Area selection for landfill installation using a composed approach: Case study in MirandÓpolis, São Paulo State, Brazil
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Data
2019-12-19
Autores
de CARVALHO, Mariana Barbosa [UNESP]
Giovanini Junior, Nelson [UNESP]
de LOLLO, José Augusto [UNESP]
Lima, César Gustavo da Rocha [UNESP]
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Resumo
The high population growth and the consequent increase in waste production have been a concern in the management and disposal of material, especially due to the constant reduction of environmentally adequate and logistically viable areas for the implementation of landfills. For the area selection various technical, legal and environmental aspects must be considered, which, if not correctly defined, can result in problems for the public administration, for the population, and for the environment. Thus, it is of general interest to develop methods to simplify decision making regarding the installation of solid waste deposits while maintaining the efficiency of the analysis process. This work developed a multicriteria decision analysis composed by the association of the weighting of environmental attributes, restrictive attributes (Legal) and logistic attributes for the pre-selection of suitable areas for the installation of a sanitary landfill in the city of Mirandópolis-SP, making use of Geographic Information System (GIS), application of Fuzzy logic, and weighting methods using algebra of maps. In the analysis, restrictive criteria were first considered, dividing the area of the county into suitable and unsuitable plots, later was conducted the classification of the suitable areas to identify which would be the most adequate to the installation of the landfill, based on parameters and weights found in the literature. It was verified that l ess than 40% of the total area of the municipality is suitable for the installation of landfills, and that the most adequate areas are located around the urban perimeter, especially to the northeast and southwest of it. The main advantage of the method adopted is to have its digital database easily available and publicly accessible, which, combined with digital techniques of spatial analysis, provided agility to the process. The objective of the used approach allows its application in other municipalities, making it a tool with potential usability for municipal public administration.
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Palavras-chave
Environment, GIS, Landfill, Logistics
Como citar
Geociencias, v. 38, n. 3, p. 717-729, 2019.