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Roles of Phosphorus Sources in Microbial Community Assembly for the Removal of Organic Matters and Ammonia in Activated Sludge

Various phosphorus sources are utilized by microbes in WWTPs, eventually affecting microbial assembly and functions. This study identified the effects of phosphorus source on microbial communities and functions in the activated sludge. By cultivation with 59 phosphorus sources, including inorganic p...

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Autores principales: Zheng, Lei, Ren, Mengli, Xie, En, Ding, Aizhong, Liu, Yan, Deng, Songqiang, Zhang, Dayi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6532738/
https://www.ncbi.nlm.nih.gov/pubmed/31156575
http://dx.doi.org/10.3389/fmicb.2019.01023
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author Zheng, Lei
Ren, Mengli
Xie, En
Ding, Aizhong
Liu, Yan
Deng, Songqiang
Zhang, Dayi
author_facet Zheng, Lei
Ren, Mengli
Xie, En
Ding, Aizhong
Liu, Yan
Deng, Songqiang
Zhang, Dayi
author_sort Zheng, Lei
collection PubMed
description Various phosphorus sources are utilized by microbes in WWTPs, eventually affecting microbial assembly and functions. This study identified the effects of phosphorus source on microbial communities and functions in the activated sludge. By cultivation with 59 phosphorus sources, including inorganic phosphates (IP), nucleoside-monophosphates (NMP), cyclic-nucleoside-monophosphates (cNMP), and other organophosphates (OP), we evaluated the change in removal efficiencies of total organic carbon (TOC) and ammonia, microbial biomass, alkaline phosphatase (AKP) activity, microbial community structure, and AKP-associated genes. TOC and ammonia removal efficiency was highest in IP (64.8%) and cNMP (52.3%) treatments. Microbial community structure changed significantly across phosphorus sources that IP and cNMP encouraged Enterobacter and Aeromonas, respectively. The abundance of phoA and phoU genes was higher in IP treatments, whereas phoD and phoX genes dominated OP treatments. Our findings suggested that the performance of WWTPs was dependent on phosphorus sources and provided new insights into effective WWTP management.
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spelling pubmed-65327382019-05-31 Roles of Phosphorus Sources in Microbial Community Assembly for the Removal of Organic Matters and Ammonia in Activated Sludge Zheng, Lei Ren, Mengli Xie, En Ding, Aizhong Liu, Yan Deng, Songqiang Zhang, Dayi Front Microbiol Microbiology Various phosphorus sources are utilized by microbes in WWTPs, eventually affecting microbial assembly and functions. This study identified the effects of phosphorus source on microbial communities and functions in the activated sludge. By cultivation with 59 phosphorus sources, including inorganic phosphates (IP), nucleoside-monophosphates (NMP), cyclic-nucleoside-monophosphates (cNMP), and other organophosphates (OP), we evaluated the change in removal efficiencies of total organic carbon (TOC) and ammonia, microbial biomass, alkaline phosphatase (AKP) activity, microbial community structure, and AKP-associated genes. TOC and ammonia removal efficiency was highest in IP (64.8%) and cNMP (52.3%) treatments. Microbial community structure changed significantly across phosphorus sources that IP and cNMP encouraged Enterobacter and Aeromonas, respectively. The abundance of phoA and phoU genes was higher in IP treatments, whereas phoD and phoX genes dominated OP treatments. Our findings suggested that the performance of WWTPs was dependent on phosphorus sources and provided new insights into effective WWTP management. Frontiers Media S.A. 2019-05-16 /pmc/articles/PMC6532738/ /pubmed/31156575 http://dx.doi.org/10.3389/fmicb.2019.01023 Text en Copyright © 2019 Zheng, Ren, Xie, Ding, Liu, Deng and Zhang. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Microbiology
Zheng, Lei
Ren, Mengli
Xie, En
Ding, Aizhong
Liu, Yan
Deng, Songqiang
Zhang, Dayi
Roles of Phosphorus Sources in Microbial Community Assembly for the Removal of Organic Matters and Ammonia in Activated Sludge
title Roles of Phosphorus Sources in Microbial Community Assembly for the Removal of Organic Matters and Ammonia in Activated Sludge
title_full Roles of Phosphorus Sources in Microbial Community Assembly for the Removal of Organic Matters and Ammonia in Activated Sludge
title_fullStr Roles of Phosphorus Sources in Microbial Community Assembly for the Removal of Organic Matters and Ammonia in Activated Sludge
title_full_unstemmed Roles of Phosphorus Sources in Microbial Community Assembly for the Removal of Organic Matters and Ammonia in Activated Sludge
title_short Roles of Phosphorus Sources in Microbial Community Assembly for the Removal of Organic Matters and Ammonia in Activated Sludge
title_sort roles of phosphorus sources in microbial community assembly for the removal of organic matters and ammonia in activated sludge
topic Microbiology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6532738/
https://www.ncbi.nlm.nih.gov/pubmed/31156575
http://dx.doi.org/10.3389/fmicb.2019.01023
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