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Sanitary landfill site selection by integrating AHP and FTOPSIS with GIS: a case study of Memari Municipality, India

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Abstract

Sanitary landfill is still considered as one of the most significant and least expensive methods of waste disposal. It is essential to consider environmental impacts while selecting a suitable landfill site. Thus, the site selection for sanitary landfill is a complex and time-consuming task needing an assessment of multiple criteria. In the present study, a decision support system (DSS) was prepared for selecting a landfill site in a growing urban region. This study involved two steps of analysis. The first step of analysis involved the application of spatial data to prepare the thematic maps and derive their weight. The second step employed a fuzzy multicriteria decision-making (FMCDM) technique for prioritizing the identified landfill sites. Thus, initially, the analytic hierarchy process (AHP) was used for weighting the selected criteria, while the fuzzy technique for order of preference by similarity to ideal solution (FTOPSIS) was applied for addressing the uncertainty associated with decision-making and prioritizing the most suitable site. A case study was conducted in the city of Memari Municipality. The main goal of this study was the initial evaluation and acquisition of landfill candidate sites by utilizing GIS and the following decision criteria: (1) environmental criteria consisting of surface water, groundwater, land elevation, land use land cover, distance from urban residence and buildup, and distance from sensitive places; and (2) socioeconomic criteria including distance from the road, population density, and land value. For preparing the final suitability map, the integration of GIS layers and AHP was used. On output, 7 suitable landfill sites were identified which were further ranked using FTOPSIS based on expert’s views. Finally, candidate site-7 and site-2 were selected as the most suitable for proposing new landfill sites in Memari Municipality. The results from this study showed that the integration of GIS with the MCDM technique can be highly applied for site suitability. The present study will be helpful to local planners and municipal authorities for proposing a planning protocol and suitable sites for sanitary landfill in the near future.

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Data availability

The datasets used and/or analyzed during the current study are available from the corresponding author on reasonable request.

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Acknowledgments

The authors are highly thankful to the municipal authorities for providing information, maps, relevant data, and sharing issues regarding new landfill site selection in the study area. We also acknowledge four anonymous reviewers, the managing editor, and the editor-in-chief for their valuable time, productive comments, and suggestions during the review which helped in improving the overall quality of the manuscript.

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Authors

Contributions

SAA and FP prepared the data, developed the methodology, analyzed the data, and wrote the original draft regarding the sanitary landfill site selection. NA, QBP, AA, and MSR analyzed the data and critically reviewed the manuscript. DTA, LHB, and VNT revised the manuscript. QBP is the supervisor for the project. All authors read and approved the final manuscript.

Corresponding author

Correspondence to Quoc Bao Pham.

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The present study ensures that the objectivity and transparency are followed in this research along with acknowledged principles of ethical and professional behavior.

Competing interests

The authors declare that they have no conflict of interest.

Research involving human participants and/or animals

Human participants or animals were not engaged or involved in the present research. Therefore, for this study, compliance with ethical standards is not applicable.

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Responsible Editor: Philippe Garrigues

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Highlights

• Landfill site selection is a global concern in order to reduce environmental and health issues.

• Multicriteria decision analysis is the best and accepted technique for landfill site selection.

• Fuzzy removes bias and ambiguity from decision criteria and offers the best evaluation result.

• Geographic information system offers accurate spatial analysis for solving a defined problem.

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Ali, S.A., Parvin, F., Al-Ansari, N. et al. Sanitary landfill site selection by integrating AHP and FTOPSIS with GIS: a case study of Memari Municipality, India. Environ Sci Pollut Res 28, 7528–7550 (2021). https://doi.org/10.1007/s11356-020-11004-7

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  • DOI: https://doi.org/10.1007/s11356-020-11004-7

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