高放废物处置库雅满苏和天湖地段地下水化学特征  

Groundwater Chemical Characteristics in Yamansu and Tianhu Section for High Level Radioactive Waste Disposal Repository

作　　者：郭永海[1] 李娜娜[1] 周志超[1] 董建楠[1] 季瑞利[1] 刘淑芬[1] 

机构地区：[1]核工业北京地质研究院,北京100029

出　　处：《核化学与放射化学》2014年第B12期78-84,共7页Journal of Nuclear and Radiochemistry

基　　金：核设施退役及放射性废物治理专项资助项目（科工二司[2011]835号）

摘　　要：新疆雅满苏和天湖地区是我国高放废物处置库场址的主要预选地段之一。在高放废物处置库选址和评价中，水文地球化学特征是最重要的评价因素之一。在2009--2013年间，开展了雅满苏和天湖地段区域水文地球化学调查，采集地下水样品30余组，根据样品测试结果。讨论了该地区水文地球化学特征，其主要结论是：研究区地下水主要为高矿化的咸水。地下水的pH=7．69～9．64；水温11．8～24．0℃；地下水矿化度（TDS）在542．7～413375．5mg／L之间变化，地下水的主要化学类型为Cl·SO4-Na、SO4·Cl-Na和Cl-Na型。控制地下水化学形成的主要作用是溶滤作用和蒸发浓缩作用。Yamansu and Tianhu area in Xinjiang is the main preselected section of disposal repository for high level radioactive waste（HLW） in our country. In the siting and site cha acterization study for high level radioactive waste repository, the groundwater chemical characteristics are the one of the most important evaluation factors. From 2009 to 2013, the field hydrogeochemical investigation was carried out and more than 30 groundwater samples were collected. According to the measurement data, the paper discussed the groundwater chemical features in Yamansu and Tianhu preselected section for China＇s high level radioactive waste repository. The main conclusion is that： the groundwater in the study area is mainly saline water with high dissolved solids, 7.69-9.64 pH value, 11.8-24.0℃, 542.7-413 375.5 mg/L total dissolved solids and Cl· SO4-Na, SO4· Cl-Na and Cl- Na chemical types. The hydrogeochemical features show that lixiviation and evaporation are the basic pattern forming the groundwater chemistry in the section.

关 键 词：地下水 化学特征 咸水 雅满苏-天湖地段 

分 类 号：TL942.1[核科学技术—辐射防护及环境保护]