer reviewed publications. Sources such as waste management agencies webpages and documents, journal articles, environmental organizations reports and books were used to obtained data. These data were then analysed using a descriptive approach. It was found that solid waste management is a major concern in the country. Inadequate environmental policies and legislation, low level of environmental awareness, poor funding and inappropriate technology, corruption and unplanned development were some of the challenges facing solid waste management in the country. As a result, the paper concludes that for waste management to work, various aspects of Government services such as engineering, urban planning, Geography, economics, public health and law among others must be brought together under a proper policy to deliver an effective waste management system.
Municipal Solid Waste Disposal Site Selection of Jigjiga Town Using GIS and Remote Sensing Techniques, Ethiopia (Published)
Municipal solid waste management is a problem that is experienced by all counties in the world. Because of its nature, it has remained one of the major environmental problems man continues to face. Municipal solid waste management is considered as one of the most serious environmental and social problems challenging municipal authorities in developing countries. One of these impacts is raised from location of dumping site in unsuitable areas. This paper deals with selection of suitable site for the disposal of municipal solid waste generated from Jigjiga Municipality using GIS techniques.The existing open dumping systems in the town are not environmentally sound and socially acceptable as wastes have been dumped in inappropriate sites. The present study had integrated environmental and socio-economic criteria like proximity to road networks, distances from residences and important built up areas; surface water (river), boreholes and reservoirs to select the most suitable landfill site in the study area. The result reveals that out of five candidate landfill sites, a site with reasonable size (24 ha), at optimum distance from residences (4.8 km) and accessible to the major roads (1 km) was nominated as the most suitable site.