Dissolution kinetics of BTEX and PAHs from creosote pools and smear zones monitored in well controlled large scale laboratory experiments

机译：在良好控制的大规模实验室实验中监测杂酚油池和涂片区中BTEX和PAH的溶解动力学

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A large-scale laboratory experiment was performed in order to determine the long-term dissolution behavior of BTEX and PAHs form creosote in residual phase and from creosote in pools. The pool dissolution experiment allowed to determine transverse vertical dispersivities, which showed good agreement when derived form vertical concentration profiles or from the overall fluxes. The contaminant concentrations during dissolution of the creosote blobs compared well with predictions based on Raoult's law and the equilibrium retardation of the dissolution front in the smear zone. Typical time scales of BTEX and PAH-dissolution from residual NAPL in the smear zone are in the order of weeks to months. In contrast, the removal of PAHs from the creosote pool takes decades to centuries due to the small transverse dispersivities of less than 0.2 mm.

机译：为了确定BTEX和PAHs在残余相中为杂酚油和在池中杂酚油的长期溶解行为，进行了大规模的实验室实验。池溶解实验允许确定横向垂直分散度，当从垂直浓度分布图或从总通量导出时，显示出良好的一致性。杂酚油滴溶解过程中的污染物浓度与基于拉乌尔定律的预测以及涂片区溶解前沿的平衡滞后相比较。从涂片区中残留的NAPL中溶解BTEX和PAH的典型时间范围为数周至数月。相反，由于少于0.2 mm的小横向分散度，从杂酚油池中去除PAHs需要数十年到几个世纪的时间。

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来源
《International Conference on Groundwater Research, Jun 6-8, 2000, Copenhagen, Denmark》|2000年|p.81-82|共2页
会议地点 Copenhagen Denmark
作者
Ch. Eberhardt; P. Grathwohl;
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作者单位

Applied Geology, University of Tubingen, Tubingen, Germany;

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会议组织
原文格式 PDF
正文语种 eng
中图分类 P6;
关键词
transverse dispersion; NAPL; dissolution; pools;

机译：横向分散NAPL；解散水池;

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Dissolution kinetics of BTEX and PAHs from creosote pools and smear zones monitored in well controlled large scale laboratory experiments

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