MULTICRITERIA ANALYSIS AND GEOPROCESSING IN THE SELECTION OF AREAS FOR LANDFILLS IN THE SOUTHERN AREA OF RIDE/DF
MULTICRITERIA ANALYSIS AND GEOPROCESSING IN THE SELECTION OF AREAS FOR LANDFILLS IN THE SOUTHERN AREA OF RIDE/DF
DOI:
https://doi.org/10.51473/rcmos.v1i2.2024.771Keywords:
Solid waste. Sanitary landfill. Analytic Hierarchy Process.Abstract
Population growth and changes in consumption patterns are the main activities contributing to the increase in the generation of Urban Solid Waste (USW). With the significant increase in USW generation, these wastes, in most Brazilian cities, are disposed of in an entirely inadequate manner, such as in open-air dumps, putting the environment as a whole at risk. This situation is evident in the Integrated Region of the Federal District and Surrounding Areas (RIDE), a region consisting of 22 municipalities and the Federal District. This research aimed to select suitable areas for sanitary landfills in the southern part of RIDE/DF to assist in the management of USW in the region. For this, maps of land use and land cover on a multi-temporal scale were produced, and criteria were defined, which were weighted by experts through the application of questionnaires. The weights of the criteria were calculated using the Analytic Hierarchy Process (AHP) methodology. The criteria, represented as geographic data layers, were standardized and combined using the Weighted Linear Combination (WLC) method to produce the map of potential areas for sanitary landfills. Four alternatives for landfill areas were defined, and through multi-criteria methodology, alternative 1, located 27 km south of Luziânia, was selected. The results indicate that the proposed objectives were achieved, and the AHP method integrated with GIS provides a procedure for the precise location of areas for landfills that should meet the needs of all stakeholders.
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