甘肃省苏干湖盆地地下水质量评价  

The evaluation of groundwater quality of Sugan lake basin in Gansu Province

作　　者：刘明霞 吕红艳 刘凯欢 陈海龙 候燕军 LIU Ming - xia LV Hong -yan LIU Kai - huan CHEN Hai - long HOU Yan - jun(Gansu geological environment monitoring institute / Key laboratory of groundwater engineering and geothermal resources in gansu province, Lanzhou, Gansu 730050, Chin)

机构地区：[1]甘肃省地质环境监测院/甘肃省地下水工程及地热资源重点实验室,甘肃兰州730050

出　　处：《地下水》2017年第5期31-33,共3页Ground water

基　　金：地质调查项目:"主要平原(盆地)地下水砷氟等评价与安全供水区划"(12120113103700)资助

摘　　要：通过调查苏干湖盆地地下水中的铁、锰、碘、氟、pH、硝酸盐、亚硝酸盐、氨氮、溶解性总固体和总硬度等离子含量,分析了地下水中铁、锰等含量的空间分布,并对地下水质量进行评价。结果表明:苏干湖盆地地下水中铁、锰、碘等均无超标;氟、pH仅有一个点位于较适宜区;"三氮"(NO_3-、NO_2-、NH+4)分布图相似,且呈点污染特征;自东向西,溶解性总固体和总硬度有增大趋势;可以直接饮用(Ⅰ—Ⅲ类水)的地下水资源占71.4%、经处理可饮用(Ⅳ类水)地下水资源占24.4%、不能直接饮用地下水资源(Ⅴ类水)占3.3%。Suganhu basin is located in the territory of Gansu province Aksay County, through the investigation of groundw- ater in suganhu basin of iron, manganese, iodine, fluorine, PH, nitrate, nitrite, ammonia nitrogen, total dissolved solids and total hardness of plasma content, analysis of the distribution of iron and manganese in groundwater in space, and to evaluate the groundwater quality. The results showed that the underground water in the basin was not exceeding the limit of iron, man- ganese and iodine; Fluorine and pH have only one point in the more suitable area; the distribution of ＂ three nitrogen＂ （ NO3 - ,NO2 - ,NH4＋ ） is similar, with a point of pollution; from east to west, the solubility of total solid and total hardness increases; Can be directly drinking （ Ⅰ - Ⅲ water） accounted for 71.4% of groundwater resources, the treatment can be drinking water （ Ⅳclass） accounted for 24.4% of groundwater resources, can not directly drinkable groundwater resources （ Ⅴ water） accounted for 3.3%. The results provide a scientific basis for the rational exploitation of groundwater in this area.

关 键 词：苏干湖盆地 地下水 水化学特征 地下水质量区划 

分 类 号：X824[环境科学与工程—环境工程]