Siting MSW landfill using weighted linear combination and analytical hierarchy process (AHP) methodology in GIS environment (case study: Karaj).

Selection of landfill site is a complex process and needs many diverse criteria. The purpose of this paper is to evaluate the suitability of the studied site as landfill for MSW in Karaj. Using weighted linear combination (WLC) method and spatial cluster analysis (SCA), suitable sites for allocation of landfill for a 20-year period were identified. For analyzing spatial auto-correlation of the land suitability map layer (LSML), Maron's I was used. Finally, using the analytical hierarchy process (AHP), the most preferred alternative for the landfill siting was identified. Main advantages of AHP are: relative ease of handling multiple criteria, easy to understand and effective handling of both qualitative and quantitative data. As a result, 6% of the study area is suitable for landfill siting and third alternative was identified as the most preferred for siting MSW landfill by AHP. The ranking of alternatives were obtained only by applying the WLC approach showed different results from the AHP. The WLC should be used only for the identification of alternatives and the AHP is used for prioritization. We suggest the employed procedure for other similar regions.

[1]  Guiqin Wang,et al.  Landfill site selection using spatial information technologies and AHP: a case study in Beijing, China. , 2009, Journal of environmental management.

[2]  Mehdi Gholamalifard,et al.  Siting MSW landfills with a weighted linear combination methodology in a GIS environment , 2006 .

[3]  Waldo R. Tobler,et al.  Geographical Filters and their Inverses , 2010 .

[4]  Paul M. Mather.  Computer Applications in Geography , 1991 .

[5]  Daniel A. Griffith,et al.  Statistical analysis for geographers , 1990 .

[6]  Thomas L. Saaty,et al.  Multicriteria Decision Making: The Analytic Hierarchy Process: Planning, Priority Setting, Resource Allocation , 1990 .

[7]  G. Dörhöfer,et al.  The search for landfill sites – requirements and implementation in Lower Saxony, Germany , 1998 .

[8]  George Tchobanoglous,et al.  Integrated Solid Waste Management: Engineering Principles and Management Issues , 1993 .

[9]  J. Murry,et al.  Delphi: A Versatile Methodology for Conducting Qualitative Research , 2017 .

[10]  Usha Natesan,et al.  GIS-based approach for optimized siting of municipal solid waste landfill. , 2008, Waste management.

[11]  Jess W. Everett,et al.  Landfill Siting Using Geographic Information Systems: A Demonstration , 1996 .

[12]  D. Komilis,et al.  Siting MSW landfills with a spatial multiple criteria analysis methodology. , 2005, Waste management.

[13]  M. Nyeko.  GIS and Multi-Criteria Decision Analysis for Land Use Resource Planning , 2012 .

[14]  Thomas L. Saaty,et al.  On the relativity of relative measures - accommodating both rank preservation and rank reversals in the AHP , 2000, Eur. J. Oper. Res..

[15]  M. van Herwijnen,et al.  Spatial decision support systems , 2002 .

[16]  Omar Al-Jarrah,et al.  Municipal solid waste landfill siting using intelligent system. , 2006, Waste management.

[17]  Ian D. Bishop,et al.  Assessing the demand of solid waste disposal in urban region by urban dynamics modelling in a GIS environment , 2001 .