【摘 要】
：
With the exploitation of uranium resources,uranium mining process inevitably caused radioactive environment pollution.In this paper,the situation and reason
【机 构】
：
Nuclear and Radiation Safety Centre,MEP,Beijing 100082,China
论文部分内容阅读
With the exploitation of uranium resources,uranium mining process inevitably caused radioactive environment pollution.In this paper,the situation and reason of groundwater pollution caused by uranium mining were briefly described.For the heap leaching,uranium tailing impoundment leaked because of unreasonable design or too long use,then radionuclides and heavy metals in uranium tailing impoundment would seep to aquifer and contaminated the groundwater.For the in-situ leaching,due to the injection of the leaching agent,the geochemical environment of the aquifer changed and the ground water was polluted.Then,the migration of contaminants in groundwater was analyzed.The migration of radionuclides in groundwater and the pollution of groundwater were affected by many factors,such as the velocity of groundwater flow,soil media and so on.Finally,the treatment technologies and protection measures were proposed.
其他文献
冬暖式大棚冬瓜栽培山东省寿光市农业局王新文为增加冬春蔬菜的花色品种，调节市场供应，我们于１９９３年试验成功了冬暖式大棚冬瓜栽培，亩产量在５０００公斤以上，纯收入２万元以上。主要栽培技术如
目的:探讨分析在高血压合并糖尿病患者心律失常治疗中应用卡维地洛治疗的效果和安全性.方法:2019年1月-2020年7月,共选取42例高血压合并糖尿病心律失常患者,编号抽取分组,对
Chaos synchronization has been applied in secure communication, chemical reaction, biological systems, and information processing. A new theorem to synchroniza
目的:探究对原发性高血压患者采用心理干预后对降压药剂量的影响.方法:研究开始于2018年5月,结束于2018年12月,选择原发性高血压患者50例,分为参照组(n=25)与研究组(n=25).所
目的:通过不同手术方式治疗老年性下睑内翻倒睫的疗效对比.方法:样本来源:2018年4月～2020年4月在我院接受下睑内翻倒睫治疗的80例老年患者,按照抽签法均分样本为缩短术组和切
目的:比较开放式和封闭式管理对精神病房患者焦虑和抑郁的影响.方法:该研究包括2019年4月至2020年4月之间收治的76名精神病患者.其中,对照组中有35人采用封闭式护理,研究组中
目的:探讨血液检验鉴别诊断贫血的效果.方法:挑选2018年10月-2019年10月我院收治的40例贫血患者参与研究,将18例地中海贫血患者列为慢性病贫血组,将22例缺铁性贫血患者列为缺
Alpha-and beta-activities per unit volume of air due to radon (222Rn),thoron (220Rn) and their decay products were measured in the air of various health cen
目的:分析和探究鉴别诊断心房颤动伴宽QRS波群心动过速中采用aVR导联法所发挥的重要作用和应用的价值.方法:采取随机抽选的方法,将2018年11月-2019年11月就诊的200例心房颤动