Abstract
The existing landfill sites in Accra are reaching full capacity and the acquisition of land for the construction of landfill sites has become very difficult due to rapid developmental activities in Accra. However, with the current rate of development which will cause the construction of landfill sites to be far from the source of generation, there is urgent need to get an intermediate facility, that is, waste transfer station where waste would be processed and compacted in long distance trucks to reduce the cost of waste transport and disposal. The objective of the study was to determine suitable places that could be used as waste transfer stations in relation to location of landfill sites using Geographic Information System (GIS). In this study, coordinates of all the container sites in Accra were determined with the Geographic Positioning System (GPS). The coordinates were then converted into points using ArcGIS and Microsoft Excel 2007 to help analysed the data collected. From the study, four transfer stations were located with the help of the GIS, namely: Ablekuman and Amomola (Transfer station 1),Oblogo and Weija (Transfer station 2),Ashongman and Agbogba (Transfer station 3), AshaleyBotwe and Ogbozdo (Transfer station 4). Key words: Transfer, waste, landfill, station, geographical information system (GIS), geographical positioning system.
Highlights
In recent years, management of solid waste has become an issue of increasing environmental concerns of public debate (Rahman and Moten Ashraf, 2007)
Haul distances became greater, giving rise to the use of transfer stations in which the waste is transferred to larger-capacity transfer trailers
These communal containers are placed to support the management of solid waste generated in the communities
Summary
Management of solid waste has become an issue of increasing environmental concerns of public debate (Rahman and Moten Ashraf, 2007). Solid waste was collected in packer dump truck collection vehicles which delivered the waste directly to landfills. Haul distances became greater, giving rise to the use of transfer stations in which the waste is transferred to larger-capacity transfer trailers. The trailers are hauled to the landfill site (US EPA, 1995). The American Heritage Dictionary of English language defines waste transfer stations as a facility where solid waste materials, including yard waste, demolition materials, and household refuse, are transferred from small vehicles to large trucks for efficient transport to landfills, recycling centres and other disposal sites (AHDEL, 2011).
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