Site selection of municipal solid waste landfills using analytical hierarchy process method in a geographical information technology environment in giroft
As an outstanding sample of being contaminated with different kinds of anthropogenic manipulations, environment is successively encountered with ever increasing rate of manmade waste generation. Municipal solid waste generation is among the most significant sources that threaten the global environmental health. Accordingly, it is essential that integrated systems of waste management be considered within the path towards achieving sustainable development. Such systems generally emphasize on functional elements of waste minimization (reduction), reuse, recycle and finally placing the remained material in landfills (Leao et al., 2004). As sanitary landfilling is an inevitable part of MSW (municipal solid waste) management system (Tchobanoglous et al., 1993), appropriate site selection of landfills may play a key role in reducing the environment contamination. Landfill has become more difficult to implement, residents opposition and environmental contamination. Land is among invaluable and finite resources that must be used shrewdly. As an ideal selection depends on considering several independent factors concerning land use, socio economy, hydrogeology, etc. the use of a multi criteria evaluation (MCE) method seems inevitable. Taking benefit of Geographic Information System (GIS) as a tool in combination with geographical information technology (GIT) equips the spatial decision support systems (SDSS) in appropriate site selection of sanitary landfills.