河南省某垃圾填埋场地下水中邻苯二甲酸酯分布特征与成因

某垃圾填埋场地下水和地表水的分析测试结果表明:16个样品中,14种PAES的检测率为100%,其中DEHP的浓度最高,变化也较大,DOP的浓度较高,但是变化不明显,DEP的含量不高,浓度的变化几乎为常数。由于受水文地质条件和人工开采的影响,垃圾填埋场北侧ZK北孔的PAES的总浓度高于垃圾填埋场周围地下水和地表水中PAES的总浓度;PAEs含量和TSS、TDS、EC、pH以及芴、菲、蒽、荧蒽、芘之间没有线性关系,表明它们来源和迁移转化机理是不同的。目前垃圾场周围地下水和地表水中的PAES都没有超过国家饮用水质量标准,然而,为了防止进一步污染,必须对PAES的污染问题给予极大的关注。

Distribution characteristics and origin of phthalate esters in the groundwater of certain landfill in Henan Province

The analysis results of the groundwater and surface water in the landfill and the around area show that among the 16 samples the test rate of the 14 PAEs is 100%.The DEHP concentration is the highest with a large fluctuation,DOP is higher with a little fluctuation,while DEP not high with little fluctuation.Due to the hydrogeological conditions and mining activities,the total PAEs concentration in ZK hole in the north to the landfill is higher than that of the groundwater and the surface water around it.The PAEs concentrations aren’t linearly related with the TSS,TDS,EC,pH as well as the concentrations of fluorenyl,phenanthrena,anthracene,fluoranthene and pyrene,which means their source and migration mechanism aren’t the same.Presently,all the PAEs’ concentrations in the groundwater and surface water in the landfill and the around area are within the limits of China National Standard for Drinking Water.However,the PAEs pollution should be greatly paid attention to in order to avoid the further pollution.