List of Articles Fuzzy Delphi Analytic Hierarch

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  1 - Risk Assessment and Ranking of Heavy Metals in the Sediments of Sarcheshmeh Copper Mine Using FDAHP and ELECTRE Methods
  Mohammad Reza Tavakoli Mohammadi Ali Rezaei Mohammad Hayaty Hossein Hasani
  Background and Objective: Heavy metals are considered the serious pollution source for the environment because of their stability, atomic and biological accessibility problems. The sediments of Sarcheshmeh copper mine in Iran contain high concentrations of these polluta More

  Background and Objective: Heavy metals are considered the serious pollution source for the environment because of their stability, atomic and biological accessibility problems. The sediments of Sarcheshmeh copper mine in Iran contain high concentrations of these pollutants. Thus, environmental evaluation and ranking them based on emission levels are important for timely environmental measures with the lowest operating costs. The first aim of this study is to evaluate the environmental risk of these sediments by determining the contamination factor, pollution load index, enrichment factor and Geoaccumulation index. The second aim is ranking these metals based on the level of risk critical using the Multi-Attribute Decision Making (MADM) method. Method: In this study, first, by determining risk evaluation indices, heavy metals contamination (Co , Cu , Mo , Zn , Cr , Mn , Ni , Pb , Ti and Fe ) in the sediments of Sarcheshmeh copper mine which conduce to the tailings dam was assessed. Then, by collecting expert opinions on the relative importance of each indicator mentioned in the environmental contamination risk of heavy metals, through final weighting of the indices using Fuzzy Delphi Analytic Hierarchy Process (FDAHP), ranking and clustering of heavy metals in the sediments of the study area were performed using ELECTR method. Results: Based on the results measuring the risk evalution indices, the intensity of contamination related to these metals was in order of Zn> Cu> Fe> Mo> Pb > Mn > Cr, and all the metals except for copper, zinc and iron were almost cited to be in the unpollutant limit. Also based on ranking results, the ten risks were clustered in seven categories with copper, iron and zinc having the highest pollution and critical risk amongst the heavy metals in the studied sediments, respectively. Conclusion: Considering the boilers with high energy consumption and low efficiency in this factory, the replacement of old boiler with the new one through CDM project is cost effective. Manuscript profile
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  2 - Optimal site selection of educational space in urban areas using FDAHP and Cut Fill function A Case study: Schools of district 6th in Ahvaz city
  Ali Shojaian Hadi Alizadeh Seyedeh Narges Naghibi Rokni
         Today, the finding organizations and the optimal organization of space in cities is a major aim in order to create sustainable development for cities. In the meantime, location and optimal establishment activities as well as the prop More

         Today, the finding organizations and the optimal organization of space in cities is a major aim in order to create sustainable development for cities. In the meantime, location and optimal establishment activities as well as the proportional distribution in cities and towns are highly effective in achieving optimal physical arrangement. The research method deployed is a descriptive - analytic one that has been carried out in order to perform optimal site selection of educational space in urban areas, with emphasis on locating schools in 6th area of Ahvaz. To achieve the above objective and analysis of information obtained, Fuzzy Delphi AHP (FDAHP) and Cut Fill functions are used. To locate the optimal place Arc GIS software is used for prioritization of urban land uses in proximity to schools. In this research the feedback information (Comments) of 15 experts have been obtained and analyzed. The results show that, according to weights obtained from Fuzzy Delphi Analytic Hierarchy Process (FDAPH), residential land use is a top priority for the schools neighborhood. Manuscript profile