Performance of an autotrophic denitrification process with mixed electron donors and a functional microbial community

Xianxin Luo; Junfeng Su; Han Liu; Tinglin Huang; Li Wei; Jiawei Nie; Hanyu Gao; Dongpeng Li

doi:10.2166/ws.2018.088

Performance of an autotrophic denitrification process with mixed electron donors and a functional microbial community

Xianxin Luo
, Junfeng Su
, Han Liu
, Tinglin Huang
, Li Wei^*
, Jiawei Nie
, Hanyu Gao
, Dongpeng Li

^*Corresponding author for this work

School of Environment

Nanchang Hangkong University
Xi'an University of Architecture and Technology
Harbin Institute of Technology

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

9 Scopus citations

Abstract

A moving bed biofilm reactor (MBBR) using Mn(II) and Fe(II) as mixed electron donors was designed for nitrate removal. The optimal state, as determined by response surface methodology, was an Fe(II):Mn(II) molar ratio of 0.62, electron donor:electron acceptor molar ratio of 2.62 and hydraulic retention time of 10.88 h. Subsequently, the MBBR was applied to groundwater treatment and demonstrated a final nitrate-N removal efficiency of 99.5% with a nitrite-N accumulation rate of 0.0706 mg-N·L ¹ ·h ¹ . Furthermore, high-throughput sequencing was employed to characterize bacterial communities in the MBBR. Results showed that the genera of Pseudomonas and Acinetobacter may make a contribution to the nitrate removal.

Original language	English
Pages (from-to)	434-443
Number of pages	10
Journal	Water Supply
Volume	19
Issue number	2
DOIs	https://doi.org/10.2166/ws.2018.088
State	Published - Mar 2019

Keywords

Autotrophic denitrification
Microbial community
Mix electron donors
Nitrate

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10.2166/ws.2018.088

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title = "Performance of an autotrophic denitrification process with mixed electron donors and a functional microbial community",

abstract = " A moving bed biofilm reactor (MBBR) using Mn(II) and Fe(II) as mixed electron donors was designed for nitrate removal. The optimal state, as determined by response surface methodology, was an Fe(II):Mn(II) molar ratio of 0.62, electron donor:electron acceptor molar ratio of 2.62 and hydraulic retention time of 10.88 h. Subsequently, the MBBR was applied to groundwater treatment and demonstrated a final nitrate-N removal efficiency of 99.5\% with a nitrite-N accumulation rate of 0.0706 mg-N·L 1 ·h 1 . Furthermore, high-throughput sequencing was employed to characterize bacterial communities in the MBBR. Results showed that the genera of Pseudomonas and Acinetobacter may make a contribution to the nitrate removal.",

keywords = "Autotrophic denitrification, Microbial community, Mix electron donors, Nitrate",

author = "Xianxin Luo and Junfeng Su and Han Liu and Tinglin Huang and Li Wei and Jiawei Nie and Hanyu Gao and Dongpeng Li",

note = "Publisher Copyright: {\textcopyright} IWA Publishing 2019 Water Supply",

year = "2019",

month = mar,

doi = "10.2166/ws.2018.088",

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pages = "434--443",

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T1 - Performance of an autotrophic denitrification process with mixed electron donors and a functional microbial community

AU - Luo, Xianxin

AU - Su, Junfeng

AU - Liu, Han

AU - Huang, Tinglin

AU - Wei, Li

AU - Nie, Jiawei

AU - Gao, Hanyu

AU - Li, Dongpeng

N1 - Publisher Copyright: © IWA Publishing 2019 Water Supply

PY - 2019/3

Y1 - 2019/3

N2 - A moving bed biofilm reactor (MBBR) using Mn(II) and Fe(II) as mixed electron donors was designed for nitrate removal. The optimal state, as determined by response surface methodology, was an Fe(II):Mn(II) molar ratio of 0.62, electron donor:electron acceptor molar ratio of 2.62 and hydraulic retention time of 10.88 h. Subsequently, the MBBR was applied to groundwater treatment and demonstrated a final nitrate-N removal efficiency of 99.5% with a nitrite-N accumulation rate of 0.0706 mg-N·L 1 ·h 1 . Furthermore, high-throughput sequencing was employed to characterize bacterial communities in the MBBR. Results showed that the genera of Pseudomonas and Acinetobacter may make a contribution to the nitrate removal.

AB - A moving bed biofilm reactor (MBBR) using Mn(II) and Fe(II) as mixed electron donors was designed for nitrate removal. The optimal state, as determined by response surface methodology, was an Fe(II):Mn(II) molar ratio of 0.62, electron donor:electron acceptor molar ratio of 2.62 and hydraulic retention time of 10.88 h. Subsequently, the MBBR was applied to groundwater treatment and demonstrated a final nitrate-N removal efficiency of 99.5% with a nitrite-N accumulation rate of 0.0706 mg-N·L 1 ·h 1 . Furthermore, high-throughput sequencing was employed to characterize bacterial communities in the MBBR. Results showed that the genera of Pseudomonas and Acinetobacter may make a contribution to the nitrate removal.

KW - Autotrophic denitrification

KW - Microbial community

KW - Mix electron donors

KW - Nitrate

UR - https://www.scopus.com/pages/publications/85060573805

U2 - 10.2166/ws.2018.088

DO - 10.2166/ws.2018.088

M3 - 文章

AN - SCOPUS:85060573805

SN - 1606-9749

VL - 19

SP - 434

EP - 443

JO - Water Supply

JF - Water Supply

IS - 2

ER -

Performance of an autotrophic denitrification process with mixed electron donors and a functional microbial community

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Keywords

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