Meta-analysis of the reduction of antibiotic-sensitive and antibiotic-resistant Escherichia coli as a result of low- and medium-pressure UV lamps

Author:

O'Flaherty Eithne1,Membré Jeanne-Marie2,Cummins Enda1

Affiliation:

1. School of Biosystems and Food Engineering, Agriculture and Food Science Centre, University College Dublin, Dublin, Ireland

2. SECALIM, INRA, Oniris, Université Bretagne Loire, 44307 Nantes, France

Abstract

Abstract It is vital that harmful bacteria are removed from water and wastewater treatment plants to prevent human/environmental exposure. This paper examines the log reduction of antibiotic-sensitive (AS) and antibiotic-resistant (AR) Escherichia coli (E. coli) as a result of low-pressure (LP) and medium-pressure (MP) UV lamps. A meta-analysis was performed and a mixed-effect model was created in which 303 data points on the log reduction of E. coli from UV treatment were collected. The results show that in order to achieve a 6 log reduction using an MP lamp, on average a UV level of 7.3 mJ/cm2 for AS E. coli and 7.5 mJ/cm2 for AR E. coli were required. Using an LP lamp, a UV level of 8.1 mJ/cm2 for AS E. coli and 8.4 mJ/cm2 for AR E. coli were required. The results show there is no significant difference between the inactivation of AR and AS E. coli at different UV levels. The model predicts that AR or AS E. coli will be inactivated at UV levels lower than the recommended UV operation conditions (40 mJ/cm2), but it is important to use this UV level to inactivate other harmful microorganisms.

Publisher

IWA Publishing

Subject

Water Science and Technology,Environmental Engineering

Reference41 articles.

1. Antibiotic-resistant bacteria in drinking water;Applied and Environmental Microbiology,1981

2. Austrian Standards Institute 2001 Plants for the Disinfection of Water Using Ultraviolet Radiation. https://shop.austrian-standards.at/Preview.action?preview=&dokkey=86685&selectedLocale=en (accessed 26 June 2017).

3. The drinking water treatment process as a potential source of affecting the bacterial antibiotic resistance;Science of the Total Environment,2015

4. Estimation method for serial dilution experiments;Journal of Microbiology Methods.,2014

5. R (transmissible drug resistance) factors in Salmonella typhimurium: pattern of transduction by phage P22 and ultraviolet-protection effect;Journal of General Microbiology,1968

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