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- Title
模糊区间型综合决策方法在水质评价中的应用.
- Authors
黄 瑞; 韩龙喜; 张防修; 彭 辉
- Abstract
Pollution accidents pose a serious threat to the safety of water quality Water quality assessment of pollution accidents can accurately determine the impact of accidents on water quality. The traditinal water quality evaluation model can not reflect the dynamic change characteristics of water quality monitoring values and it has the problem of overcompensation between good and had indexes in the process of evaluation. Moreover, it cannot distinguish the quality of the same grade of water quality, so a fuzzy interval multi-attribute comprehensive water quality evaluation model has been built to improve the effect of existing water quality assessment methods. In this model, the information set of water quality monitoring was aggregated into interval numbers according to certain rules and the similarity between the water quality monitoring measurement interval and various water quality standard intervals was determined. Based on the optimization subjective and objective comprehensive weighting method, the water quality index was weighted and the fuzzy comprehensive evaluation method was used to calculate the fuzzy comprehensive evaluation index of the water to be evaluated, so as to determine the water quality. The application of the fuzzy interval multi-attribute comprehensive water quality evaluation model to the analysis of water quality changes before and after the rainstorm in Dahuofang Reservoir shows that the fuzzy comprehensive evaluation index generated by the evaluation model can distinguish the advantages and disadvantages of the same water quality and the improved model is suitable for the study of water quality evaluation of sudden pollution accidents such as heavy rainstorm.
- Publication
Yellow River, 2021, Vol 43, Issue 5, p104
- ISSN
1000-1379
- Publication type
Article
- DOI
10.3969/j.issn.1000-1379.2021.05.020