河池市罗城县地下水环境质量评价及分析

Analysis and Groundwater Environmental Quality Evaluation in Luocheng County of Hechi

为查清罗城县地下水情况,根据罗城县地下水监测数据和水质特点,选取高锰酸盐指数、硝酸盐氮、总硬度、氨氮、铁和锰作为评价因子,以GB/T14848-93《地下水质量标准》为评价标准,同时运用内梅罗指数法和模糊综合评价法对罗城县9个地下水监测点位(饮用水水源保护区、工业园区和矿山开采区)进行地下水环境质量评价。以模糊综合评价结果进行分析,饮用水水源保护区内地下水质良好,均达到Ⅱ类水质标准;工业园区有1个点位地下水水质超标,超标因子为总硬度;矿山开采区地下水质情况较差,有2个点位监测因子铁、锰超标,为Ⅴ类水。最后,针对罗城县地下水现状及存在的问题,提出合理的对策建议。

To investigated Luocheng County groundwater conditions,,the water quality of nine groundwater samples in Luocheng County was evaluated using the Nemero comprehensive index method and fuzzy mathematical method. The permanganate index,nitrate nitrogen,total hardness,ammonia,iron and manganese were selected as the evaluation factors,and the Quality Standard for Ground Water（ GB / T14848- 93） as the evaluation criteria,according to monitoring data and the characteristics of the water quality of the County. Fuzzy mathematical method results were analyzed that groundwater quality of source water protection areas is good,have reached Ⅱ water quality standard; a point of industrial park of groundwater has excessive quality,exceeding the total hardness factor; poor mining underground water quality,there are two points to monitor factors of iron,manganese exceeded,as ⅴ water. Finally,aimed at the status and existing problems of groundwater Luocheng County,puts forward the reasonable countermeasures and Suggestions.