Suitability Analysis of Waste Collection Sites in Port Harcourt Metropolis, Nigeria (original) (raw)
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Journal Article, 2020
Municipal solid waste management is a global contemporary issue affecting cities' authorities. Like other major cities of the world, Kano metropolis, with a population of more than four million , is faced with serious solid waste management problems. This study assesses the suitability of existing locations of solid waste disposal sites within metropolitan Kano. Satellite imageries (Landsat, AsterDEM), GPS-locations of the waste disposal sites, and topographical map of Kano metropolis were used as data for this study. The data were modeled and analyzed using a multi-criteria decision technique. The output produces restriction and suit-ability maps for solid waste disposal within the metropolis. Results show that only 26 percent of the existing solid waste disposal sites are suitable, while 74 percent are unsuitable sites. The study recommends the relocation of those existing unsuitable solid waste disposal sites to more environmentally favorable sites as highlighted in this study. ARTICLE HISTORY
Ineffective solid waste management constitutes a major environmental problem in urban areas, Minna, Nigeria inclusive. This study analysed the spatial patterns of waste dump sites and the health hazards associated with the observed patterns. Also, the study identified possible areas at risk of health hazards; suggests the most suitable location for dump sites and sorting centers for municipal solid wastes; and provides a framework for sustainable solid waste management in Minna, Niger State, Nigeria. The data used for this study were obtained from both primary and secondary sources. The primary source involved the use of GPS receiver to obtain the coordinates of dump sites and pictorial evidence were taken with a digital camera showing open dumps. Also, a set of 144 questionnaires were used to obtain information about people’s perception of solid waste disposal and management. The secondary data used included the IKONOS image of Minna with 3.2m resolution in multispectral was obtained from Google earth in July 2010. The spatial analyses of the phenomena of interest were done on the basis of the 13 existing administrative districts in the town. Multi-stage sampling procedure was used to select respondents to the questionnaires used for the study. The Google earth satellite imagery was zoomed to a satisfactory resolution and the areas of interest were clipped using corel draw and then joined together through mosaicing. Thereafter, the required remote sensing, GIS and cartographic operations were performed. Results show that there were 31 major dumpsites in Minna which are situated within built-up areas mostly along major roads and watercourses. The proximity analysis based on the National Environmental Standards and Regulations Enforcement Agency (NESREA) used at distances 1000m, 500m and 250m showed that built-up areas, major roads, and watercourses fall within buffer range to dumpsites. The identified built-up areas within a distance of 1000m to dumpsites location showed that Bosso Estate, Myper, Dutsen kuran, Western by pass, Maitunbi, Tunga, Chanchanga, Shango, Kpakungun, Sokakahuta are at risk of possible environmental problems. Buffering analysis also revealed that Rivers Bako, Sauke and Gora were within a distance of 500m to dumpsites and is therefore at risk of pollution by the dumpsite constituents. In addition, 1000m buffering analysis showed that Paiko Road, Western by pass, Eastern by pass, and Zungeru Road are prone to littering by dumpsite constituents when aided by wind or human. These major roads are also liable to the risk of incinerator smoke which hampers the visibility of road users as shown by the query analysis. Furthermore, result showed that the most common waste generated in the study area is plastic (40.9%). It also revealed that 65.9% practice open dumps disposal system and only 59.1% of inhabitants disposes their waste daily. Malaria was reported by 86.4% of the respondents as the most important health problem in the town. Also, 61.4% of inhabitants depend on ground water as their means of water supply. The study also identified points free of intersection among dumpsites, built-up areas, watercourses and major roads at a distance of 3500m as most suitable sites for dumpsites and sorting centres. The study concludes that waste management with it attendant problems still constitute a major challenge in the study area and suggests the 3R’s model as framework for effective solid waste management in the town.
Spatial Analyses of Suitable Solid Waste Dumping Sites in Damaturu, Yobe State Nigeria
2019
The generation and disposal of solid waste is a serious problem in urban areas especially in developing countries. This is because of high generation rates, insufficient budget and machinery for solid waste management, inappropriate techniques and few or non-existent suitable dumping sites. The main objective of this study is to propose suitable areas for solid waste dumping in Damaturu Town, which are environmentally suitable and economically viable. The main data used for this study were Landsat 8 OLI TIRS image with a spatial resolution of 30m; digital elevation model (DEM) with 30m spatial resolution, and ground control point (GCP) collected with a handheld global positioning system (GPS). The maps were prepared by overlay and suitability analysis was carried out using geographic information system (GIS), remote sensing techniques and multi criteria analysis methods. The final suitability map was produced by overlay analyses in ArcMap and levelled as high, moderate, less suitabl...
The indiscriminate dumping of solid waste with the attendant environmental consequences has become one of the hydra-headed problems in urban area today. Unfortunately, the ancient city of Ibadan, with an unprecedented high rate of urban sprawl is presently in dire need of suitable dumpsite for proper disposal of her solid waste. The main focus of this study was to scientifically select potential areas for suitable dumpsite for solid waste in the city of Ibadan. The main data used for this study were Landsat image with a spatial resolution of 30 m; SRTM of 90m spatial resolution, ground control point (GCP) collected by ground point survey (using GPS) and base map of the study area. The maps were prepared by multi-criteria (overlay) analysis of Geoinformation techniques. The study revealed that suitable areas for waste dumpsite are scattered within Ona Ora, Oluyole, Egbeda, Ido and Lagelu (LGA).
An Appraisal of Spatial Distribution of Solid Waste Disposal Sites in Kano Metropolis, Nigeria
This paper describes a research project that has been conducted as part of the Kano Municipal waste management strategy. The aim is to quantify and to identify the existing locations of waste disposal sites by mapping their spatial distribution within the metropolitan Kano. QUICKBIRD satellite imageries; locations of existing waste disposal sites collected using Global Positioning System (GPS); and topographical map (1:5000 scale) of Kano metropolis were used to generate data for the study. The data were prepared and analysed using ArcMap 10.2.1 and Erdas Imagine 11 software to produce the spatial distribution maps for solid waste disposal sites within the metropolis. The result shows that out of the 300 existing waste disposal sites assessed, the city has fairly well-distributed waste disposal sites. Conversely, the disposal sites are more clustered in the centre of the metropolis than the outskirts. However, about 80 percent of the sites are either located very close to roads, settlements or water bodies. Also, while about 92 percent of the existing waste disposal locations are open space, only about 7 percent are containers (closed dumping sites). Correspondingly, about 89 percent are authorised dumping sites and only about 11 percent are unauthorised illegal. The study recommends that policymakers should intervene and relocate the existing unauthorized dump sites to more suitable areas.
Site Suitability Analysis for Municipal Solid Waste Disposal in Birnin Kebbi, Nigeria
Management of solid waste is one of the challenges facing most developing countries like Nigeria where there is no substantial National Waste Management Plan. This led to the practice of open dumping system, which is not environmentally sound and socially acceptable. Considering the nature of solid waste disposal in Nigeria, there is a need to utilize techniques and technology for effective decision making in selecting appropriate site for solid waste disposal. This aim of this paper lies in management of waste at its final destination or dumping grounds with the objective of locating the most suitable site for municipal solid waste disposal in Birnin Kebbi. Remote Sensing technology and Geographic Information System Multi-criteria evaluation method were employed to perform effective site suitability analysis of the study area. Landsat 8 OLI was used to generate needed data for this research. Buffer distance analysis and overlay operation were used to evaluate site suitability criteria considered for this research. The result achieved in this study generated maps that shows better site for urban solid waste disposal/landfill in Birnin Kebbi; these may help in finding a better approach to curtail the current challenges.
Management of waste is a global environmental issue that requires special attention for the maintenance of quality environment. It has been observed that amount, size, nature and complexity of waste generated by man are profoundly influenced by the level of urbanization and intensity of socio-economical development in a given settlement. The problem associated with its management ranges from waste generation, collection, transportation, treatment and disposal. The study involves a kind of multi-criteria evaluation method by using geographical
Solid waste disposal is a serious problem in the urban areas of Nigeria because of indiscriminate dumping. Particularly, Katsina-Ala Town has the problem of identifying suitable sites for solid waste disposal. The main objective of this study was to select potential areas suitable for solid waste disposal for Katsina-Ala Town. The main data used for this study were spot5 satellite image with a spatial resolution of 5m; digital elevation model (DEM) with 0.5 m spatial resolution, and ground control point (GCP) collected through ground point survey (GPS) and topographical map of the study area. The maps were prepared by overlay and suitability analysis using geographic information system (GIS) methods, remote sensing techniques and multi criteria analysis. Factors considered for MCE in this study includes; drainage, elevation, road network, important places and settlements. The final suitability map of the study area was prepared on Arc map and labelled as high, moderate, low. Results indicate in the total area suitable regions are 1.3% less suitable; 21.8% moderately suitable; and 0.37% most suitable. The most suitable areas for solid waste disposal fall on the north-eastern part of the town where there are least environmental and health risks. The GIS and remote sensing techniques are important tools for solid waste site selection. Hence, the capacity to use GIS and remote sensing technology for the effective identification of suitable solid waste dumping site will minimize environmental risk and human health problems.
Gis-Based System Analysis for Waste Bin Location in Enugu Municipality
Agricultural Engineering International: The CIGR Journal, 2020
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 Global Positioning System (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 Manual was used in determining the optimum location of bins. A total of 635 dumpsites were proposed with two 1 m 3 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.
Analysis and suitability modeling of solid waste disposal sites in Kano metropolis, Nigeria
Geocarto International, 2020
Municipal solid waste management is a global contemporary issue affecting cities' authorities. Like other major cities of the world, Kano metropolis, with a population of more than four million, is faced with serious solid waste management problems. This study assesses the suitability of existing locations of solid waste disposal sites within metropolitan Kano. Satellite imageries (Landsat, AsterDEM), GPS-locations of the waste disposal sites, and topographical map of Kano metropolis were used as data for this study. The data were modeled and analyzed using a multi-criteria decision technique. The output produces restriction and suitability maps for solid waste disposal within the metropolis. Results show that only 26 percent of the existing solid waste disposal sites are suitable, while 74 percent are unsuitable sites. The study recommends the relocation of those existing unsuitable solid waste disposal sites to more environmentally favorable sites as highlighted in this study.