Grantee Research Project Results
1999 Progress Report: Natural Remediation of Contaminated Soil and Ground Water by Barometric Pumping
EPA Grant Number: R826162Title: Natural Remediation of Contaminated Soil and Ground Water by Barometric Pumping
Investigators: Smith, James A.
Institution: University of Virginia
EPA Project Officer: Aja, Hayley
Project Period: January 1, 1998 through December 31, 2001 (Extended to August 31, 2002)
Project Period Covered by this Report: January 1, 1999 through December 31, 2000
Project Amount: $360,027
RFA: Exploratory Research - Environmental Engineering (1997) RFA Text | Recipients Lists
Research Category: Safer Chemicals , Land and Waste Management
Objective:
The primary objective is to develop and test a vertical flux chamber to measure the flux of volatile organic vapors from the unsaturated zone to the atmosphere. The flux chamber can be used to monitor natural attenuation of pollutants in ground water and the unsaturated zone.Progress Summary:
We have continued to make steady progress over the past year on our development of a vertical flux chamber to monitor natural attenuation of ground-water contamination by diffusion and barometric pumping. We have conducted three major field experiments, completed development and testing of our unsaturated-zone air flow and solute transport model (that includes water-table fluctuations), completed the measurement of air permeability and diffusion coefficient experiments on intact soil cores from the field site, performed a field air-permeability test, and completed the preliminary design of our vertical flux chamber.Future Activities:
In the upcoming year, we will begin our evaluation of the flux chamber in the laboratory under both diffusion-dominated and advection-dominated conditions. We also will complete analyses of our diffusion and permeability experiments and our field air pressure data. We will prepare three journal publications documenting these results.Journal Articles:
No journal articles submitted with this report: View all 21 publications for this projectSupplemental Keywords:
trichloroethene, natural attenuation, natural remediation, groundwater, chemical transport, restoration, cleanup, innovative technology, environmental chemistry, engineering, hydrology, measurement methods, EPA Region 2, northeast., Scientific Discipline, Water, Waste, Toxics, Remediation, Environmental Chemistry, 33/50, Contaminated Sediments, Groundwater remediation, VOCs, Hydrology, Environmental Engineering, contaminant transport, contaminated sediment, natural attenuation, barometric pumping, benzene, Tetrachloroethylene, chemical contaminants, soil sediment, groundwater plumes, carbon tetrachloride, verticle flux chamber, chemical transportProgress and Final Reports:
Original AbstractThe perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.