某发电厂灰场地下水监测井建设及其地下水影响评价  

Groundwater monitoring well construction and groundwater impact assessment in the ash yard of a power plant

作　　者：宋晨 罗维 曾国龙 骆振华 SONG Chen;LUO Wei;ZENG Guolong;LUO Zhenhua(Geological Team,Bureau of Geology and Mineral Exploration and Development of Guizhou Province,Liupanshui 553000,Guizhou,China)

机构地区：[1]贵州省地质矿产勘查开发局113地质大队,贵州六盘水553000

出　　处：《城市地质》2024年第4期483-489,共7页Urban Geology

摘　　要：为摸清某发电厂灰场周边地下水环境质量底数,保障电厂绿色可持续运行。通过野外地质环境调查、地质钻探施工、抽水试验、地下水污染指数评价等技术手段,在灰场建设了9口地下水监测井,并进行了样品采集、测试及分析。结果表明:灰场位于杨梅树复式盆形向斜的南东翼,分布地层主要为二叠系上统龙潭组砂岩、泥岩夹煤系地层;涌水量与水位降深呈线性关系,单位涌水量不变,地下水为承压水;灰厂地下水水质级别为Ⅰ类-Ⅵ类,污染等级为变化较大;污染组分主要是钠、硫酸盐、溶解总固体、氨氮、砷、锰、pH,污染来源主要与地质背景及企业生产活动有关。In order to find out the environmental quality of groundwater around the ash yard of a power plant and ensure its green and sustainable operation,9 groundwater monitoring wells were built in the ash yard,and samples were collected,tested and analyzed through field geological environment survey,geological drilling construction,pumping test,groundwater pollution index evaluation and other technical means.The results show that the ash yard is located in the southeast wing of Yangmeishu complex basin syncline,and its distribution strata are mainly sandstone,mudstone and coal measures in the Upper Permian Longtan Formation.There is a linear relationship between the water inflow and the drawdown of the water level,and the unit water inflow is unchanged.The groundwater quality level of the ash yard is Class Ⅰ to Class Ⅵ,and the pollution level changes greatly.The main pollutants are mainly sodium,sulfate,dissolved total solids,ammonia nitrogen,arsenic,manganese and pH,and the pollution sources are mainly related to the geological background and production activities of enterprises.

关 键 词：电厂灰场 地下水监测井 水质级别 污染来源 

分 类 号：TM621[电气工程—电力系统及自动化] P641.7[天文地球—地质矿产勘探] X523[天文地球—地质学]