The capacity of wastewater treatment plants drives bacterial community structure and its assembly

Young Kyung Kim, Keunje Yoo, Min Sung Kim, Il Han, Minjoo Lee, Bo Ram Kang, Tae Kwon Lee, Joonhong Park

Research output: Contribution to journalArticle

Abstract

Bacterial communities in wastewater treatment plants (WWTPs) affect plant functionality through their role in the removal of pollutants from wastewater. Bacterial communities vary extensively based on plant operating conditions and influent characteristics. The capacity of WWTPs can also affect the bacterial community via variations in the organic or nutrient composition of the influent. Despite the importance considering capacity, the characteristics that control bacterial community assembly are largely unknown. In this study, we discovered that bacterial communities in WWTPs in Korea and Vietnam, which differ remarkably in capacity, exhibit unique structures and interactions that are governed mainly by the capacity of WWTPs. Bacterial communities were analysed using 16S rRNA gene sequencing and exhibited clear differences between the two regions, with these differences being most pronounced in activated sludge. We found that capacity contributed the most to bacterial interactions and community structure, whereas other factors had less impact. Co-occurrence network analysis showed that microorganisms from high-capacity WWTPs are more interrelated than those from low-capacity WWTPs, which corresponds to the tighter clustering of bacterial communities in Korea. These results will contribute to the understanding of bacterial community assembly in activated sludge processing.

Original languageEnglish
Article number14809
JournalScientific reports
Volume9
Issue number1
DOIs
Publication statusPublished - 2019 Dec 1

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Bacterial Structures
Waste Water
Korea
Sewage
Vietnam
rRNA Genes
Cluster Analysis
Food

All Science Journal Classification (ASJC) codes

  • General

Cite this

Kim, Young Kyung ; Yoo, Keunje ; Kim, Min Sung ; Han, Il ; Lee, Minjoo ; Kang, Bo Ram ; Lee, Tae Kwon ; Park, Joonhong. / The capacity of wastewater treatment plants drives bacterial community structure and its assembly. In: Scientific reports. 2019 ; Vol. 9, No. 1.
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The capacity of wastewater treatment plants drives bacterial community structure and its assembly. / Kim, Young Kyung; Yoo, Keunje; Kim, Min Sung; Han, Il; Lee, Minjoo; Kang, Bo Ram; Lee, Tae Kwon; Park, Joonhong.

In: Scientific reports, Vol. 9, No. 1, 14809, 01.12.2019.

Research output: Contribution to journalArticle

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