Choosing the burring place of the waste materials is an important step in the municipal waste material management and according to the destructive effective of economic, environmental and land fields ecology, choosing the burring place had to select among a scientific procedure. The burring places had the high potential to pollute the environment and human being by Decomposition the waste materials and produce Leachate and methane and CO2 gases. The aim of this study is to determine the best place for burring and suggest a useful method in Savojbolagh waste materials management. In this study many critics such as economic, social, environmental, technical and physical were used. At first the critics and placing principles were described based on the literature. Then the considered informative layers such as topography, soil type, roads, floatability, historical places, industrial places, Residential places and the application of land were used. Considering all critics and limitations using Numeral maps and apply the GIS software 4 places were located. The assortment of located places had been done using AHP index.
Keywords: Placing, Waste, Critic, GIS, AHP
In recent years the increasing rate citizenship and consequently increasing cities population in the world and different countries led to excessive use and finally produce solid waste materials in urban regions. Disregarding to the environmental affairs in most of cities in Iran, threat the environment of burn place as a hidden enemy. Hygiene observance is the main reason for gathering and burring waste materials. A large amount of waste materials have a feature that based of it their existence in the environment threat human and creatures and led to problems in human environments. According to the problems of solid waste materials burring and hygiene bury in Tabriz County, correct placing is necessitated. In this study to choose appropriate place by considering environmental factors GIS software were used. The recant burying place had predicted for 10 years period that will be unusable soon. So the necessity of investigate is more important.
Review of Literature/Theatrical Background of the Study
Koohi (1385) investigated on the solid waste materials placing in Qarchak city. In this study appropriate places for burry solid waste materials were determined using the programming and management organization of Iran instruction, environment protection organization of Iran, environment protection organization of the United States placing critics. Finally by adoption the critics a model for Gharchakcity was established and the burring place was determined. Soomati (2007) Multi Criteria decision analyses and overlap analyses by GIS choosed a new place to bury solid waste materials. The suggested system could be updated with new information about solid waste materials placing. Different factors considered in the placing procedure include: geology, water sources, sensitive regions, wheatear and subterraneous quality and land use. The weights determined for each scale based on their relative necessity and their assortments based on the amount of effects. The results of this system usage in different places show its affect in placing procedure. In the other study, chang et al. (2008) presents a fuzzy multicriteria decision analysis alongside with a geospatial analysis for the selection of landfill sites. They employ a two-stage analysis synergistically to form a spatial decision support system (SDSS) for waste management in a fast-growing urban region, south Texas. The first-stage analysis makes use of the thematic maps in Geographical information system (GIS) in conjunction with environmental, biophysical, ecological, and socioeconomic variables leading to support the second-stage analysis using the fuzzy multicriteria decision-making (FMCDM) as a tool. Yung et al.(2008) investigated on the (i) analyze the leachate and gas emissions from landfills used for domestic waste disposal in a metropolitan area of Jiangsu province, China, investigate remotely-sensed environmental features in close proximity to landfills, and also evaluate the compliance of their location and leachate quality with the relevant national regulations. The leachates of the sampled landfills contained heavy metals (Pb, As, Cr (6+) and Hg) and organic compounds in concentrations considered harmful to human health. Measured methane concentrations on landfill surfaces were low. Spatial analysis of the location of landfills with regard to distance from major water bodies, sensible infrastructure and environmental conditions according to current national legislation resulted in the rejection of four of the five sites as inappropriate for landfills. Our results call for rigorous evaluation of the spatial location of landfills in China that must take into consideration environmental and public health criteria. Among waste management are reduce, recover and convert waste materials to the useable materials. In All steps some amount of materials remains that must be buried, so finding appropriate place is the most important step in waste material management (Sener et al. 2006). This issue ever was the problem for human. Choose inappropriate burring place cause water, soil and climate contamination (Environmental Protection Organization, 1380). Many critics and indexes had been suggested to find appropriate place for burring that each of them proposed limitations and specific conditions. In the other words each one of critics had been constructed based on the scientific Background, So that led to placing studies find Interdisciplinary and multidimensional identity (Shamsaiifard, 1382).The main aim of placing is to find the most appropriate place that has lower adverse effects on the environment and natural resources, in terms of economic with least-cost and best specification from engineering vision (ghazban, 1385). So, data processing and evaluation had to be done compared to limitations, regulations and factors (daneshvar et al. 2003).