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RECORD NUMBER: 223 OF 882

OLS Field Name OLS Field Data
Main Title Design scale-up suitability for air-stripping columns /
Author Wallman, Harold. ; Cummins, M. D.
Other Authors
Author Title of a Work
Cummins, Michael D.
CORP Author Environmental Protection Agency, Cincinnati, OH. Water Engineering Research Lab. ;Jacobson (Nathan L.), Chester, CT. ;Brewster, NY.
Publisher Water Engineering Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
Year Published 1986
Report Number EPA/600/2-86/009
Stock Number PB86-154176
Subjects Strippers (Chemical technology)
Additional Subjects Organic compounds ; Water supply ; Water pollution control ; Columns(Process engineering) ; Design criteria ; Pilot plants ; Volatility ; Column packings ; Mathematical models ; Chlorine organic compounds ; Ethylene ; Acceptability ; Mass transfer ; Temperature ; Graphs(Charts) ; Air stripping ; Ethylene/trichloro ; Ethylene/dichloro ; Ethylene/tetrachloro
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=9101NV68.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB86-154176 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation 115 pages ; 28 cm
Abstract
Air-stripping in a packed column is sometimes used to remove volatile organic compounds from contaminated water supplies. Since the design engineer frequently uses data from a pilot air-stripping column to design a full-scale system, the suitability of such design scale-up was investigated. A total of 48 experimental runs was made in packed columns of four different diameters (6,12,24, and 57 in.) at air-to-water ratios ranging from 5:1 to 50:1. Water from the Village of Brewster, NY, well fields (contaminated with PCE, TCE and cis-1,2 dichloro-ethylene) was used. Various packing types (1/2, 1 and 3 in. saddles, 2 in. TRIPACKS) were used in the experimental runs. Generally, it was found that the mass transfer coefficient increased with column diameter, i.e., mass transfer coefficients obtained from a pilot column tend to be conservative.
Notes
"January 1986." "Cooperative agreement no. CR-810247-01." "This study was conducted in cooperation with The Village of Brewster, New York." Microfiche.