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RECORD NUMBER: 9 OF 11

OLS Field Name OLS Field Data
Main Title Pneumatic Pumping Test for Soil Vacuum Extraction.
Author Cho, J. S. ; DiGiulio, D. C. ;
CORP Author Robert S. Kerr Environmental Research Lab., Ada, OK.
Publisher cAug 92
Year Published 1992
Report Number EPA/600/J-92/391;
Stock Number PB93-121234
Additional Subjects Soil treatment ; Remedial action ; Land pollution control ; Aviation fuels ; Pumps ; Leakage ; Underground storage ; Soil contamination ; Pneumatic tools ; Performance evaluation ; Storage tanks ; In-situ processing ; Permeability ; Reprints ; Soil vacuum extraction
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB93-121234 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/08/1993
Collation 9p
Abstract In-situ pneumatic pumping tests were performed to estimate the pneumatic permeability at a site containing soils contaminated with aviation gasoline. Determination of pneumatic permeability was necessary to evaluate soil-air discharge or pore volume exchange rates. Pressure propagation was measured in clustered vapor probes during the application of vacuum and positive pressure. An analytical solution for soil-air pressure distribution with a non-linear data fitting algorithm was adopted to obtain the pneumatic permeability from soil-air pressure distribution. Pneumatic pumping tests indicated substantially higher air discharge rates in the immediate vicinity of wells. The air discharge rate dissipated rapidly as distance from the wells increased. Application of increased vacuum or injection pressure resulted in substantially increased air flow in the immediate vicinity with small changes at a distance. This fact indicates that effective design should be based on air flow fields near wells, and the site specific design criteria should be determined with carefully conducted tests.
Supplementary Notes Pub. in Environmental Progress, v11 n3 p228-233 Aug 92.
NTIS Title Notes Journal article.
Title Annotations Reprint: Pneumatic Pumping Test for Soil Vacuum Extraction.
Category Codes 68; 97R; 97K
NTIS Prices PC A02/MF A01
Primary Description 600/15
Document Type NT
Cataloging Source NTIS/MT
Control Number 300826328
Origin NTIS
Type CAT