By Bernard H. Kueper, Hans F. Stroo, Catherine M. Vogel, C. Herb Ward

The objective of this publication is to aid engineers and scientists greater comprehend dense nonaqueous part liquid (DNAPL) infection of groundwater and the equipment and expertise used for characterization and remediation. Remediation of DNAPL resource zones is particularly tricky and arguable and has to be in keeping with state of the art wisdom of the habit (transport and destiny) of nonaqueous section drinks within the subsurface and placement particular geology, chemistry and hydrology. This quantity is concentrated at the characterization and remediation of nonaqueous section chlorinated solvents and it's was hoping that mid-level engineers and scientists will locate this booklet worthwhile in realizing the present state-of-practice of DNAPL resource quarter administration and remediation.

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Sample text

9. 10. 11. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. List of Figures Conceptual models for in situ chemical reduction of TCE initiated by microbial metabolism that generates solid-phase reductants: FeS, green rust, Fell-doped goethite, and magnetite. Redox ladder of one-electron reduction potentials for dechlorination and standard reduction potentials putative reductants involved in ISCR. Schematic illustrating an entrapped NAPL source of contaminants to an aquifer. Hydrophobic segments of the polymer coating swell in TCE (NAPL) while hydrophilic segments swell in water.

Site Mass Balance Considerations ...... .......... ......... Mass Discharge and Flux During Plume Evolution . . . . . . . . . . . . Estimating Source Strength Functions ....................................... Remedial Considerations ...................................................... 3 xxxi Methods for Mass Discharge and Mass Flux Measurement . . . . . . . . . . 4 Fort Lewis DNAPL Case Study for Mass Flux Evaluation . . . . . . .. . . . . . 5 Transect Method ................................................................

437 Fort Lewis East Gate Disposal Yard: Whey Injections . . . . . . . . 438 Tarheel Army Missile Plant, North Carolina: Edible Oil Injection ......................................................... 11 Lessons Learned ........................................................................ 12 Future Developments ................................................................... 4 Improved Understanding and Treatment of Low-Permeability Regions .......................................................................

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