Activated Sludge Microbial Community and Treatment Performance of Wastewater Treatment Plants in Industrial and Municipal Zones

Yongkui Yang, Longfei Wang, Feng Xiang, Lin Zhao and Zhi Qiao
Additional contact information
Yongkui Yang: School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
Longfei Wang: School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
Feng Xiang: School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
Lin Zhao: School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
Zhi Qiao: School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China

IJERPH, 2020, vol. 17, issue 2, 1-15

Abstract: Controlling wastewater pollution from centralized industrial zones is important for reducing overall water pollution. Microbial community structure and diversity can adversely affect wastewater treatment plant (WWTP) performance and stability. Therefore, we studied microbial structure, diversity, and metabolic functions in WWTPs that treat industrial or municipal wastewater. Sludge microbial community diversity and richness were the lowest for the industrial WWTPs, indicating that industrial influents inhibited bacterial growth. The sludge of industrial WWTP had low Nitrospira populations, indicating that influent composition affected nitrification and denitrification. The sludge of industrial WWTPs had high metabolic functions associated with xenobiotic and amino acid metabolism. Furthermore, bacterial richness was positively correlated with conventional pollutants (e.g., carbon, nitrogen, and phosphorus), but negatively correlated with total dissolved solids. This study was expected to provide a more comprehensive understanding of activated sludge microbial communities in full-scale industrial and municipal WWTPs.

Keywords: activated sludge; industrial zone; metabolic function; microbial community; wastewater treatment (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

Downloads: (external link)
https://www.mdpi.com/1660-4601/17/2/436/pdf (application/pdf)
https://www.mdpi.com/1660-4601/17/2/436/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jijerp:v:17:y:2020:i:2:p:436-:d:306679

Access Statistics for this article

IJERPH is currently edited by Ms. Jenna Liu

More articles in IJERPH from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().