Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Andrzej Wilczak"'
Publikováno v:
Journal - American Water Works Association. 109:54-63
Autor:
R. Rhodes Trussell, Manouchehr Boozarpour, David R. Hokanson, Andrew F. Degraca, Andrzej Wilczak
Publikováno v:
Journal - American Water Works Association. 102:52-64
Autor:
H. Hubert Lai, John W. Beland, Andrzej Wilczak, C. Tom Heaney, Ardeshir Assadi-Rad, Robert Berger, Laura J. Lazzelle, Linnea L. Hoover, Eric G. Kincannon, Hursey Baker, François Rodigari, James F. Smith
Publikováno v:
Journal - American Water Works Association. 95:94-106
Cationic treatment polymer, diallyldimethylammonium chloride (DADMAC), was the only significant source of N-nitrosodimethylamine (NDMA) precursors in tested waters at the East Bay Municipal Utility District. NDMA concentrations increased with higher
Publikováno v:
Journal - American Water Works Association. 95:94-106
The practical experiences gained at the East Bay Municipal Utility District (EBMUD) in California and factors from the literature affecting combined chlorine (chloramine) demand and decay were reviewed. The main goal was to emphasize the importance o
Publikováno v:
Journal - American Water Works Association. 88:74-85
Utilities in the United States that chloraminate were surveyed to evaluate the incidence of nitrification in distribution systems and determine whether nitrification can be predicted from basic system and water quality data. An estimated two thirds o
Autor:
Joseph P. Marcinko, Lee H. Odell, Joseph G. Jacangelo, Gregory J. Kirmeyer, Roy L. Wolfe, Andrzej Wilczak
Publikováno v:
Journal - American Water Works Association. 88:86-98
Of US water systems that chloraminate, an estimated two thirds experience some degree of nitrification in the distribution system. Measures utilities use to control nitrification were investigated through field sampling, evaluation of utility data, l
Publikováno v:
Journal - American Water Works Association. 85:98-104
Bench-scale tests were conducted to investigate the removal of dissolved manganese from Delaware River water. Prior pilot-plant results had indicated that manganese was not effectively removed by ozonation, sludge blanket clarification, and filtratio
Autor:
Gilbert Gordon, Bernard Bubnis, Stephen J. Gillette, Luke C. Adam, Andrzej Wilczak, Brian P. Hoyt
Publikováno v:
Journal - American Water Works Association. 85:89-97
Experiments were carried out to confirm the presence of chlorate ion (CIO3") in the treated water of utilities that use hypochlorination. Sixteen commercially produced, concentrated liquid hypochlorite feedstocks were analyzed for CIO3", and levels a
Autor:
Thomas M. Keinath, Andrzej Wilczak
Publikováno v:
Water Environment Research. 65:238-244
The rate of sorption of copper(II) and lead(II) onto activated carbons Nuchar SA and Filtrasorb 400 was observed to occur rapidly at the outset, followed by a slow and prolonged sorption. This indicates that previous sorption studies conducted for sh
Publikováno v:
Journal - American Water Works Association. 84:85-94
Surface-water treatment plants are required by the Surface Water Treatment Rule to remove viruses and Giardia lamblia cysts or to inactivate them to specific levels. Particle removal data can be used to demonstrate the level of Giardia removal provid