1.North China Institute of Science and Technology，Sanhe China;2.China Institute of Geo-Environment Monitoring,Beijing ,China

为查明废弃煤矿矿井水中高含量多环芳烃菲的来源,基于对峰峰矿区16件不同类型的水样品的采集与处理,对废弃煤矿矿井水中多环芳烃菲的分布特征进行了分析,并运用环境同位素和水化学成分与多环芳烃菲含量的相互关系分析了其污染来源。结果表明:废弃煤矿矿井水中多环芳烃菲质量浓度为0.10~0.30 ng/L,平均值为0.21 ng/L。在不同水体中多环芳烃菲含量表现为地表水>废弃煤矿矿井水>太灰水≥潜水≥奥灰水。废弃矿井水的充水水源为奥灰水,奥灰水在回升过程中与残留煤发生了水-岩作用,溶解了更多的硅酸盐和低34S硫化矿物,导致多环芳烃菲含量偏高于其他水体。

In order to identify the source of high levels of polycyclic aromatic hydrocarbons phenanthrene in abandoned mine water,the distribution characteristics of phenanthrene in abandoned coal mine water were statistically analyzed based on 16 different types of water samples collected and analyzed in the Fengfeng Mining Area.Furtherly,environmental isotope and chemical composition correlation with containing PAHs phenanthrene value was applied to analyze the source of pollution.The results showed that the phenantrene concentration in abandoned mine water was ranged from 0.10 to 0.30 ng/L with an average of 0.21 ng/L.The concentration of phenanthrene in different water was expressed as surface water > abandoned mine water>coal bedrock water≥shallow groundwater≥karst groundwater.The source of abandoned mine water was karst groundwater,and intense water-rock interaction happened with the groundwater level rise.The consequence was abandoned mine water dissolved more silicate minerals and sulfide minerals with lower 34S,and then the phenanthrene content of PAHs is higher than that of other water bodies.

国家自然科学基金资助项目(41572344)；河北省矿井灾害防治重点实验室开放课题资助项目(KF2017-13)；矿山地质灾害成灾机理与防控重点实验室开放课题资助项目(KF2017-13)；