Microbial community characterization of ozone-biofiltration systems in drinking water and potable reuse applications

Water Research
Daniel GerrityEric C Wert

Abstract

Microbial community structure in the ozone-biofiltration systems of two drinking water and two wastewater treatment facilities was characterized using 16S rRNA gene sequencing. Collectively, these datasets enabled comparisons by facility, water type (drinking water, wastewater), pre-oxidation (ozonation, chlorination), media type (anthracite, activated carbon), media depth, and backwash dynamics. Proteobacteria was the most abundant phylum in drinking water filters, whereas Bacteroidetes, Chloroflexi, Firmicutes, and Planctomycetes were differentially abundant in wastewater filters. A positive correlation was observed between media depth and relative abundance of Cyanobacteria in drinking water filters, but there was only a slight increase in one alpha diversity metric with depth in the wastewater filters. Media type had a significant effect on beta but not alpha diversity in drinking water and wastewater filters. Pre-ozonation caused a significant decrease in alpha diversity in the wastewater filters, but the effect on beta diversity was not statistically significant. An evaluation of backwash dynamics resulted in two notable observations: (1) endosymbionts such as Neochlamydia and Legionella increased in relative abundance fo...Continue Reading

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Citations

Aug 30, 2019·International Journal of Environmental Research and Public Health·Sheng DongFajun Jiang
Mar 21, 2020·Applied Microbiology and Biotechnology·Wenfang LinXin Yu
Sep 6, 2020·Environmental Pollution·Arun Lal SrivastavVinod Kumar Chaudhary
Jun 18, 2019·Current Opinion in Biotechnology·Mary Jo KirisitsAmeet J Pinto
Mar 27, 2019·International Journal of Hygiene and Environmental Health·Karen SettyJamie Bartram
May 5, 2021·The Science of the Total Environment·Tatiana C Guarin, Krishna R Pagilla

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