Main Title |
Design scale-up suitability for air-stripping columns / |
Author |
Wallman, Harold. ;
Cummins, M. D.
|
Other Authors |
|
CORP Author |
Environmental Protection Agency, Cincinnati, OH. Water Engineering Research Lab. ;Jacobson (Nathan L.), Chester, CT. ;Brewster, NY. |
Publisher |
U.S. Environmental Protection Agency, Office of Research and Development, Water Engineering Research Laboratory, |
Year Published |
1986 |
Report Number |
PB86-154176; EPA/600/2-86/009 |
Stock Number |
PB86-154176 |
OCLC Number |
733617385 |
Subjects |
Water--Purification
|
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 |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EHAD |
EPA 600-2-86-009 |
|
Region 1 Library/Boston,MA |
04/10/2014 |
NTIS |
PB86-154176 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
106 p. : ill. ; 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 |
"EPA/600/2-86/009." "PB86-154176." "Cooperative Agreement No. CR-810274-01." "January 1986." "Project Officer J. Keith Carswell." "This study was conducted in cooperation with The Village of Brewster, New York." |
Contents Notes |
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. |