Enhancing denitrifying sulfide removal with functional strains under micro-aerobic condition

Chuan Chen; Aijie Wang; Nanqi Ren; Qingliang Zhao; Lihong Liu; Sunil S. Adav; Duu-Jong Lee; Jo-Shu Chang

doi:10.1016/j.procbio.2010.02.013

Enhancing denitrifying sulfide removal with functional strains under micro-aerobic condition

Chuan Chen, Aijie Wang, Nanqi Ren, Qingliang Zhao, Lihong Liu, Sunil S. Adav, Duu-Jong Lee, Jo-Shu Chang

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

35 Citations (Scopus)

Abstract

The biological denitrifying sulfide reaction (DSR) frequently proceeds in anaerobic environments since excess oxygen inhibits the activity of the denitrifiers. This study isolated a consortium H7, comprising two strains, Penibacillus sp. and Aneurinibacillus aneurinilyticus. It indicated that the DSR performance with the H7 in a mixotrophic medium is significantly enhanced at high sulfide concentrations. The H7 was inhibited by adding >200 mg l^-1 of S^2- under anaerobic conditions. However, when 280 mg^-1 of S^2- was added, H7 could still degrade some of the sulfide, nitrate and acetate under micro-aerobic conditions. Micro-aerobic conditions stimulated the activity of sulfide oxidase and increased the removal rate of highly concentrated sulfide, reducing the inhibition of sulfide on denitrifiers and improving DSR performance. © 2010 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	1007-1010
Journal	Process Biochemistry
Volume	45
Issue number	6
DOIs	https://doi.org/10.1016/j.procbio.2010.02.013
Publication status	Published - Jun 2010
Externally published	Yes

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Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

Denitrifying sulfide removal
Inhibition
Micro-aerobic
Sulfide oxidase

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abstract = "The biological denitrifying sulfide reaction (DSR) frequently proceeds in anaerobic environments since excess oxygen inhibits the activity of the denitrifiers. This study isolated a consortium H7, comprising two strains, Penibacillus sp. and Aneurinibacillus aneurinilyticus. It indicated that the DSR performance with the H7 in a mixotrophic medium is significantly enhanced at high sulfide concentrations. The H7 was inhibited by adding >200 mg l-1 of S2- under anaerobic conditions. However, when 280 mg -1 of S2- was added, H7 could still degrade some of the sulfide, nitrate and acetate under micro-aerobic conditions. Micro-aerobic conditions stimulated the activity of sulfide oxidase and increased the removal rate of highly concentrated sulfide, reducing the inhibition of sulfide on denitrifiers and improving DSR performance. {\textcopyright} 2010 Elsevier Ltd. All rights reserved.",

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T1 - Enhancing denitrifying sulfide removal with functional strains under micro-aerobic condition

AU - Chen, Chuan

AU - Wang, Aijie

AU - Ren, Nanqi

AU - Zhao, Qingliang

AU - Liu, Lihong

AU - Adav, Sunil S.

AU - Lee, Duu-Jong

AU - Chang, Jo-Shu

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

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N2 - The biological denitrifying sulfide reaction (DSR) frequently proceeds in anaerobic environments since excess oxygen inhibits the activity of the denitrifiers. This study isolated a consortium H7, comprising two strains, Penibacillus sp. and Aneurinibacillus aneurinilyticus. It indicated that the DSR performance with the H7 in a mixotrophic medium is significantly enhanced at high sulfide concentrations. The H7 was inhibited by adding >200 mg l-1 of S2- under anaerobic conditions. However, when 280 mg -1 of S2- was added, H7 could still degrade some of the sulfide, nitrate and acetate under micro-aerobic conditions. Micro-aerobic conditions stimulated the activity of sulfide oxidase and increased the removal rate of highly concentrated sulfide, reducing the inhibition of sulfide on denitrifiers and improving DSR performance. © 2010 Elsevier Ltd. All rights reserved.

AB - The biological denitrifying sulfide reaction (DSR) frequently proceeds in anaerobic environments since excess oxygen inhibits the activity of the denitrifiers. This study isolated a consortium H7, comprising two strains, Penibacillus sp. and Aneurinibacillus aneurinilyticus. It indicated that the DSR performance with the H7 in a mixotrophic medium is significantly enhanced at high sulfide concentrations. The H7 was inhibited by adding >200 mg l-1 of S2- under anaerobic conditions. However, when 280 mg -1 of S2- was added, H7 could still degrade some of the sulfide, nitrate and acetate under micro-aerobic conditions. Micro-aerobic conditions stimulated the activity of sulfide oxidase and increased the removal rate of highly concentrated sulfide, reducing the inhibition of sulfide on denitrifiers and improving DSR performance. © 2010 Elsevier Ltd. All rights reserved.

KW - Denitrifying sulfide removal

KW - Inhibition

KW - Micro-aerobic

KW - Sulfide oxidase

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DO - 10.1016/j.procbio.2010.02.013

M3 - RGC 21 - Publication in refereed journal

SN - 1359-5113

VL - 45

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JO - Process Biochemistry

JF - Process Biochemistry

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ER -

Enhancing denitrifying sulfide removal with functional strains under micro-aerobic condition

Abstract

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