Analysis of Multi-Criteria Evaluation Method of Landfill Site Selection for Municipal Solid Waste Management (original) (raw)
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A review on criteria and decision-making techniques in solving landfill site selection problems
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The selection of landfill, which happens to be an environmental issue, has attracted the attention of many researchers from the fields of waste management and environmental sciences worldwide. Hence, in the attempt to overcome this problem, some decision-making techniques, including Geographic Information Systems (GIS) and Multi-Criteria Decision Analysis (MCDA), have been widely utilized in prior studies, where multiple criteria, particularly in site selection process, have been employed. With that, this article identifies the selection criteria for landfill selection and presents a review concerning decision-making techniques that have been used in past studies for two important phases involved during the process of site selection, namely, (1) preliminary site screening, and (2) assessment of site suitability. As such, some 82 articles chosen from 34 peer-reviewed journals had been investigated in detail. The results showed that 42.68% of the selected articles integrated GIS and M...
Waste management is a complex and detailed process that involves evaluation of certain important factors, such as a geological, geotechnical, hydrological, hydrogeological, climate, urban management, environmental, along with social, cultural, and psychological parameters. Unfortunately, in Iran, there is minimal evaluation of initial parameters and in some cases even don't exist. The purpose of this study is to conduct a landfill site selection based on engineering geological views. For this purpose, the Analytical Hierarchy Process (AHP), Multiple Criteria Decision Making (MCDM) and Geographic Information Systems (GIS) methods were used to select a suitable site for disposal of municipal solid waste (MSW) for the city of Maragheh, Iran. In order to make decision for landfill site selection, the focus was on multivariable function of the listed criteria. Each of these criteria is classified based on international guidelines (US environmental protection agency and technical committee on geotechnical landfill engineering), field studies, and laboratory tests. Based on the results, Three sites were recommended for municipal solid waste landfill (Sites 'A', 'B' and 'C'). From these sites, sampling and soil mechanics tests (sieve analysis and Atterberg limits) were conducted where categorised according to USCS classification system. Finally, with AHP and MCDM methods the 'Site A' was recommended as the best location for sanitary landfill.
Landfill site selection with GIS-based multi-criteria evaluation technique.pdf
2017
Given the potential negative environmental impacts linked with wild landfills in Béni Mellal-Khouribga Region, there is a significant need to accelerate the development of controlled intermunicipal landfills. Any landfill project requires identification of the most suitable sites to prevent environmental adversity. So, this study was conducted to identify candidate landfill sites using geographic information system (GIS) and multi-criteria evaluation techniques. Ten suitability criteria including distance to residential areas, aspect (wind), geology (lithology), distance to faults, distance to surface water, groundwater table, land use, distance to roads, elevation, and slope are considered in the siting assessment. The thematic maps of all criteria were prepared in GIS environment using Boolean and analytic hierarchy process (AHP) standardization. After hiding unsuitable areas of landfill sites identified by the Boolean method, each criterion was evaluated with the aid of AHP and the final landfill site suitability map was generated using the overlay analysis in GIS. The results showed that 54% of the study area is not suitable, 12% is lowly suitable, 24% is moderately suitable, and indeed 10% is highly suitable for landfilling. The identified suitable areas will require careful field studies before the final decision for landfill site selection. Nonetheless, this study can help planners and local and regional authorities to better manage the solid waste in the region.
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Abstract: The current system of selecting waste disposal sites in Kenya is manual, costly and time consuming. Computerizing the site selection process using Geographical Information System (GIS) can function as a decision support tool for improved efficient and effective municipal solid waste management. This study’s aim was to develop landfill siting by employing GIS-based Multi-Criteria Decision Analysis (MCDA) such as Analytical Hierarchy Process (AHP) for evaluating the suitability for landfill site selection in Nakuru Town. The initial step of the methodology was GIS based operation and analysis that excluded all areas unsuitable for waste disposal facility. The selection of suitable criteria for landfill site selection were generated based on pre-existing information published on landfill criteria, existing environmental laws and regulatory requirements, as well as the prevailing local conditions. Seven suitability criteria are identified; geology, soil, land use, slope, surfa...
Journal of Environmental Engineering and Landscape Management, 2018
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 sociol...
Selection of an Optimal Landfill Location Using the Multi-Criteria Decision Analysis Methods
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This paper identifies the components necessary to develop a decision analysis framework on issues concerning the selection of a landfill location, to facilitate the selection of a multi-criteria decision analysis process, and thereafter to provide guidance on the implementation of the selected multi-criteria decision analysis method within the larger context of the people, processes, and tools used in decision making. The main subject of research of this paper is the applicability of multi-criteria decision analysis methods for selection of an optimal landfill location considering the complexity of the problem influenced by numerous and sometimes even contradictory aspects.
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Solid waste management (SWM) is a significant aspect of infrastructure development and is linked in the direction of longterm sustainability and aids in reducing waste's social and economic repercussions of waste on the environment. Furthermore, the requirement is felt more acutely in developing nations as a result of increased trash generation as a result of poor waste management systems combined with rapid population expansion. Landfill sites are an inevitable element of a city's waste management; proper site selection is critical and has a significant impact on the city's physical, environmental, and socioeconomic aspects. Pre-existing conditions of Nepalese restructuring and capacity constraints in newly established municipalities have not been able to give sufficient answers to landfill site siting concerns in these towns. As a result, for complex decision-making, a reasonable strategy is required, necessitating input from diverse stakeholders and organizations in c...
Landfill site selection, a basis towards achieving sustainable waste management
Polish Journal of Environmental Studies, 2015
The improper collection and disposal of waste can cause serious problems in the near future. Unfortunately, in developing countries this issue has not been adequately addressed. The upward trend of waste production, on one hand, and lack of strategies to manage such materials, on the other hand, have been seen in many areas-especially metropolitan cities with serious problems-have led to a lot of environmental damage. Moreover, there are also some waste disposal drawbacks in cities. This study is a GIS approach aimed to perform a systematic landfill site selection study by introducing a decision support system for sustainable household waste management using a value-focused multi-criteria method. For this purpose, Sarab County was selected as a case study. The research shows how effective the multi-criteria method is in handling wide ranges of criteria involved in site selection studies.
MODELING LANDFILL SUITABILITY BASED ON MULTI-CRITERIA DECISION MAKING METHOD
ABSTRACT: Despite great efforts to reduce and recycle solid waste, landfill disposal is still the most preferable method of solid waste management. One major problem, however, concerns selecting an appropriate landfill site. This research aims to develop a landfill siting methodology employing GIS, and a multi-criteria decision making (MCDM) rule, consisting of analytical hierarchy processes (AHP) and weighted linear combinations (WLC). The proposed method was applied to the study area of the District of Klang, Selangor, Malaysia. Through this study, a few potential sites for a new landfill facility were identified by considering the various environmental, social and economic factors. The GIS is used for inputting, managing and visualizing the geographic data, while the AHP and WLC methods are employed for analyzing the data, to determine weights for the criteria, and to rank potential areas based on their suitability for landfill siting, according to suitability index (SI) values. Application of the presented method indicated 5 potential sites for landfill with SI values ranging from 2.67 to 4.00. The results show that the use of GIS along with the MCDM method provides a very useful decision support system for policy makers in solid waste management issues. KEYWORDS: GIS; analytical hierarchy process (AHP); weighted linear combinations (WLC); landfill siting
APPLICATION OF GIS IN LANDFILL SITE SELECTION FOR SOLID WASTE MANAGEMENT IN AN URBAN ENVIRONMENT
APPLICATION OF GIS IN LANDFILL SITE SELECTION FOR SOLID WASTE MANAGEMENT IN AN URBAN ENVIRONMENT, 2020
Less economically developed countries are facing challenges resulting from poor solid waste management due to a number of reasons such as the rise in urban population, the construction era, industrial growth, and unsustainable consumption practices. Site selection of waste disposal and waste management for developing countries always pose major challenges. The application of Geographical Information Systems (GIS) and Multi-Criteria Decision Analysis (MCDA) in the location of landfills is still in its infancy. In this study we tested the suitability of pre-existing landfill locations by comparing them with the newly located landfills in the study area. In order to locate the sites of appropriate landfills, applied the Analytic Hierarchy Process (AHP) model of MCDA during criteria evaluation to give each criterion weight matching its importance. Our findings show that most suitable landfill sites constitute a low percentage (0.11%) than unsuitable area (91.95%). The Jaccard test produced an overlap of 22.72% and high deviation between the newly located landfills and the pre-existing Pomona landfill. Comparisons of the extent of suitable area for landfill site selection show that the proportions differ significantly (χ2 = 7305.8, df=2, p<0.0001). Our study is a cost effective verifiable tool in landfill site selection and assessing suitability of landfills to make economic and environmentally conscious decisions so as to ensure minimum damage to the environment.