Effect of hydraulic retention time on microbial community structure in wastewater treatment electro-bioreactors

Nancy A. ElNaker; Ahmed F. Yousef; Shadi W. Hasan

doi:10.1002/mbo3.590

Effect of hydraulic retention time on microbial community structure in wastewater treatment electro-bioreactors

Nancy A. ElNaker, Ahmed F. Yousef, Shadi W. Hasan

Ain Shams University

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Abstract

The impact of hydraulic retention time (HRT) on the performance and microbial community structure of control and electro-bioreactors was investigated. Control bioreactors and electro-bioreactors were operated at HRT ranging between 6 and 75 hr. The total bacterial counts in addition to the removal efficiency of NH₄ ⁺–N, sCOD, and PO₄ ³⁻–P was assessed in all the reactors tested. In addition, Illumina sequencing was performed to determine the microbial communities that developed in these reactors under each HRT condition. Phylogenetic analysis showed that Proteobacteria and Bacteroidetes were the dominant phyla in those reactors. In addition, Nitrospira sp. and Pseudomonas sp. were found to be present in electro-bioreactors with higher relative abundance than in control bioreactors. The results presented here are the first to determine what different microbial communities in wastewater electro-bioreactors due to the application of an electric current under different HRTs.

Original language	British English
Article number	e00590
Journal	MicrobiologyOpen
Volume	7
Issue number	4
DOIs	https://doi.org/10.1002/mbo3.590
State	Published - Aug 2018

Keywords

DNA sequencing
electric field
hydraulic retention time
microbial community
Wastewater

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/mbo3.590

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title = "Effect of hydraulic retention time on microbial community structure in wastewater treatment electro-bioreactors",

abstract = "The impact of hydraulic retention time (HRT) on the performance and microbial community structure of control and electro-bioreactors was investigated. Control bioreactors and electro-bioreactors were operated at HRT ranging between 6 and 75 hr. The total bacterial counts in addition to the removal efficiency of NH4 +–N, sCOD, and PO4 3−–P was assessed in all the reactors tested. In addition, Illumina sequencing was performed to determine the microbial communities that developed in these reactors under each HRT condition. Phylogenetic analysis showed that Proteobacteria and Bacteroidetes were the dominant phyla in those reactors. In addition, Nitrospira sp. and Pseudomonas sp. were found to be present in electro-bioreactors with higher relative abundance than in control bioreactors. The results presented here are the first to determine what different microbial communities in wastewater electro-bioreactors due to the application of an electric current under different HRTs.",

keywords = "DNA sequencing, electric field, hydraulic retention time, microbial community, Wastewater",

author = "ElNaker, {Nancy A.} and Yousef, {Ahmed F.} and Hasan, {Shadi W.}",

note = "Funding Information: The authors thank Masdar Institute of Science and Technology for their financial support (Grant No. 13KAMA2). Also, authors are thankful to the team of Masdar City{\textquoteright}s MBR plant for supplying us with sludge samples that were used in this study. Publisher Copyright: {\textcopyright} 2018 The Authors. MicrobiologyOpen published by John Wiley & Sons Ltd.",

year = "2018",

month = aug,

doi = "10.1002/mbo3.590",

language = "British English",

volume = "7",

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AU - ElNaker, Nancy A.

AU - Yousef, Ahmed F.

AU - Hasan, Shadi W.

N1 - Funding Information: The authors thank Masdar Institute of Science and Technology for their financial support (Grant No. 13KAMA2). Also, authors are thankful to the team of Masdar City’s MBR plant for supplying us with sludge samples that were used in this study. Publisher Copyright: © 2018 The Authors. MicrobiologyOpen published by John Wiley & Sons Ltd.

PY - 2018/8

Y1 - 2018/8

N2 - The impact of hydraulic retention time (HRT) on the performance and microbial community structure of control and electro-bioreactors was investigated. Control bioreactors and electro-bioreactors were operated at HRT ranging between 6 and 75 hr. The total bacterial counts in addition to the removal efficiency of NH4 +–N, sCOD, and PO4 3−–P was assessed in all the reactors tested. In addition, Illumina sequencing was performed to determine the microbial communities that developed in these reactors under each HRT condition. Phylogenetic analysis showed that Proteobacteria and Bacteroidetes were the dominant phyla in those reactors. In addition, Nitrospira sp. and Pseudomonas sp. were found to be present in electro-bioreactors with higher relative abundance than in control bioreactors. The results presented here are the first to determine what different microbial communities in wastewater electro-bioreactors due to the application of an electric current under different HRTs.

AB - The impact of hydraulic retention time (HRT) on the performance and microbial community structure of control and electro-bioreactors was investigated. Control bioreactors and electro-bioreactors were operated at HRT ranging between 6 and 75 hr. The total bacterial counts in addition to the removal efficiency of NH4 +–N, sCOD, and PO4 3−–P was assessed in all the reactors tested. In addition, Illumina sequencing was performed to determine the microbial communities that developed in these reactors under each HRT condition. Phylogenetic analysis showed that Proteobacteria and Bacteroidetes were the dominant phyla in those reactors. In addition, Nitrospira sp. and Pseudomonas sp. were found to be present in electro-bioreactors with higher relative abundance than in control bioreactors. The results presented here are the first to determine what different microbial communities in wastewater electro-bioreactors due to the application of an electric current under different HRTs.

KW - DNA sequencing

KW - electric field

KW - hydraulic retention time

KW - microbial community

KW - Wastewater

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DO - 10.1002/mbo3.590

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AN - SCOPUS:85044315519

SN - 2045-8827

VL - 7

JO - MicrobiologyOpen

JF - MicrobiologyOpen

IS - 4

M1 - e00590

ER -

Effect of hydraulic retention time on microbial community structure in wastewater treatment electro-bioreactors

Abstract

Keywords

UN SDGs

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