Record Display for the EPA National Library Catalog
RECORD NUMBER: 43 OF 997
|OLS Field Name||OLS Field Data|
|Main Title||An evaluation of the secondary effects of air stripping /|
|Author||Umphres, Mark D. ; Umphres, M. D. ; Van Wagner, J. H.|
|CORP Author||Montgomery (James M.) Consulting Engineers, Inc., Pasadena, CA. Montgomery Labs. ;Valley County Water District, Baldwin Park, CA.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.|
|Publisher||Risk Reduction Engineering Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,|
|Subjects||Sewage--Purification. ; Water reuse.|
|Additional Subjects||Aerators ; Column packings ; Drinking water ; Air pollution control ; Mathematical models ; Graphs(Charts) ; Performance evaluation ; Capitalized costs ; Operating costs ; Ground water ; Noise(Sound) ; Assessments ; Design criteria ; Particles ; Scaling ; Corrosion ; Bacteria ; Volatile organic compounds ; Water pollution control equipment ; Ethylene/trichloro ; Risk assessment ; Air quality|
|Collation||ix, 87 pages ; 28 cm|
At a 2.9 million gallon per day well contaminated with several volatile organic compounds (VOCs), principally trichloroethylene (TCE), a packed tower aerator (PTA) was pilot tested, designed, constructed and monitored during its first seven months of operation. Pilot testing was based on gas/liquid mass transfer theory. Calculated mass transfer coefficients coupled with this theory were used to design the full-scale aerator for TCE control. In addition to liquid-phase VOCs, other parameters including bacteria, temperature, pH, dissolved oxygen, calcium, alkalinity, turbidity, particle counts, noise, and air-phase VOCs were monitored to assess the secondary effects of aeration.
Cooperative agreement CR-809974. "March 1989." Includes bibliographical references (pages 86-87).