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Disinfection of biofilm bacteria on ...

Chang, Li.

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Disinfection of biofilm bacteria on drinking water piping surfaces using ozone and monochloramine.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Disinfection of biofilm bacteria on drinking water piping surfaces using ozone and monochloramine./
Author:	Chang, Li.
Description:	146 p.
Notes:	Source: Masters Abstracts International, Volume: 46-03, page: 1683.
Contained By:	Masters Abstracts International46-03.
Subject:	Engineering, Environmental. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MR33213
ISBN:	9780494332139

Disinfection of biofilm bacteria on drinking water piping surfaces using ozone and monochloramine.
Chang, Li.

Disinfection of biofilm bacteria on drinking water piping surfaces using ozone and monochloramine. - 146 p.

Source: Masters Abstracts International, Volume: 46-03, page: 1683.

Thesis (M.Sc.)--University of Alberta (Canada), 2007.

This thesis examines a protocol using ozone and monochloramine for disinfection of biofilm bacteria on cement mortar lined pipe used in drinking water distribution systems. An experimental study was carried out in which biofilms were cultivated on cement surfaces in a laboratory biofilm reactor. The biofilms were exposed to ozone, monochloramine and to sequential combinations of ozone followed by monochloramine. An improved procedure for removal and enumeration of biofilm bacteria from the surfaces was developed and tested. Inactivation of biofilm bacteria by ozone was a nonlinear function of the ozone Ct product and was limited to 1.7 log at an ozone Ct of 120 mg x min/L. In contrast, exposure to a monochloramine Ct product of 3,600 mg x min/L resulted in 2.7 log inactivation. Evidence of a synergistic effect when ozone and monochloramine were applied sequentially was inconclusive. The results provide a more rational basis for ozone disinfection of water pipelines in practice and suggested that monochloramine might be an effective disinfectant for biofilm in pipe.

ISBN: 9780494332139Subjects--Topical Terms:

783782
Engineering, Environmental.

Disinfection of biofilm bacteria on drinking water piping surfaces using ozone and monochloramine.
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100 1 $a Chang, Li. $3 1263012
245 1 0 $a Disinfection of biofilm bacteria on drinking water piping surfaces using ozone and monochloramine.
300 $a 146 p.
500 $a Source: Masters Abstracts International, Volume: 46-03, page: 1683.
502 $a Thesis (M.Sc.)--University of Alberta (Canada), 2007.
520 $a This thesis examines a protocol using ozone and monochloramine for disinfection of biofilm bacteria on cement mortar lined pipe used in drinking water distribution systems. An experimental study was carried out in which biofilms were cultivated on cement surfaces in a laboratory biofilm reactor. The biofilms were exposed to ozone, monochloramine and to sequential combinations of ozone followed by monochloramine. An improved procedure for removal and enumeration of biofilm bacteria from the surfaces was developed and tested. Inactivation of biofilm bacteria by ozone was a nonlinear function of the ozone Ct product and was limited to 1.7 log at an ozone Ct of 120 mg x min/L. In contrast, exposure to a monochloramine Ct product of 3,600 mg x min/L resulted in 2.7 log inactivation. Evidence of a synergistic effect when ozone and monochloramine were applied sequentially was inconclusive. The results provide a more rational basis for ozone disinfection of water pipelines in practice and suggested that monochloramine might be an effective disinfectant for biofilm in pipe.
590 $a School code: 0351.
650 4 $a Engineering, Environmental. $3 783782
650 4 $a Engineering, Sanitary and Municipal. $3 1018731
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710 2 0 $a University of Alberta (Canada). $3 626651
773 0 $t Masters Abstracts International $g 46-03.
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