A major challenge in most growing urban areas of developing countries, without a pre-existing land use plan is the sustainable and efficient management of solid wastes. Siting a landfill is a complicated task because of several environmental regulations. This challenge gives birth to the need to develop efficient strategies for the selection of proper waste disposal sites in accordance with all existing environmental regulations. This paper presents a knowledge-based multi-criteria decision analysis using GIS for the selection of suitable landfill site in Ado-Ekiti, Nigeria. In order to identify suitable sites for landfill, seven factors - land use/cover, geology, river, soil, slope, lineament and roads - were taken into consideration. Each factor was classified and ranked based on prior knowledge about the area and existing guidelines. Weights for each factor were determined through pair-wise comparison using Saaty’s 9 point scale and AHP. The integration of factors according to their weights using weighted index overlay analysis revealed that 39.23 km2 within the area was suitable to site a landfill. The resulting suitable area was classified as high suitability covering 6.47 km2 (16.49%), moderate suitability 25.48 km2 (64.95%) and low suitability 7.28 km2 (18.56%) based on their overall weights.
If the inline PDF is not rendering correctly, you can download the PDF file here.
 Sener B. Suzen M.L. Doyuran V.(2006): Landfill site selection by using geographic information systems. Environ Geol 49 376-388. DOI: 10.1007/s00254-005-0075-2.
 Tchobanoglous G. Kreith F. (2002): Handbook of solid waste management. McGraw Hill New York.
 Kouznetsova M. Hauang X. Ma J. Lessner L. Carpenter D. (2007): Increased rate of hospitalization for diabetes and residential proximity of hazardous waste sites. Environmental Health Perspectives 115 75.
 Kao J.J. Lin H. (1996): Multifactor spatial analysis for landfill siting. J Environ Eng 122(10) pp. 902-908.
 Lober D.J. (1995): Resolving the siting impasse: modeling social and environmental locational criteria with a geographic information system. J Am PlannAssoc 61(4) pp. 482-495.
 Erkut E. Moran S.R. (1991): Locating obnoxious facilities in the public sector: an application of the hierarchy process to municipal landfill siting decisions. SocioeconPlannSci 25(2) pp. 89-102.
 Chiueh P.T. Lo S.L. Chang C.L. (2008): A GIS-based system for allocating municipal solid waste incinerator compensatory fund. Waste Management 28 pp. 2690-2701.
 Ishizaka K. Tanaka M. (2003): Resolving public conflict in site selection process - risk communication approach. Waste Management 23 pp. 385-396.
 Kontos T.D. Komilis D.P. Halvadakis C.P. (2003): Siting MSW landfills on Lesvos Island with a GIS based methodology. Waste Management & Research 21 pp. 262-277.
 Anifowose Y.B. Omole K.E. Akingbade O. (2011): Waste Disposal Site Selection using Remote Sensing and GIS: A Study of Akure and its Environs Southwest- Nigeria. Proceedings of the Environmental Management Conference Federal University of Agriculture.
 Malczewski J. (1997):. Propagation of errors in multicriteria location analysis: a case study. In: Fandel G Gal T (eds) Multiple criteria decision making. Springer Berlin Heidelberg New York pp. 154-155.
 Saaty T.L. (2008): Decision making with Analytic Hierarchy Process. Int. J. Services Sciences 1(1) p. 16.
 Evans A.J. Kingston R. Carver S. (2004): Democratic input into the nuclear waste disposal problem: the influence of geographical data on decision making examined through a web-based GIS. Journal of Geographical Systems 6 pp. 117-132.
 Jankowski P. Robischon S. Tuthill D. Nyerges T. Ramsey K. (2006): Design considerations and evaluations of a collaborative spatio-temporal decision support system. Transactions in GIS 10 pp. 335-354.
 Makropoulos C. Butler D. Maksimovic C.(2003): A fuzzy logic spatial decision support system for urban water management. Journal of Water Resources Planning and Management 129 pp. 69-77.
 Anifowose A.Y. B. Aladejana O. O (2015):Evaluation of Groundwater Potential of a Basement Complex Environment Using Geoinformation Technology (A Framework for Water Development in Developing Countries). GEO OBSERVATEUR NO 22 Journal of Moroccan Centre for Remote Sensing Rabat Morocco pp. 17-28.
 Jankowski P. (2000): Collaborative spatial decision making in environmental restoration management: an experimental approach. Journal of Hydroinformatics 2 pp. 197-206.
 Boroushaki S. Malczewski J. (2010): Using the fuzzy majority approach for GIS based multicriteria group decision-making. Computers and Geosciences 36 pp. 302-312.
 Jiang H. Eastman R.J. (2000): Application of fuzzy measures in multi-criteria evaluation in GIS. International Journal of Geographical Information Systems 14 pp. 173-184.
 Malczewski J. (2006): Ordered weighted averaging with fuzzy quantifiers: GIS-based multicriteria evaluation for land-use suitability analysis. International Journal of Applied Earth Observation and Geoinformation 8 pp. 270-277.
 Gorsevski P.V. Jankowski P. (2010): An optimized solution of multi-criteria evaluation analysis of landslide susceptibility using fuzzy sets and Kalman filter. Computers and Geosciences 36 pp. 1005-1020.
 Gorsevski P.V. Jankowski P. Gessler P.E. (2006):An heuristic approach for mapping landslide hazard by integrating fuzzy logic with analytic hierarchy process. Control and Cybernetics 35 pp. 121-146.
 Chang N.B. Parvathinathan G. Breedenc J.B. (2008): Combining GIS with fuzzy multicriteria decision- making for landfill siting in a fast-growing urban region. Journal of Environmental Management 87 pp. 139-153.
 Delgado B.O. Mendoza M. Lopez-Granados E. Geneletti D. (2008): Analysis of land suitability for the siting of inter-municipal landfills in the Cuitzeo Lake Basin Mexico. Waste Management 28 pp. 1137-1146.
 Geneletti D. (2010): Combining stakeholder analysis and spatial multicriteria evaluation to select and rank inert landfill sites. Waste Management 30 pp. 328-337.
 Moeinaddini M. Khorasani N. Danehkar A. Darvishsefat A.A. Zienalyan M. (2010):Siting MSW landfill using weighted linear combination and analytical hierarchy process (AHP) methodology in GIS environment (case study: Karaj). Waste Management 30 pp. 912-920.
 Nema K.M. Gupta S.K. (1999): Optimization of regional hazardous wastemanagement systems: an improved formulation. Waste Management 19 pp. 441-451.
 Zamorano M. Molero E. Hurtado A. Grindlay A. Ramos A. (2008): Evaluation of a municipal landfill site in Southern Spain with GIS-aided methodology. Journal of Hazardous Materials 160 pp. 473-481.
 Ahmad A. Bayen A. Akihiko K. (2011):Using GISBased Weighted Linear Combination Analysis and Remote Sensing Techniques to Select Optimum Solid Waste Disposal Sites within Mafraq City Jordan. Journal of Geographic Information System 3 pp. 267-278.
 Shahabi. H. Allahvirdiasl H. Ali zadeh. M. (2012): Application of GIS Models in Site selection of waste disposal in Urban Area. IOSR Journal of Applied Physics (IOSRJAP) 1(6) p. 0107.
 Adeofun C.O. Achi H.A. Ufoegbune G.C. Gbadebo A.M. Oyedepo J.A. (2011): Application of Remote Sensing and Geographic Information System for selecting Dumpsites and Transport Routes in Abeokuta Nigeria. Proceedings of the Environmental Management Conference Federal University of Agriculture Abeokuta Nigeria.
 Muhammed M. Oyebode T.S. Bello A.H. Bako M.M. (2015): Mapping and Identification of Suitable Dumping Sites for Solid Waste Management in Gwagwalada Area Council of the F.C.T. Nigeria. Journal of Environment and Earth Science 5(17) pp. 154-161.
 Oyinloye M.A. Fasakin J.O. (2013): Application of Geographical Information System (GIS) for Siting and Management of Solid Waste Disposal in Akure Nigeria. IOSR Journal of Environmental Science Toxicology and Food Technology 4(2) pp. 06-17.
 Babalola. A. Busu. I. (2011): Selection of Landfill Sites for Solid Waste Treatment in Damaturu Town Using GIS Techniques. Journal of Environmental Protection pp. 2-10.
 Olusina J.O. Shyllon D.O. (2014): Suitability Analysis in Determining Optimal Landfill Location Using Multi-Criteria Evaluation (MCE) GIS & Remote Sensing. International Journal of Computational Engineering Research 4(6) pp. 7-20.
 Rahaman M.A. (1988): Recent Advances in the study of the basement complex of Nigeria. In: (Ed) Precambrian Geol Nigeria. Geological Survey of Nigeria pp. 11-43.
 Dada S.S. (2006): Proterozoic Evolution of Nigeria. In: Oshin. O (Ed) The Basement Complex of Nigeria and its mineral resources (A Tribute to Prof. M.A.O. Rahaman). AkinJinad & Co. Ibadan pp. 29-44.
 Rahaman M.A. (1974): Review of the Basement Geology of South Western Nigeria. In: Kogbe CA (Ed) Geology of Nigeria. Elizabethan Publishing Lagos pp. 41-58.
 Smyth A.J. Montgomery R.F. (1962): Soils and Land use in central western Nigeria. The Government Printers Ibadan Western Nigeria 265p.
 Environmental Protection Agency. (2006):EPA Landfill Manuals Manual on Site Selection.
 Saaty T.L. (1980): The analytic hierarchy process McGraw- Hill New York.
 Coyle G. (2004): The Analytic Hierarchy Process (AHP). In Practical Strategy. Pearson Education Limited.
 Sani Y. Noordin A. Ranya F.A. (2010):Multicriteria analysis for flood vulnerable areas in Hadejia-Jama’ are river basin Nigeria; European J. Sci. Res. 42(1) pp. 71-83.
 Mallast U. Gloaguen R. Geyer S. Rödiger T. Siebert C. (2011): Derivation of groundwater flow-paths based on semi-automatic extraction of lineaments from remote sensing data. Hydrology and Earth System Sciences. Doi: 10.5194/hess-15-2665-2011.
 Edet A.E. Okereke C.S. Teme S.C. Esu E.O. (1998): Application of remote sensing data to groundwater exploration: a case study of the cross-river state Southeastern Nigeria. Hydrogeol J. 6 pp. 394-404.
 Mogaji K.A. Omosuyi G.O. Adelusi A.O. Lim H.S. (2016): Application of GIS-Based Evidential Belief Function Model to Regional Groundwater Recharge Potential Zones Mapping in Hardrock Geologic Terrain. Environ. Process. 3:93-123. DOI 10.1007/ s40710-016-0126-6.
 Mogaji K.A. Aboyeji O.S. Omosuyi G.O. (2011): Mapping of lineaments for groundwater targeting in the basement complex region of Ondo State Nigeria using Remote Sensing and Geographic Information System (GIS) Techniques. International Journal of Water Resources and Environmental Engineering 3(7) pp. 150-160.
 Zevenbergen L.W. Thorne C.R. (1987): Quantitative analysis of land surface topography. Earth Surface Processes and Landforms 12 pp. 12-56.