模糊评价在罗河镇饮用水水质评价中的应用研究

运用模糊综合评价法对庐江县罗河镇饮用水水源地水质进行了综合评价.根据罗河镇饮用水水源水的特点,选取了罗河镇的3处自来水水厂以及对照组的2处自来水水厂水源水水样水质进行检测,确定了8个指标作为评价因子,建立评价矩阵,计算出影响因子的权重,最后评价出水质级别.同时对模糊综合评价法与内梅罗指数法进行了对比.结果发现,模糊综合评价法评价结果为罗河镇3处自来水厂水源水水质级别分别为Ⅰ、Ⅱ、Ⅲ类水,对照组均为Ⅰ类水;内梅罗指数评价法评价结果五处水厂水源地水质均为Ⅰ级.其中模糊评价法引用了权重值,对各污染因子的影响程度进行了细化分析计算,因此模糊评价法更适用于水质评价.

APPLICATION OF FUZZY EVALUATION TO QUALITY ASSESSMENT OF DRINKING WATER IN LUOHE TOWN

Through fuzzy comprehensive evaluation method, the quality of drinking water sources in Luohe town of Lujiang Coun-ty is comprehensively evaluated. According to the characteristics of drinking water sources in Luohe town, this paper selectsthe three waterworks in Luohe town and the compared groups of two source water samples to test their water quality. It identi-fies 8 indexes as the evaluation factors, establishs the evaluation matrix, calculates the weight of thefactors, and finally assessesthe evaluation of water quality. At the same time, this paper respectively uses the fuzzy comprehensive evaluation method andthe Nemerow index method for comparison. The results show that fuzzy comprehensive evaluation method has been applied tofind that the source water quality levels of three waterworks in Luohe town are respectively identified as Rank I, Rank II, RankIII water while the compared groups are all identified as Rank I water. The results of Nemerow index evaluation method are thatthe water quality of five waterworks are all identified as Rank I water. The fuzzy comprehensive evaluation method applies theweight value of different pollution factors, and makes a detailed analysis and calculation on the influenced degrees of pollutionfactors. Therefore the fuzzy comprehensive evaluation method is more suitable for water quality assessment.