选煤厂事故池中污染物在地下水中的迁移规律研究  

Study of the pattern of migration of pollutants in coal preparation plant's emergentcy pond in underground water

作　　者：冯运鱼 孙晓栋 吴佳美 FENG Yunyu;SUN Xiaodong;WU Jiamei(Bijie Coal Mine Survey and Design Institute,Bijie 551700,China;Guizhou University of Engineering Science,Bijie 551700,China)

机构地区：[1]毕节市煤矿勘测设计院,贵州毕节551700 [2]贵州工程应用技术学院,贵州毕节551700

出　　处：《选煤技术》2023年第2期37-41,共5页Coal Preparation Technology

摘　　要：为了指导选煤厂事故池选址,避免其渗漏污染溪沟水体,采用GMS软件中的MODFLOW和MT3D模块,通过建立可视化的三维地下水渗流模型和污染物迁移模型,对污染物在地下水中的迁移规律进行了模拟研究。研究结果表明:当选址1时,污水暂存30 d也不会对溪沟造成直接的污染;在选址2时,污染物会对下游溪沟造成直接污染;在选址1处建立事故池,污染物暂存的天数不能超过30 d,否则会对溪沟造成直接污染危险。运用GMS软件建立可视化的三维地下水渗流模型和污染物迁移模型,能为工程建设与设计提供可靠直观的依据。In order to provide a guidance for a coal preparation plant to make rational site selection of its emergency pond for guarding against pollution of surface water bodies by seepage of pollutants from the pond,a visualized three-dimensional groundwater seepage model and a pollutant migration model are developed using the MODFLOW and MT3D modules of GMS software to simulate the patter of migration of pollutants in groundwater.As revealed by study results,when the pond is set at the site I,the river and streams cannot be directly contaminated by pollutants even the efluents in the pond is temporarily kept in the pond for 30 days;in the case that the pond is set at site II,the downstream rivers and ditches can get directly polluted;and the the site I,the effluents should not be kept in the pond for over 30 days for avoiding direct contamination of surface water bodies.It is demonstrated that with the use of the above mentioned two models established with the GMS software,a reliable intuitive basis can be provided for engineering construction and design.

关 键 词：选煤厂建设 事故池选址 GMS软件 渗流模型 污染物迁移规律 

分 类 号：TD946.2[矿业工程—选矿]