某金矿尾矿库及库区地下水氰化物污染特征与评价  

Characteristics of cyanide pollution of a gold mine tailing pond and its underground water

作　　者：石磊 申中华 王立艳 张世杰 赵龙 郭腾达[1,2] SHI Lei;SHEN Zhonghua;WANG Liyan;ZHANG Shijie;ZHAO Long;GUO Tengda(Shandong Zhengyuan Geological Resources Exploration Co.,Ltd.,JiNan 250101,China;Testing Center of Shandong Bureau of China Metallurgical Geology administration,JiNan 250014,China)

机构地区：[1]山东正元地质资源勘查有限责任公司,山东济南250101 [2]中国冶金地质总局山东局测试中心,山东济南250014

出　　处：《环境保护科学》2021年第5期82-88,共7页Environmental Protection Science

基　　金：水土污染修复治理成套技术应用研究(SDYJ-KY202009);寿光滨海地下水漏斗区海咸水入侵机理研究(SDYJ-02.11.202001)。

摘　　要：以某金矿尾矿库为例,通过地球物理勘测、水文地质钻探、抽水试验、连通试验、淋滤试验、土壤及地下水样品分析测试等综合技术手段,查明尾矿库及库区地下水氰化物污染迁移特征,为类似工程设计、地下水预防与防治提供科学依据。结果表明:库区纵向中风化凝灰岩上部含水层,为主要的氰化物运移通道;横向中游库区内,地下水氰化物含量普遍偏高,向东西两侧逐渐减弱,以东西两侧自然山脊为超标界线。在此基础上,提出采取污染源控制控制和污染羽控制相结合的防控措施,防止受污染的地下水向下游运移,保证下游村庄居民的饮用水安全。Taking a gold mine tailing pond as an example,through comprehensive technical means such as geophysical survey,hydrogeological drilling,pumping test,connectivity test,leaching test,soil and groundwater sample analysis and test,the migration characteristics of cyanide pollution in the tailing pond and its groundwater were clarified to provide a scientific basis for the similar engineering design,groundwater prevention and control.The results showed that the upper aquifer of vertically moderately weathered tuff was the main cyanide transport channel.In the middle reaches of the reservoir area,the cyanide content in groundwater was generally high,and gradually decreased to the east and west sides,with the natural ridges on the east and west sides as the boundary.In addition,the prevention and control measures of combining pollution source control with pollution plume control were proposed to prevent the polluted groundwater from migrating downstream and ensure the drinking water safety for downstream village residents.

关 键 词：尾矿库 氰化物污染 防渗 帷幕堵截 饮用水安全 

分 类 号：X523[环境科学与工程—环境工程]