Application of geographic information system to solid waste management

Author(s):  
A.F. Thompson ◽  
A.H. Afolayan ◽  
E.O. Ibidunmoye
2020 ◽  
Vol 15 (3) ◽  
pp. 96-101
Author(s):  
Oluwaseyi Joseph Afolabi

With an unprecedented population and rapid urbanization, the solid waste collection and transportation has become a major challenge in Lagos metropolis. The main objective of the study was to optimize routes for solid waste collection and disposal using Geographic Information System (GIS) in order to improve solid waste management system in Lagos metropolis. Data on the GIS Network Analyst was used to determine movements between the transfer loading stations and the landfills to determine the collection time, travel distances, optimized routes and alternative routes for solid waste disposal while maximising total solid waste collection and disposal for environmental sustainability. Based on the findings, the study therefore recommends possible interventions such as regular collection of solid waste, proper management of the transfer loading stations and landfills, and that the collection of solid waste should be given more attention because it is important in the development of cities. Keywords: Solid wastes, Transportation, Route Optimization, GIS, Lagos metropolis


2019 ◽  
Vol 45 (3) ◽  
pp. 273-286
Author(s):  
Diogo Appel Colvero ◽  
Ana Paula Duarte Gomes ◽  
Luís António da Cruz Tarelho ◽  
Manuel Arlindo Amador de Matos ◽  
José Carlos Martins Ramalho

Most Brazilian municipalities are small, i.e., with less than 50,000 inhabitants. In the State of Goiás, for example, 91% of the municipalities are small. Of these, only 4% have their municipal solid waste (MSW) disposed in authorized landfills. Thus, the present study aimed to propose a municipal solid waste management facility (MSWMF) shared between two small municipalities of the microregion of Chapada dos Veadeiros, in Northeast Goiás. The reason for selecting this microregion is that it is composed only of small municipalities that use waste dumps for the disposal of their MSW. For this purpose, the areas subject to approval or restricted for the installation of a MSWMF were identified with the aid of a geographic information system (GIS). Also, the host municipality (HM) of the MSWMF proposed for Campos Belos and Monte Alegre de Goiás was defined with the use of mass geometry methodology. According to the results obtained, 59% of the territories of these two municipalities that will integrate the proposed MSWMF are restricted for the installation of landfills, and Monte Alegre de Goiás was selected to host the landfill.


2018 ◽  
Vol 77 ◽  
pp. 500-515 ◽  
Author(s):  
Diogo Appel Colvero ◽  
Ana Paula Duarte Gomes ◽  
Luís António da Cruz Tarelho ◽  
Manuel Arlindo Amador de Matos ◽  
Kamila Almeida dos Santos

Solid waste is a waste generated every day. The amount of solid waste generation depends on the total area of housing and services, the area of the places, and activities. The increase in population, housing and services in the area has resulted in the generation of solid waste. The solid waste should be disposed of to prevent the spread of disease and to keep the environment clean. Normally, solid waste will be disposed of in landfill sites. In four districts in Negeri Sembilan that is Jelebu, Jempol, Kuala Pilah and Tampin, the existing landfill in these areas have reached semi-critical status and the capacity is about to reach the maximum level. Therefore, this study was undertaken to proposed the most ideal and effective new solid waste landfill based on the distribution of housing in an area using the Geographic Information System (GIS). GIS serves as a hardware device that stores information and databases of the area and analyzes data to produce the output required by the user. In addition, this study was conducted to investigate and determine the criteria and weighting factors taken into account in determining the location of landfill sites. In addition, this study also conducted to identify the optimization of disposal of solid waste and the type of new landfill proposed. Some analyzes such as Analysis Geoprocessing, Model Builder, OD Cost Matrix, Network Analyst and Service Area has been carried out to obtain an ideal location to serve as a solid waste disposal site. Based on the analysis, the new landfill can cover 242 of housing areas within 25 kilometers from the landfill compared to the existing landfill that only covered 165 of housing areas only. Finally, the siting of the landfill using GIS application is the best system in helping the user to determine the new landfill in such a fastest way.


2021 ◽  
Vol 234 ◽  
pp. 00066
Author(s):  
Ahmed Ait Errouhi ◽  
Jihane Gharib ◽  
Yassir Bouroumine ◽  
Anas Bahi

Depending on the technical, institutional, economic and social limits of developing countries, as well as the population density in cities, nowadays, the volume of urban waste has increased considerably, and the management of this waste contributes to climate change, and air pollution, it directly affects many ecosystems and many species. Waste management faces serious problems such as irregular collection, informal sweeping activities, uncontrolled dumping and proliferation of illegal dumping. The latter constitute a real and permanent threat to the quality of life, this exponential increase in the urban population and the resulting accelerated phenomenon of urbanization have highlighted the need to develop sustainable and efficient waste management systems. Stakeholders are therefore required to consider alternative and available means of disposal, in particular by minimizing the damage caused to the ecosystem and to the human population, among these means of disposal, controlled landfills, considered as the last option in the waste hierarchy. In this study, attempts were made to locate a new landfill in Oum Azza using the AHP multi-criteria decision-making method to assess the different criteria considered during the prospecting and combining them with the geographic information system to acquire the results in the form of maps displayed on the optimal sites to house a new controlled landfill and minimize its terrible impact on the environment.


2018 ◽  
Vol 36 (7) ◽  
pp. 606-615 ◽  
Author(s):  
Luciana MG Spigolon ◽  
Mariana Giannotti ◽  
Ana P Larocca ◽  
Mario AT Russo ◽  
Natália da C Souza

Sanitary landfill remains the most common methodology for final treatment and disposal of municipal solid waste worldwide, the cost per tonne depends on its scale. The bigger the landfill, the cheaper the cost of treatment, so the consortium of municipalities is the solution to achieve an economic scale. However, the growth of waste production introduces pressure for adequate solutions and therefore has been increasing sanitary landfill site selection studies. This study proposes a methodology for siting sanitary landfills and optimising the transport of municipal solid waste for a locality in the state of São Paulo, Brazil. Environmental, social, and economic criteria were established. Their correlated attributes were categorised into suitability levels and weighted according to multiple decision analysis. The data were organised and mapped within a geographic information system. Considering sites where landfills are prohibited, two scenarios were generated. The Mixed-Integer Quadratic Programming mathematical model is used to minimise the costs of transporting municipal solid waste and operating sanitary landfills. In Scenario 1, the results indicated that 64% of the area was suitable as a potential sanitary landfill site, 9% of the area exhibited medium suitability, and 27% of the area was classified as restricted. In Scenario 2, the results indicated that 25% of the area was suitable as a potential sanitary landfill site, 4% of the area had medium suitability, and 71% of the area was classified as restricted. The optimal solutions for Scenario 1 and Scenario 2 enabled sites to be determined for five landfills and four landfills, respectively.


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