模糊综合评价法在石佛寺水库水质评价中的应用

Application of fuzzy comprehensive evaluation in water quality assessment of Shifosi Reservoir

模糊综合评价法能准确地定量分析水质一类的模糊问题,本文选取高锰酸盐指数、COD、BOD_5、氨氮、总磷和总氮作为水质评价因子,应用模糊综合评价法对石佛寺水库2015年枯、丰水期入库、库中、出库监测断面进行水质现状评价。评价结果显示,枯、丰水期三库区均属于V类水,水质较差。该方法评价结果与综合质量法评价结果基本一致,且评价结果准确可信,具有重要的实践意义。

Water quality assessment methods are numerous,and meanwhile fuzzy comprehensive evaluation can accurately and quantitatively analyze the fuzzy issues of water quality. The factors of water quality evaluation,such as permanganate index,COD,BOD_5,ammonia nitrogen,total phosphorus and total nitrogen were selected. The water quality was evaluated and the assessment process was introduced by the method for the entrance,middle and exit of the reservoir during dry and wet seasons in 2015. The evaluation results showed that the water quality of the three areas of reservoir in dry and wet seasons was poor of V class. The evaluation results were basically consistent with the comprehensive quality method.Therefore,the results were accurate and credible and had an important practical significance.