Abstract. Open dumping is the common procedure for final disposal of municipal solid waste (MSW) in Iran. Several environmental pollution and soil degradation problems were found as a consequence of poor planning of landfills. So recognition of the MSW landfill state is required to prevent environmental problems. The objective of this research was to study the suitability of existing municipal landfill sites using geographic information system methods. Tonekabon city in the west area of Mazandaran province, northern Iran, along the southern coast of the Caspian Sea, was chosen as a case study. In order to carry out this evaluation, two guidelines were used: Minnesota Pollution Control Agency (MPCA) and regional screening guidelines. The results indicate that the landfills were not located in suitable sites and also that there are few suitable locations to install the landfills.
Selection of landfill site is a complex process which demands many diverse criteria. The significance of the present study lies in the fact that it tends to evaluate the suitability of the existing municipal landfill sites in the west area of Mazandaran province, located in north of Iran, and the south coast of Caspian Sea. In order to carry out this evaluation, 3 guidelines are used. After reviewing all the specified criteria in each of the guidelines, the authenticity of each deposit site of the study area and the entire area also was examined; and eventually the appropriate areas were identified. As a result, 62.38 percent of the study area according to the guideline of British Columbia, 25 percent according to the Iran department of environment, and the 48.5 percent according to the management and planning organization of Iran are suitable for landfill siting.
Abstract. Open dumping is the common procedure for final disposal of MSW in Iran. Several environmental pollutions and land degradation have caused because of poor planning, insufficient financial resources, improper organizational chart for MSW management system, and the lack of rules, guidelines and regulations. In Iran standards and regulations of environmental issues are not perfectly attended, evaluation an open dumping can show existing restrictions and troubles in these areas. So recognition of the municipal solid waste landfill state is required to prevent the increase of environmental problems and decrease the negative environmental impacts. The suitability of Tonekabon existing municipal landfill site in the west area of Mazandaran province, located in north of Iran, and the south coast of the Caspian Sea is the significance of the present study as a case study of land degradation. In order to carry out this evaluation, two guidelines are used. After reviewing all the considered criteria in each of the guidelines, the authenticity of the deposit site of the study area and also the entire city was examined; and eventually the appropriate areas were identified. The conclusion of the results indicated the incoherence in appropriateness of the existing landfill site, with two mentioned methods and field work.
Not only in developing countries has remained land-filling the most customarily used method despite the increased attention to development of the Municipal Solid Waste (MSW) management. There is a worldwide need to find the right management of MSW and this research is developing an strategy for landfill sites in Iran. We first determine the characteristics of the ten landfill sites in western part of Mazandaran province, northern Iran, using seven different landfill site sitting approaches. After reviewing each waste deposit site, considering all the criteria in each one of the seven methods applied in the present study, the incoherence in suitability was apparent in first phase. The second phase was to address the locally preferred criteria for landfill site evaluation. The aims of the present research were to show the unsuitability of the current landfill sites in western part of Mazandaran province and therefore, addressing locally preferred criteria for landfill site evaluation in northern Iran, commonly referred to as the Caspian Landfill Criteria (CLC), using which the most suitable areas for landfill sites were formerly chosen. The most principal parts in the CLC model were the importance of the weights of the criteria and the preferred weights of them. This model with eighteen effective and native criteria provides the suitable evaluation technique for municipal landfill sites. The final aim of this project was to apply the obtained results to illustrate the lack of suitable regions for MSW landfill sites in studied area.
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