A field experiment to study the behavior of tetrachloroethylene in unsaturated porous media
Article Abstract:
The impact of source release rate and heterogeneity of porous media on the behavior of liquid-phase tetrachloroethylene (PCE) was studied. The focus was on the spatial distribution of PCE in the unsaturated zone of a sandy aquifer. One release allowed the PCE to infiltrate in a matter of minutes, while the other release allowed the PCE to enter the subsurface over a few hours. The results indicated that PCE migration was characterized by capillary forces and governed by the sands' bedded structure.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1992
User Contributions:
Comment about this article or add new information about this topic:
Long-term field comparison of ceramic and poly(tetrafluoroethene) porous cup soil water samplers
Article Abstract:
Research was done by the Danish Forest and Landscape Research Institute and the Technical University of Denmark comparing the reliability of soil water samplers made of ceramic with that of poly(tetrafluoroethene) samplers. Unlike previous short-term laboratory studies, this study compared the samplers over a long period of time under field conditions. The study examined the concentrations of several base cations and nonpurgeable organic carbon in both types of samplers.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1992
User Contributions:
Comment about this article or add new information about this topic:
Solute transport in porous media with sorption-site heterogeneity
Article Abstract:
A modified two-site sorption heterogeneity model explaining solute transport in natural porous media is described in terms of its time movements, with a probability density function (pdf) and rate sorption properties as the parameters. A simple two-site and a general gamma site pdf are used for comparison. The correlation between the parameters are presented.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1995
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Experimental study of the sampling artifact of chloride depletion from collected sea salt aerosols. Rationalization of an odor monitoring system: a case study of Lin-Yuan Petrochemical Park
- Abstracts: Experimental therapy of human glioma by means of a genetically engineered virus mutant. New lead to safer marrow transplants
- Abstracts: Atmospheric mercury speciation: concentrations and behavior of reactive gaseous mercury in ambient air. Predictive methods
- Abstracts: DDT, DDD, and DDE chlorination by zero-valent iron. Reductive dechlorination of 1,2,3,4-tetrachlorodibenzo-p-dioxin and its products by anaerobic mixed cultures from Saale River sediment
- Abstracts: Optimal field-scale groundwater remediation using neural networks and the genetic algorithm. Modeling the indoor environment