粉煤灰井下填充时PAHs对地下水环境的影响  

Impact of PAHs on ground water during mine-filling with fly ash

作　　者：邓寅生[1] 何莎莎[1] 韩哲楠[2] 

机构地区：[1]河南理工大学资源环境学院,焦作454003 [2]南开大学环境科学与工程学院,天津300071

出　　处：《环境工程学报》2007年第6期109-113,共5页Chinese Journal of Environmental Engineering

基　　金：河南省重点科技攻关项目(0423032900)

摘　　要：模拟平煤集团矸石电厂以及焦煤集团演马电厂粉煤灰井下填充过程,设计了静态浸泡和动态淋溶实验,并以固相萃取-气相色谱/质谱联用方法,测定了溶出液中的16种多环芳烃含量。实验结果表明:溶出液中主要的PAHs物质是萘、苊、芴、菲、蒽,均为4环以下的多环芳烃类物质,其含量较低,其中菲和蒽的总含量较高,说明在粉煤灰井下填充过程中,多环芳烃类污染物能够从粉煤灰中迁移至水体,并对地下水环境造成一定的影响。This paper focuses on the simulation of mine-filling with fly ash in the power station of the 12th mine of the Pingdingshan Coal Group and Yanma, Jiaozuo, through both the immersion and leaching experiments. Using SPE-GC/MS to determine the concentrations of 16 PAHs that are the priorities of control pollutants by US EPA. The results indicate that the main pollutants are naphthalene, acenaphthylene, fluorene, phenanthrene and anthracene, all of which are with a low concentration. And the content of phenanthrene and anthracene are relatively high. This appears that PAHs can transfer into water from fly ash and affect the ground water system during the mine-filling process.

关 键 词：粉煤灰 矿井填充 多环芳烃 固相萃取 气相色谱/质谱法 

分 类 号：X502[环境科学与工程—环境工程] TD823.7[矿业工程—煤矿开采]