Landfill site selection using GIS and multi-criteria decision-making. Case study of a region in Morocco

A shortage of land for waste disposal is one of the serious problems that faces urban areas in developing countries. The Sulaimaniyah Governorate, located in the north of Iraq, is one of the major cities in the Kurdistan Region of the country, covering an area of 2400 km2 with a population of 856,990 in 2016. Currently, there is no landfill site in the study area that meets scientific and environmental criteria, and inappropriate solid waste dumping is causing negative environmental impacts. The process of landfill site selection is considered a complex process and is restricted by numerous factors and regulations. This paper proposes multi-criteria decision-making (MCDM) methods in a model for landfill site decision. The model assumes the input of two groups of factors that need to satisfy the optimal values of weight coefficients. These groups of constants are natural factors and artificial factors, and they included thirteen selected criteria: slope, geology, land use, urban area, villages, rivers, groundwater, slope, elevation, soil, geology, road, oil and gas, land use, archaeology and power lines. The criteria were used in the geographic information system (GIS), which has a high capacity to process and analyze various data. In addition, multi-criteria decision-making (MCDM) methods followed by the weighted linear combination (WLC) method were used to derive criteria weightings using a matrix of pair-wise comparison. Finally, all the multi criteria decision methods were combined to obtain an intersection of the suitability index map for candidate landfill sites. Seven appropriate sites for landfill were suggested, all of which satisfied the scientific and environmental criteria which were adopted in this study.

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A framework for landfill site selection using geographic information systems and multi criteria decision making technique

10.1063/1.4966078 ◽

2016 ◽

Cited By ~ 2

Author(s):

Nur Azriati Mat ◽

Aida Mauziah Benjamin ◽

Syariza Abdul-Rahman ◽

Antoni Wibowo

Keyword(s):

Decision Making ◽

Information Systems ◽

Geographic Information Systems ◽

Site Selection ◽

Geographic Information ◽

Landfill Site ◽

Multi Criteria Decision Making ◽

Landfill Site Selection

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MUNICIPAL SOLID WASTE LANDFILL SITE SELECTION USING MULTI-CRITERIA DECISION MAKING AND GIS: CASE STUDY OF BURSA PROVINCE

Journal of Environmental Engineering and Landscape Management ◽

10.3846/16486897.2017.1364646 ◽

2018 ◽

Vol 26 (2) ◽

pp. 107-119 ◽

Cited By ~ 12

Author(s):

Volkan Yildirim ◽

Tugba Memisoglu ◽

Sevket Bediroglu ◽

H. Ebru Colak

Keyword(s):

Decision Making ◽

Municipal Solid Waste ◽

Solid Waste ◽

Site Selection ◽

Landfill Site ◽

Geographical Information ◽

Municipal Solid Waste Management ◽

Multi Criteria Decision Making ◽

Landfill Site Selection ◽

Waste Landfill

Rapid population growth, economic development and industrialization have created many problems related to municipal solid waste management (MSWM) in developing countries like Turkey. Solid waste disposal has become mandatory because of increasingly common factors such as global warming and contamination of water resources. In recent years, this situation has revealed the need for effective management of solid waste. Suitable site selection requires evaluation and analysis of multiplefactor. Therefore, it is very important that the design of landfill site selection take into account environmental, economical and sociologicalfactors. In order to do this, the Geographical Information System (GIS) used with Multi Criteria Decision Making (MCDM) techniques is a useful tool for creating a model. One such MCDM is the Spatial-integrated Technique for Order Preference by Similarity to Ideal Solution (TOPSIS). In this study, TOPSIS was applied to integrate environmental, economical and sociological sensitivity into determine alternative solid waste landfill sites for Bursa Province, Turkey. Using the data obtained by comparing the geo-statistics, six of the most suitable landfill areas were determined. In the final stage, as a result of this study, the Kayapa district was identified as the most suitable landfill area.

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Coupling Fuzzy Multi-Criteria Decision-Making and Clustering Algorithm for MSW Landfill Site Selection (Case Study: Lanzhou, China)

ISPRS International Journal of Geo-Information ◽

10.3390/ijgi10060403 ◽

2021 ◽

Vol 10 (6) ◽

pp. 403

Author(s):

Jiamin Liu ◽

Yueshi Li ◽

Bin Xiao ◽

Jizong Jiao

Keyword(s):

Decision Making ◽

Clustering Algorithm ◽

Fuzzy Membership Function ◽

Multi Criteria Decision Making ◽

Landfill Site Selection ◽

Spatial Distribution Characteristics ◽

Criteria Weights ◽

Spatial Decision Making ◽

Complex Decision

The siting of Municipal Solid Waste (MSW) landfills is a complex decision process. Existing siting methods utilize expert scores to determine criteria weights, however, they ignore the uncertainty of data and criterion weights and the efficacy of results. In this study, a coupled fuzzy Multi-Criteria Decision-Making (MCDM) approach was employed to site landfills in Lanzhou, a semi-arid valley basin city in China, to enhance the spatial decision-making process. Primarily, 21 criteria were identified in five groups through the Delphi method at 30 m resolution, then criteria weights were obtained by DEMATEL and ANP, and the optimal fuzzy membership function was determined for each evaluation criterion. Combined with GIS spatial analysis and the clustering algorithm, candidate sites that satisfied the landfill conditions were identified, and the spatial distribution characteristics were analyzed. These sites were subsequently ranked utilizing the MOORA, WASPAS, COPRAS, and TOPSIS methods to verify the reliability of the results by conducting sensitivity analysis. This study is different from the previous research that applied the MCDM approach in that fuzzy MCDM for weighting criteria is more reliable compared to the other common methods.

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