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:: Volume 4, Issue 2 (3-2017) ::
jehe 2017, 4(2): 174-184 Back to browse issues page
Surface Water Quality Assessment and Prioritize the Factors Pollute This Water Using Topsis Fuzzy Hierarchical Analysis
Mehdi Komasi * , Soroush Sharghi
1. Assistant Professor, Faculty of Civil Engineering, Ayatollah Boroujerdi University, Boroujerd, Iran
Abstract:   (4076 Views)

Background & Objective: Nowadays, according to growth of industry and increasing population, water resources are seriousely shortened. This lack of water resources will require special management to be considered in industry and agriculture. Among the various sources of water, surface waters are more susceptible to infection. The most important of these sources of pollution are industrial pollution, detergent, pesticides, radioactive materials, heat and salt concentration.

 Materials & methods: In this article, at first the importance of each pollutant will be evaluated base on the effects and its results and then quality evaluation of surface water will be studied. In order to assess the relative importance of these pollutants primarily using TOPSIS software, prioritize these factors as one of the hierarchical analysis and then is modeled with decision tree method using Weka software, the importance of each factor is evaluated and if it does not meet the minimal importance of the decision tree will be removed.

Results: The results obtained from the Topsis fuzzy analysis indicate that surface water and groundwater are exposed to pollution about 74% and 26% respectively among the six pollutants examined in this study. In addition, results obtaned from the hierarchical tree in software Weka has shown that the heat factor, soluble salts and industrial pollutants give impac factor or purity about 0.1338, 0.0523 and 1.2694 respectively.

Conclusion: Surface water is at greater risk of being polluted compared with groundwater. The heat factor and low concentration of dissolved salts have the low impact and industrial pollutants are considered as the most influential factors in surface water pollution.

Keywords: Surface water quality evaluation, Topsis, Weka software, Fuzzy hierarchical analysis, Water pollution
Full-Text [PDF 362 kb]   (7888 Downloads)    
Type of Study: Research | Subject: General
Received: 2017/05/30 | Accepted: 2017/05/30 | Published: 2017/05/30
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Komasi M, Sharghi S. Surface Water Quality Assessment and Prioritize the Factors Pollute This Water Using Topsis Fuzzy Hierarchical Analysis. jehe 2017; 4 (2) :174-184
URL: http://jehe.abzums.ac.ir/article-1-336-en.html

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Volume 4, Issue 2 (3-2017) Back to browse issues page
مجله مهندسی بهداشت محیط Journal of Environmental Health Enginering
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