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

Water Science and Technology : a Journal of the International Association on Water Pollution Research
Eithne O'FlahertyEnda Cummins

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.

References

Oct 1, 1977·Antimicrobial Agents and Chemotherapy·M J Tribe, R J Pinney
Jan 1, 1968·Photochemistry and Photobiology·W Harm
Feb 1, 1982·Applied and Environmental Microbiology·M C Meckes
Aug 1, 1981·Applied and Environmental Microbiology·J L ArmstrongR J Seidler
Apr 15, 2006·Photochemistry and Photobiology·Ronald O RahnMihaela I Stefan
Jul 20, 2007·BMC Medical Research Methodology·Rahim MoineddinRichard H Glazier
Jan 30, 2008·Journal of Industrial Microbiology & Biotechnology·Puay Hoon Quek, Jiangyong Hu
Apr 28, 2009·Water Research·Andrew D GronewoldKenneth H Reckhow
Jul 8, 2009·Applied and Environmental Microbiology·Chuanwu XiJerome Nriagu
Oct 12, 2013·Journal of Food Protection·Jeanne-Marie MembréCatherine Magras
Sep 11, 2014·Journal of Microbiological Methods·Avishai Ben-David, Charles E Davidson
Jul 8, 2015·The Science of the Total Environment·Xiaohui BaiXiang Xiao
Nov 12, 2017·The Science of the Total Environment·E O'FlahertyE Cummins

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Citations

Mar 7, 2019·World Journal of Microbiology & Biotechnology·Bastian SchorrAndreas Burkovski
Oct 13, 2018·The Science of the Total Environment·E O'FlahertyE Cummins

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