Application of Modified Fuzzy Comprehensive Evaluation Method in the Evaluation of Groundwater Quality
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Abstract:
The fuzzy comprehensive evaluation method is widely used in the evaluation of water quality by the environmental hydrogeologists. However, the application of fuzzy comprehensive evaluation method in water quality assessment started relatively late and the research is not very thorough, therefore some problems exist in the evaluation of groundwater quality using the fuzzy comprehensive evaluation method. In this paper, the membership function and complex computing problems in the fuzzy mathematical evaluation method are introduced, the simple processing is conducted for the existing problems, and the evaluation method is modified. At the same time, the modified method and original method are applied to the same case. The groundwater water quality in this case study area is relative poor, which leads to that the evaluation results are similar with those original operators such as "multiplication take big" and "small and big" . Moreover, the evaluation results shows that the modified method reflects the real conditions of groundwater water, which suggest that the method and evaluation results are reliable and can provide reference significance for future groundwater quality assessment projects..
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