MICROSCOPIC MASS TRANSFER OF TNT ON SOIL

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NETL

外文摘要：We report on the microscopic mass transfer of TNT on soil particles using scanning electron microscopy (SEM) and energy dispersed X ray fluorescence spectroscopy (EDAX)。 A change in the morphology and spatial distribution of TNT on soil is observed in SEM measurements a few hours after sample preparation。 The change in morphology and spatial distribution is found to depend on the soil pH。 Evidence is also found for the disappearance of TNT from soil as reflected by a decrease in the N fluorescence signal intensity with time after the preparation of TNT/soil mixtures。 The results are modeled with the lattice model that describes the diffusivity solid-solid and provide the transference area and the diffusivity to which TNT transports in soil。

外文关键词：

SEM (scanning electron microscope)EDAXspatial distributionmathematical modelingTNTpH

作者：

Olga Liliana Rizo、Tatiana Luna-Pineda、rea Carolina Cabanzo、Joel Mendez、Samuel P. Hernez-Rivera、Miguel E. Castro-Rosario

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作者单位：

Chemical Imaging Center Center for Chemical Sensor Development The University of Puerto Rico at Mayaguez Mayagueez, Puerto Rico PR 00681-9019

会议名称：

Conference on Detection and Remediation Technologies for Mines and Minelike Targets X pt.2; 20050328-0401; Orlando,FL(US)

会议地点：

Orlando,FL(US)

会议母体文献：

Detection and Remediation Technologies for Mines and Minelike Targets X pt.2

页码：

P.1335-1345

出版时间：

2005