Record Display for the EPA National Library Catalog
RECORD NUMBER: 25 OF 50
|OLS Field Name||OLS Field Data|
|Main Title||Microbiological Characteristics of Third-Faucet Point-of-Use Devices.|
|Author||Reasoner, D. J. ; Blannon, J. C. ; Geldreich, E. E. ;|
|CORP Author||Environmental Protection Agency, Cincinnati, OH. Water Engineering Research Lab.|
|Additional Subjects||Filtration ; Microorganism control(Water) ; Faucets ; Filters ; Filter materials ; Water treatment devices ; Bacteria ; Silver ; Water quality ; Temperature ; Flow rate ; Reprints ;|
Studies of third-faucet point-of-use treatment devices indicated that the bacteriological quality of the product water varies among units of the same design as well as among units of different design. The development of bacterial populations is affected by the length of time a filter cartridge is in service, water temperature, flow rate, materials of construction, and the quality of the influent water. Although some units contain silver as a bacteriostatic agent, its effectiveness is questionable because the concentrations of heterotrophic bacteria associated with such units are often as high as those from units that do not contain silver.