Simultaneous di-oxygenation and denitrification in an internal circulation baffled bioreactor

Ling Jiang; Yingxia Tang; Weihua Sun; Na Yi; Yongming Zhang; Hanchang Shi; Bruce Rittmann

doi:10.1007/s10532-017-9788-7

Simultaneous di-oxygenation and denitrification in an internal circulation baffled bioreactor

Ling Jiang, Yingxia Tang, Weihua Sun, Na Yi, Yongming Zhang, Hanchang Shi, Bruce Rittmann

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

3 Scopus citations

Abstract

An internal circulation baffled bioreactor was employed to realize simultaneous di-oxygenation of phthalic acid (PA) and denitrification of nitrate, which require aerobic and anoxic conditions, respectively. Adding a small concentration of succinate as an exogenous electron donor stimulated PA di-oxygenation, which produced readily oxidizable downstream products whose oxidation also enhanced denitrification of nitrate; succinate addition also stimulated denitrification. Depending on the concentration of PA, addition of 0.17 mM succinate increased the PA removal rate by 25 and 42%, while the corresponding nitrate removal rate was increased by 73 and 51%. UV/H₂O₂ advanced oxidation of PA had the same effects as adding succinate, since succinate is generated by UV/H₂O₂; this acceleration effect was approximately equivalent to adding 0.17 mM succinate.

Original language	English (US)
Pages (from-to)	195-203
Number of pages	9
Journal	Biodegradation
Volume	28
Issue number	2-3
DOIs	https://doi.org/10.1007/s10532-017-9788-7
State	Published - Jun 1 2017

Keywords

Denitrification
Di-oxygenation
Nitrate
Phthalic acid
Succinate

ASJC Scopus subject areas

Environmental Engineering
Microbiology
Bioengineering
Environmental Chemistry
Pollution

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title = "Simultaneous di-oxygenation and denitrification in an internal circulation baffled bioreactor",

abstract = "An internal circulation baffled bioreactor was employed to realize simultaneous di-oxygenation of phthalic acid (PA) and denitrification of nitrate, which require aerobic and anoxic conditions, respectively. Adding a small concentration of succinate as an exogenous electron donor stimulated PA di-oxygenation, which produced readily oxidizable downstream products whose oxidation also enhanced denitrification of nitrate; succinate addition also stimulated denitrification. Depending on the concentration of PA, addition of 0.17 mM succinate increased the PA removal rate by 25 and 42%, while the corresponding nitrate removal rate was increased by 73 and 51%. UV/H2O2 advanced oxidation of PA had the same effects as adding succinate, since succinate is generated by UV/H2O2; this acceleration effect was approximately equivalent to adding 0.17 mM succinate.",

keywords = "Denitrification, Di-oxygenation, Nitrate, Phthalic acid, Succinate",

author = "Ling Jiang and Yingxia Tang and Weihua Sun and Na Yi and Yongming Zhang and Hanchang Shi and Bruce Rittmann",

note = "Funding Information: The authors acknowledge the financial support of the ability construction project of local Colleges and Universities in Shanghai (16070503000), Special Fund of State Key Joint Laboratory of Environment Simulation and Pollution Control (16K10ESPCT), Shanghai Gaofeng & Gaoyuan Project for University Academic Program Development, and the United States National Science Foundation (0651794). Publisher Copyright: {\textcopyright} 2017, Springer Science+Business Media Dordrecht. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.",

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doi = "10.1007/s10532-017-9788-7",

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AU - Tang, Yingxia

AU - Sun, Weihua

AU - Yi, Na

AU - Zhang, Yongming

AU - Shi, Hanchang

AU - Rittmann, Bruce

N1 - Funding Information: The authors acknowledge the financial support of the ability construction project of local Colleges and Universities in Shanghai (16070503000), Special Fund of State Key Joint Laboratory of Environment Simulation and Pollution Control (16K10ESPCT), Shanghai Gaofeng & Gaoyuan Project for University Academic Program Development, and the United States National Science Foundation (0651794). Publisher Copyright: © 2017, Springer Science+Business Media Dordrecht. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.

PY - 2017/6/1

Y1 - 2017/6/1

N2 - An internal circulation baffled bioreactor was employed to realize simultaneous di-oxygenation of phthalic acid (PA) and denitrification of nitrate, which require aerobic and anoxic conditions, respectively. Adding a small concentration of succinate as an exogenous electron donor stimulated PA di-oxygenation, which produced readily oxidizable downstream products whose oxidation also enhanced denitrification of nitrate; succinate addition also stimulated denitrification. Depending on the concentration of PA, addition of 0.17 mM succinate increased the PA removal rate by 25 and 42%, while the corresponding nitrate removal rate was increased by 73 and 51%. UV/H2O2 advanced oxidation of PA had the same effects as adding succinate, since succinate is generated by UV/H2O2; this acceleration effect was approximately equivalent to adding 0.17 mM succinate.

AB - An internal circulation baffled bioreactor was employed to realize simultaneous di-oxygenation of phthalic acid (PA) and denitrification of nitrate, which require aerobic and anoxic conditions, respectively. Adding a small concentration of succinate as an exogenous electron donor stimulated PA di-oxygenation, which produced readily oxidizable downstream products whose oxidation also enhanced denitrification of nitrate; succinate addition also stimulated denitrification. Depending on the concentration of PA, addition of 0.17 mM succinate increased the PA removal rate by 25 and 42%, while the corresponding nitrate removal rate was increased by 73 and 51%. UV/H2O2 advanced oxidation of PA had the same effects as adding succinate, since succinate is generated by UV/H2O2; this acceleration effect was approximately equivalent to adding 0.17 mM succinate.

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KW - Nitrate

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KW - Succinate

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Simultaneous di-oxygenation and denitrification in an internal circulation baffled bioreactor

Abstract

Keywords

ASJC Scopus subject areas

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