||Distribution System Microbiology: Disinfection Resistance, Disinfection Interference and Sample Variability.
Olson, B. H. ;
Wolfe, R. L. ;
Stewart, M. H. ;
McCoy, W. C. ;
||California Univ., Irvine. ;Southern California Metropolitan Water District, La Verne. ;Rohm and Haas Co., Spring House, PA.;Environmental Protection Agency, Cincinnati, OH. Water Engineering Research Lab.
Aquatic microbiology ;
Water distribution ;
Amino acids ;
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Several new concepts have been recently recognized as being increasingly important in water microbiology. Among these are included: (1) the difference in disinfection resistance of bacteria exposed directly to the disinfectant as opposed to those subcultured and then exposed; (2) the variation of population resistance to disinfection in situ; (3) the interference with chloramine formation caused by natural aminoacids or polypeptides in eutrophic waters that decreases disinfection efficiency; and, (4) the occurrence of discrete events within the distribution system that make it difficult to take representative samples. The paper presents data from our laboratory on each of the above subjects. (Copyright (c) J. Association Pharmaceutique Francaise pour l'Hydrologie, 16:253-268, Sept. 1985.)