Microbial Community Structures and Dynamics in the O3/BAC Drinking Water Treatment Process

International Journal of Environmental Research and Public Health

Jian Tian¹  Jun Lu¹  Yu Zhang¹  Jian-Cheng Li¹  Li-Chen Sun¹ 

[1] Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science, Shenzhen Engineering Laboratory of Marine Algal Biotechnology, College of Life Science, Shenzhen University, Shenzhen 518060, China; E-Mails:

关键词: drinking water;    advanced treatment;    bacteria;    microbial community structures;   

DOI  :  10.3390/ijerph110606281

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.