济河对谢桥煤矿采煤沉陷水域的影响研究  

Study on the influence of Jihe River on mining subsidencewaters in Xieqiao Coal Mine

作　　者：王锦 谢毫 范佳民 WANG Jin;XIE Hao;FAN Jiamin(Safetyand Environmental Protection Department,Huaihe Energy Group,Huainan 232001,China;National Engineering Laboratory of Coal Mine Ecological Environment Protection,Huainan 232001,China;School of Resources and Environmental Engineering,Anhui University,Hefei 230601,China)

机构地区：[1]淮河能源集团安环部,安徽淮南232001 [2]煤矿生态环境保护国家工程实验室,安徽淮南232001 [3]安徽大学资源与环境工程学院,安徽合肥230601

出　　处：《能源环境保护》2021年第3期89-98,共10页Energy Environmental Protection

摘　　要：选取氮、磷、铅、铬、铜为分析指标,采用综合水质标识指数评价模型评价了济河与沉陷水域水质。结果表明:济河和沉陷水域的氮磷主要受周边的面源影响;在2019年10月~2020年6月期间,TN和NH 3-N含量随时间均呈现上升趋势;雨季时,沉陷区和济河的TN最大值分别为5.55 mg/L和6.33 mg/L,NH 3-N最大值分别为1.27 mg/L和1.42 mg/L;沉陷水域中Cu、Zn、Pb含量均高于济河,济河水的流动对沉陷区水质改善起到正向促进作用;受济河水体交换及降水的影响,沉陷水域水质在雨季的波动较大;济河和沉陷区水体水质满足《地表水环境质量标准》(GB 3838—2002)Ⅳ类要求。Taking nitrogen,phosphorus,lead,chromium and copper as analysis indexes,the water quality of Jihe River and subsidence water was evaluated with the comprehensive water quality identification index evaluation model.The results showed that nitrogen and phosphorus in Jihe River and subsidence waters were mainly affected by the surrounding non-point source.From October 2019 to June 2020,the contents of TN and NH 3-N increased with time.In the rainy season,the maximum values of TN in subsidence waters and Jihe River were 5.55 mg/L and 6.33 mg/L,respectively,and the maximum values of NH 3-N were 1.27 mg/L and 1.42 mg/L,respectively.The contents of Cu,Zn and Pb in the subsidence waters were higher than those in Jihe River.The flow of Jihe River improved the water quality of the subsidence waters.Affected by precipitation and the water exchange with Jihe river,the water quality of the subsidence waters fluctuated greatly in rainy season.The water quality of Jihe River and subsidence waters meets the requirements of class IV in environmental quality standards for surface water(GB 3838-2002).

关 键 词：济河 沉陷水域 营养盐 重金属 综合水质评价 

分 类 号：X522[环境科学与工程—环境工程]