Microbial Community Structures and Dynamics in the O3/bac Drinking Water Treatment Process
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Authors
Tian, J
Lu, J
Zhang, Y
Li, JC
Sun, LC
Hu, ZL
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MDPI
Abstract
Effectiveness of drinking water treatment, in particular pathogen control during the water treatment process, is always a major public health concern. In this investigation, the application of PCR-DGGE technology to the analysis of microbial community structures and dynamics in the drinking water treatment process revealed several dominant microbial populations including: α-Proteobacteria, β-Proteobacteria, γ-Proteobacteria, Bacteroidetes, Actinobacteria Firmicutes and Cyanobacteria. α-Proteobacteria and β-Proteobacteria were the dominant bacteria during the whole process. Bacteroidetes and Firmicutes were the dominant bacteria before and after treatment, respectively. Firmicutes showed season-dependent changes in population dynamics. Importantly, γ-Proteobacteria, which is a class of medically important bacteria, was well controlled by the O3/biological activated carbon (BAC) treatment, resulting in improved effluent water bio-safety.
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Keywords
Drinking water; Advanced treatment; Bacteria; Microbial community structures
Source
International Journal for Environmental Research and Public Health, vol.11(6), pp.6281 - 6290
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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).