Factors affecting microbial inactivation kinetics in disinfected drinking water.
Published: 2004
Language: eng
Number of pages: 136
Description: Microbial quality may degrade in drinking water distribution systems despite maintaining a disinfectant residual. This study attempted to explain the survival of microorganisms in disinfected environments. Two major hypotheses were tested. First, organisms isolated from disinfected environments were studied to determine if they were inherently more resistant to further disinfection, compared to organisms which have never come into contact with disinfectants. It was found that antecedent growth conditions were more important for resistance to disinfectants than the environmental origin. Second, the impact of particulate matter on disinfection was investigated. It was hypothesized that particulate matter protected microorganisms from disinfection, and it was expected that enmeshment of organisms within particles would protect microorganisms from not only chemical, but also physical disinfectants. No conclusive evidence was found to suggest the particles used in these experiments had a significant impact on inactivation kinetics.
Notes: Adviser:  Ron Hofmann.

Thesis (M.A.Sc.)--University of Toronto, 2004.

Electronic version licensed for access by U. of T. users.

Source: Masters Abstracts International, Volume: 43-03, page: 0957.

MICR copy on microfiche (2 microfiches).