Correlating microbial community compositions with environmental factors in activated sludge from four full-scale municipal wastewater treatment plants in Shanghai, China

Activated sludge system is an important process of domestic and industrial wastewater treatment containing highly diverse microbial communities. In this study, high-throughput sequencing was applied to examine the microbial community composition and diversity of activated sludge samples from four fu...

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Veröffentlicht in:Applied microbiology and biotechnology 2016-05, Vol.100 (10), p.4663-4673
Hauptverfasser: Gao, Pin, Xu, Wenli, Sontag, Philip, Li, Xiang, Xue, Gang, Liu, Tong, Sun, Weimin
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creator Gao, Pin
Xu, Wenli
Sontag, Philip
Li, Xiang
Xue, Gang
Liu, Tong
Sun, Weimin
description Activated sludge system is an important process of domestic and industrial wastewater treatment containing highly diverse microbial communities. In this study, high-throughput sequencing was applied to examine the microbial community composition and diversity of activated sludge samples from four full-scale municipal wastewater treatment plants (WWTPs) in Shanghai. A relationship between microbial communities and environmental variables was examined. Proteobacteria was the most dominant phylogenetic group, followed by Bacteroidetes and Firmicutes . A total of 166 genera were commonly shared by all seven sludge samples, including Zoogloea , Dechloromonas , Thauera , Nitrospira , Arcobacter , etc. Besides these shared populations, certain unique bacterial populations were found abundant in individual sludge sample. Canonical correspondence analysis (CCA) indicated that influent COD and pH had the greatest influence on microbial community compositions, whereas dissolved oxygen (DO) exhibited the least influence. The operating process was likely to foster diversity of the microbial communities inhabiting the wastewater treatment facilities. Alternative operation methods including a fluctuation of anoxic, oxic, and anaerobic conditions were favorable for promoting the growth of diverse microbial populations in activated sludge systems.
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In this study, high-throughput sequencing was applied to examine the microbial community composition and diversity of activated sludge samples from four full-scale municipal wastewater treatment plants (WWTPs) in Shanghai. A relationship between microbial communities and environmental variables was examined. Proteobacteria was the most dominant phylogenetic group, followed by Bacteroidetes and Firmicutes . A total of 166 genera were commonly shared by all seven sludge samples, including Zoogloea , Dechloromonas , Thauera , Nitrospira , Arcobacter , etc. Besides these shared populations, certain unique bacterial populations were found abundant in individual sludge sample. Canonical correspondence analysis (CCA) indicated that influent COD and pH had the greatest influence on microbial community compositions, whereas dissolved oxygen (DO) exhibited the least influence. 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subjects Activated sludge
Anaerobic conditions
Analysis
Arcobacter
Bacteria
Bacteria - classification
Bacteria - genetics
Bacteria - metabolism
Bacteroidetes - classification
Bacteroidetes - metabolism
Biodegradation, Environmental
Biological Oxygen Demand Analysis
Biomass
Biomedical and Life Sciences
Bioreactors
Biotechnology
Chemical oxygen demand
China
Community composition
Dissolved oxygen
DNA, Bacterial - genetics
Environmental aspects
Environmental Biotechnology
Environmental factors
Firmicutes
Firmicutes - classification
Firmicutes - metabolism
Genetic testing
Hydrogen-Ion Concentration
Industrial wastes
Industrial wastewater
Industrial wastewater treatment
Laboratories
Life Sciences
Management
Metabolism
Microbial activity
Microbial colonies
Microbial Consortia
Microbial Genetics and Genomics
Microbiology
Municipal wastewater
Nitrospira
Phylogenetics
Phylogeny
Proteobacteria
Proteobacteria - classification
Proteobacteria - metabolism
Sequence Analysis, DNA
Sewage - microbiology
Sewage disposal plants
Sludge
Studies
Taxonomy
Thauera
Wastewater treatment plants
Water treatment
Water treatment plants
Zoogloea
title Correlating microbial community compositions with environmental factors in activated sludge from four full-scale municipal wastewater treatment plants in Shanghai, China
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