Abstract
Landfilling with simplicity and economic advantages is the most common element for waste management in both developed and developing countries. Landfill site selection in a proper way is an important municipal planning process which prevent environmental issues including water pollution imposed for insanitary landfills. The present research was developed to exhibit a simplified method of multi criteria decision making (MCDM) and Fuzzy memberships in GIS environment to ascertain best landfill sites for Shiraz county, located south of Iran. 15 most common sub-criteria, documented in literature and implicated by Iranian environmental protection organization (IEPO) including surface water, ground water, land use, distance to well, soil type, slope, protected area, fault in environmental group, residential area, road, airport, village, infrastructure, historical area, wind direction in socio-economical group were selected and the weight of each criterion was determined based on expert’s knowledge with use of analytical hierarchy process (AHP). The results of the present research are as follows:•Distance to residential area and groundwaters with weight of 0.36 and 0.28 were recognized as the most important criteria for landfill site selection.•The six suitable areas for landfill in Shiraz county is 1.003% of total area equal to 8710 ha.•AHP and Fuzzy memberships has a great potential and ability for landfill site selection.
Highlights
Iran has a lot of land which can be applied for waste disposal, the population is growing and the cities are increasingly growing as well [5]; for this reason, a method by which the experts can find the best suitable place for landfill is of great importance in waste management system [6,7]
A variety of environmental and socio- economical criteria were used for the landfill site selection, addressed in the Table 1
The weights of criteria and sub-criteria in both environmental and socio-economical are based on weight obtained from the analytical hierarchy process (AHP) method
Summary
Shiraz county is located on center of Fars province, Iran in geographical coordinates, 51. The waste produced daily in Shiraz, as sixth most populous city of Iran, with current population is over 954 tons. (SW) winds are the most common wind directions in Shiraz city. In terms of cultural and tourism perspective, Shiraz area is known as a city with some cultural heritages of global importance such as Takht-jamshid, Perspolis complex palaces which attract over a million tourists all over the world throughout a year. A recent solid waste qualitative analysis in Shiraz indicated that of 954 tons waste generated daily, a highly percentage equal to 70.63% (by dry-weight) was organic matters
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