Main Title |
Collection of sulfur gases with chemically-treated filters / |
Author |
Namie, George R. ;
Reardon, Robert F. ;
Schmidt, Norbert ;
Spiller., Lester L.
|
Other Authors |
|
CORP Author |
Environmental Sciences Research Lab., Research Triangle Park, N.C. Atmospheric Chemistry and Physics Div. |
Publisher |
Environmental Sciences Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, |
Year Published |
1978 |
Report Number |
PB280984; EPA-600/3-78-041 |
Stock Number |
PB-280 984 |
OCLC Number |
52414069 |
Subjects |
Sulfur dioxide ;
Hydrogen sulfide ;
Aerosols
|
Additional Subjects |
Air pollution control ;
Air filters ;
Hydrogen sulfide ;
Sulfur dioxide ;
Membranes ;
Aerosols ;
Silver nitrate ;
Tartaric acid ;
Lithium hydroxide ;
Potassium carbonates ;
Performance evaluation
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EJBD |
EPA 600-3-78-041 |
|
Headquarters Library/Washington,DC |
07/22/2014 |
EKBD |
EPA-600/3-78-041 |
|
Research Triangle Park Library/RTP, NC |
07/18/2003 |
ELBD ARCHIVE |
EPA 600-3-78-041 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
ESAD |
EPA 600-3-78-041 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
NTIS |
PB-280 984 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
iii, 21 p. : ill. ; 28 cm. |
Abstract |
Chemically treated membrane filters were evaluated to collect hydrogen sulfide and sulfur dioxide. Four chemical treatments were tested. Silver nitrate and silver nitrate-tartaric acid filters were used to collect hydrogen sulfide, and lithium hydroxide and potassium bicarbonate were used to collect sulfur dioxide. Sampling was performed using a tandem filter holder so that the test gas would pass through each filter in sequence. A pre-filter was used to remove the aerosol component. For collecting hydrogen sulfide, the silver nitrate filters had an efficiency of 84% when used with a flow rate of 1.0 liter/minute; for collecting sulfur dioxide, the lithium hydroxide filters had an efficiency of 85% at 1.0 liter/minute. It was found that the silver nitrate filters began to absorb sulfur dioxide after several days; thus, the test gas should pass through the lithium hydroxide treated filter prior to the silver nitrate treated filter. |
Notes |
"EPA-600/3-78-041." "April 1978." PB 280 984--NTIS. Includes bibliographical references (p. 21). |