【作者】 杨森； 王永利；

【Author】 YANG Sen;WANG Yongli;Chengdu University of Technology;

【机构】 成都理工大学；

【摘要】 放射性核素Sr是一种典型的亲骨性元素,对人体的危害极大。国内、外的学者对核素Sr进行了各种实验研究和模拟研究。但目前极少有人利用热力学的方法计算Sr在水中的形态分布。利用日本原子力学研究所于2010年9月提供的热力学数据库和法国国家热力学实验室的研究成果,运用水文地球化学软件PHREEQC,模拟了甘肃北山五一监测井地下水中Sr的形态分布。结果表明,地下水中主要以Sr（C₂H₄NO₂）₂和Sr²⁺的形态为主,SrSO₄占少量。pH对Sr形态分布影响并不大,pE对Sr的形态分布没有任何影响。氨氮浓度对Sr形态分布的影响极大,在废物的包装材料以及地球化学工程屏障设计中应尽量避免使用氨氮。更多还原

【Abstract】 Radionuclide strontium is a typical pro-osseous element and is harmful to the human body.Domestic and foreign scholars conducted various experimental research and simulation studies on radionuclide strontium.However,very few people use the method of thermodynamic to calculate the distribution pattern of strontium in the water.In this paper,the author uses thermodynamic databases provided by Japan Atomic Mechanics Research Institute in September 2010 and the research findings provided by the French National Research Thermodynamics Laboratory,and applies the geochemical software PHREEQC to simulate existing forms of Sr in Gansu Beishan 51 Underground Water Monitoring Wells.The research results show that Sr（C₂H₄NO₂）₂ and Sr⁺² are main forms in the underground water,but SrSO₄ is less.In fact,PH has less effect on species distribution of Sr and PE has no effect on the existing form and distribution of Sr.However,ammonia concentration has a great influence on the distribution of Sr.Thus,people should avoid introducing the ammonia in waste packaging materials and geochemical engineering barrier design.更多还原