Record Display for the EPA National Library Catalog
RECORD NUMBER: 493 OF 2135
|OLS Field Name||OLS Field Data|
|Main Title||Disinfection by-product formation by alternative disinfectants and removal by granular activated carbon /|
|Author||Koffskey, Wayne E. ; Lykins, B. W.|
|CORP Author||Jefferson Parish Dept. of Public Works, LA.;Environmental Protection Agency, Cincinnati, OH. Water Engineering Research Lab.|
|Publisher||Water Engineering Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,|
|Subjects||Water--Purification--Disinfection--By-products. ; Disinfection and disinfectants--By-products.|
|Additional Subjects||Disinfectants ; Environmental chemical substitutes ; Water treatment ; Byproducts ; Granular activated carbon treatment ; Potable water ; Water pollution control ; Filtration ; Water quality ; Alternatives ; Microorganisms ; Halogen organic compounds ; Performance evaluation ; Graphs(Charts) ; Safe Drinking Water Act|
|Collation||209 pages : illustrations ; 28 cm|
The effects of the use of alternative disinfectants on the formation of halogenated disinfection by-products (DBPs) including total organic halide, trihalomethanes, haloacetic acids, haloacetonitriles, haloketones, chloral hydrate, and chloropicrin, were examined along with the ability of granular activated carbon (GAC) to remove these by-products and their precursors. Microbiological information was also obtained on the operating system and included heterotropic plate count, total coliform, and assimilable organic carbon (AOC). The ability of the alternative disinfectants to inactivate MS2 coliphage was also examined. One other aspect of the project was to provide sampling sites for health effects research by EPA which will be reported elsewhere. The operating system was comprised of four parallel pilot column process streams consisting of a 30 min contact chamber followed by a sand column in series with a GAC column having a 20 min empty bed contact time. One of four disinfectants, ozone, chlorine dioxide, chlorine, or chloramines, was applied at the beginning of each process stream. A fifth nondisinfected process stream consisting of only a sand column in series with a GAC column was used as a control.
"August 1993." Includes bibliographical references (page 185). "EPA/600/R-93/136." "Cooperative agreement no. CR814033." Microfiche.