GIS-BASED SYSTEM ANALYSIS FOR WASTE BIN LOCATION IN ENUGU MUNICIPALITY

Waste collection in Enugu has been a major challenge requiring urgent attention. The aim of the work therefore was to study with GIS the management of the existing bin distribution and collection system in order to determine the optimal frequency for waste collection. The methods adopted include questionnaires, oral interviews and field observations to determine the state of waste collection. Waste collection points both legal and illegal dumpsites were identified using handheld GPS and the points were incorporated into a map using Arc GIS 10.2 software. A total of 177 dumpsite locations were discovered during the study. Illegal dumpsites were 35 in number sand legal dumpsites instituted by ESWAMA were 142. Out of the 142 authorized dumpsites, 55 dumpsites were clean and well managed while 87 sites were dirty and overflowing with waste. Central Public Health and Environmental Engineering Organisation (CPHEEO) Manual (2000) was used in determining the optimum location of bins. A total of 635 dumpsites were proposed with two 1 m3 waste bins at each point to accommodate daily waste generation in the municipality.Factors considered in recommending the frequency of optimum waste discharge include waste generation rate, population density, volume of dumpster and socioeconomic factors