Microbiological quality before and after nanofiltration

Autor: Guy Randon, Patrick Laurent, Pascal Bonne, J. Cavard, D. Gatel, Pierre Servais
Rok vydání: 1999
Předmět:
Zdroj: Journal - American Water Works Association. 91:62-72
ISSN: 0003-150X
DOI: 10.1002/j.1551-8833.1999.tb08716.x
Popis: The authors investigated microbiological behavior of a distribution system supplied initially with biologically treated water and then with nanofiltered water. Their purpose was to identify and evaluate the changes in microbiological water quality attributable to modifications in water treatment at the plant. During the course of the study, all data from varlous indicators of microbiological quality (i.e., heterotrophic plate counts, coliform enumeration, total direct counts, and fixed bacterial biomass) showed similar trends. Results indicated that the use of nanofiltration allows utilities to reduce chlorination of treated water and at least maintain or increase the microbiological quality of distributed water for areas with high residence times.
Databáze: OpenAIRE