Please use this identifier to cite or link to this item: http://hdl.handle.net/11452/23861
Title: Comparison of indicator bacteria inactivation by the ultraviolet and the ultraviolet/hydrogen peroxide disinfection processes in humic waters
Authors: Uludağ Üniversitesi/Mühendislik Fakültesi/Çevre Mühendisliği Bölümü.
0000-0002-6364-4087
0000-0003-0877-402X
Teksoy, Arzu
Alkan, Ufuk
Çalışkan, Sevil Eleren
Şengül, Burcu
Topaç, Fatma Olcay
Başkaya, Hüseyin Savaş
AAH-1297-2021
AAH-1853-2021
AAH-3042-2021
AAZ-1166-2020
13410107300
6603651365
25652855100
56461277600
16319975800
8574002200
Keywords: Environmental sciences & ecology
Public, environmental & occupational health
Microbiology
Water resources
B. subtilis spore
E. coli
Fulvic acid
Hydrogen peroxide
P. aeruginosa
UV radiation
Bacillus-subtilis spores
Treated waste-water
Low-pressure uv
Hydrogen-peroxide
Escherichia-coli
Drinking-water
Advanced oxidation
Surface waters
Radiation
Resistance
Bacillus subtilis
Escherichia coli
Pseudomonas aeruginosa
Bacterium
Bioindicator
Comparative study
Disinfection
Fulvic acid
Humid environment
Hydrogen peroxide
Surface water
Ultraviolet radiation
Water pollution
Water treatment
Issue Date: Dec-2011
Publisher: IWA Publishing
Citation: Teksoy, A. vd. (2011). "Comparison of indicator bacteria inactivation by the ultraviolet and the ultraviolet/hydrogen peroxide disinfection processes in humic waters". Journal of Water and Health, 9(4), 659-669.
Abstract: The aim of the present study was to evaluate responses of potential indicator bacteria (i.e. Escherichia coli, Pseudomonas aeruginosa, Bacillus subtilis) to the ultraviolet (UV) radiation and the UV/hydrogen peroxide (H2O2) disinfection processes of surface waters with different qualities in terms of humic content. The UV and the UV/H2O2 processes were applied to waters containing various concentrations of fulvic acid in order to inactivate E. coli, P. aeruginosa and B. subtilis spores. Three fulvic acid (0, 2 and 6 mg l(-1)) and four H2O2 (0, 10, 25 and 50 mg l(-1)) concentrations were used. Results showed that the k values of E. coli, P. aeruginosa and B. subtilis spores varied between 2.22 and 4.00, 1.73 and 3.58, and 1.40 and 1.86, respectively, in all test conditions. The sensitivity of the test organisms followed a decreasing order of E. coli > P. aeruginosa > B. subtilis. Results of the study indicated that the blocking effect of fulvic acid for the UV light was diminished by using H2O2 in combination with the UV radiation. Findings of the present study strongly suggested that the UV/H2O2 process was significantly effective on the inactivation of E. coli and P. aeruginosa in humic waters, whereas it induced little or no apparent contribution to the disinfection efficiency of B. subtilis spores.
URI: https://doi.org/10.2166/wh.2011.205
https://iwaponline.com/jwh/article/9/4/659/31130/Comparison-of-indicator-bacteria-inactivation-by
http://hdl.handle.net/11452/23861
ISSN: 1477-8920
Appears in Collections:Scopus
Web of Science

Files in This Item:
File Description SizeFormat 
Teksoy_vd_2011.pdf634.63 kBAdobe PDFThumbnail
View/Open


This item is licensed under a Creative Commons License Creative Commons