Record Display for the EPA National Library Catalog
RECORD NUMBER: 3 OF 7
|OLS Field Name||OLS Field Data|
|Main Title||Project Summary: Ultraviolet Disinfection of a Secondary Effluent. Measurement of Dose and Effects of Filtration.|
|Author||Johnson, J. D. ; Qualls, R. G. ;|
|CORP Author||North Carolina Univ. at Chapel Hill. Dept. of Environmental Sciences and Engineering.;Environmental Protection Agency, Cincinnati, OH. Municipal Environmental Research Lab.|
|Additional Subjects||Ultraviolet radiation ; Water treatment ; Dosage ; Chemical reactors ; Disinfection ; Filtration ; Bioassay ; Ultraviolet lamps ; Spacing ; Survival ; Coliform bacteria ; Absorption ; Selectivity ;|
Ultraviolet (UV) disinfection of wastewater secondary effluent was investigated in a two-phase study to develop methods for measuring UV dose and to determine the effects of filtration on UV disinfection. The first phase of the study involved a pilot plant study comparing filtration, water quality parameters, and two reactors. The pilot plant study led to laboratory experiments involving: (1) the development of a method for in situ measurement of intensity using a calibrated bioassay, (2) experimental verification of a method for calculating intensities, (3) evaluation of the role of lamp spacing in dose efficiency, and (4) simulation of UV disinfection in continuous flow.