SIG aplicado na pré-seleção de áreas para a implantação de aterro sanitário no município de Breves (PA)

Abstract

The inadequate location of the final solid residual disposal is a big problem that can compromise the environmental resources. In Breves city (PA) was developed and applied an area location methodology to implementation de sanitary landfill, using geoprocessing techniques, through Geographic Information System - GIS.In the maps confection were used data shapes from IBGE (2010) in the basic scale 1: 250.000 together with images from do Google Earth and processed using the software Arcgis 10.1. Two buffers delimited respectively from the municipal headquarters from na are of 20 km ray and inside this limite by conditioning environmental questions and flight security, in a 13 km ray to the airport. With the overlap of these upcoming community areas were excluded (500 m) and surface water bodies (200m); and prioritized anthropized and access roads already in place. Three areas were pre-selected. In a second phase these pre-selected areas received grades in own criteria: (a) the proximity of the housing communities; (b) the distance from the surface water sources; (c) the soil characteristics of the land available; and (d) the size of pre-selected areas. The area with the largest amount of notes was chosen as the best among the pre-selected ones. Concluding, it is recommended the methodology applied, for convenience and economy, seen the necessity of dislocation of the teams to the selected place only to prove the facts.