A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
DNAPL Dissolution in Bedrock Fractures And Fracture Networks
This project focused on measuring and evaluating the architecture, dissolution rate, and impact on groundwater quality of residually trapped tetrachloroethene (PCE) dense non-aqueous phase liquid (DNAPL) from discrete bedrock fractures and fracture networks constructed at the bench-scale. Results demonstrated that residual DNAPL in rock fractures is not well contacted by migrating water. This resulted in reduced dissolution rates, and persistence of DNAPL sources within the bedrock fractures. Bioaugmentation was effective at substantially enhancing the rate of DNAPL removal, despite dissolved PCE concentrations that were near solubility. Chemical oxidation was shown to be ineffective for treating DNAPL sources in bedrock fractures. This ineffectiveness was due to decreases in the effective DNAPL-water interfacial area (as measured using interfacial tracers) that were likely caused by oxidation reaction byproducts.
DNAPL Dissolution in Bedrock Fractures And Fracture Networks
This project focused on measuring and evaluating the architecture, dissolution rate, and impact on groundwater quality of residually trapped tetrachloroethene (PCE) dense non-aqueous phase liquid (DNAPL) from discrete bedrock fractures and fracture networks constructed at the bench-scale. Results demonstrated that residual DNAPL in rock fractures is not well contacted by migrating water. This resulted in reduced dissolution rates, and persistence of DNAPL sources within the bedrock fractures. Bioaugmentation was effective at substantially enhancing the rate of DNAPL removal, despite dissolved PCE concentrations that were near solubility. Chemical oxidation was shown to be ineffective for treating DNAPL sources in bedrock fractures. This ineffectiveness was due to decreases in the effective DNAPL-water interfacial area (as measured using interfacial tracers) that were likely caused by oxidation reaction byproducts.
DNAPL Dissolution in Bedrock Fractures And Fracture Networks
C. Schaefer (author) / J. McCray (author) / K. Christensen (author) / P. Altman (author) / P. Clement (author)
2011
145 pages
Report
No indication
English
Geology & Geophysics , Hydrology & Limnology , Ground water , Oxidation , Rock , Architecture , Bench tests , Chemicals , Dissolving , Impact , Interfaces , Liquids , Networks , Quality , Rates , Removal , Response , Solubility , Sources , Bioaugmentation , Tetrachloroethene , Bedrock , Chemical oxidation , Serdp collection , Serdp(Strategic environmental research and development program)
Dissolution of a Residual DNAPL in Variable Aperture Fractures
| British Library Conference Proceedings | 2000
A Polymer Flood to Recover DNAPL from Shallow Fractured Bedrock
| British Library Conference Proceedings | 2000
Modelling of DNAPL Behavior in Vertical Fractures
| British Library Online Contents | 2003
Integrated Characterization of DNAPL Source Zone Architecture in Clay Till and Limestone Bedrock
| BASE | 2014
Investigation into DNAPL transport in fractures using capillary tubes
| British Library Conference Proceedings | 1998