Biotreatment of o-nitrobenzaldehyde manufacturing wastewater and changes in activated sludge flocs in a sequencing batch reactor

Chang Liu; Shinawar Waseem Ali; Li Bo Guan; Fang Bo Yu; Shun Peng Li; Ming Hung WONG

doi:10.1016/j.biortech.2011.11.025

Biotreatment of o-nitrobenzaldehyde manufacturing wastewater and changes in activated sludge flocs in a sequencing batch reactor

Chang Liu, Shinawar Waseem Ali, Li Bo Guan, Fang Bo Yu^*, Shun Peng Li, Ming Hung WONG

^*Corresponding author for this work

Department of Biology

Research output: Contribution to journal › Journal article › peer-review

15 Citations (Scopus)

Abstract

o-Nitrobenzaldehyde manufacturing wastewater is characterized for being highly saline, with its TN content and dissolved organic concentrations giving rise to high COD loads. A sequencing batch reactor was established to investigate the effects of major processing variables, such as SRT and HRT, on system performance. The optimal COD (86%) and TN (40.9%) removal efficiencies were obtained at 16. d (SRT) and 12. h (HRT). Design equations were developed by applying experimental data. Changes in sludge flocs were studied using a combination of methods including: chemical analysis; fluorescence in situ hybridization (FISH); and denaturing gradient gel electrophoresis profile analysis of 16S rRNA genes. Dramatic changes occurred during adaptation and β- Proteobacteria was found to be the most prevalent population. Besides, some species affiliated with α-subclasses of Proteobacteria and Cytophaga-Flavobacterium-Bacteroides (CFB) group were also enriched. This study may help with future research in providing a better understanding of the activated sludge biotreatment.

Original language	English
Pages (from-to)	228-234
Number of pages	7
Journal	Bioresource Technology
Volume	104
DOIs	https://doi.org/10.1016/j.biortech.2011.11.025
Publication status	Published - Jan 2012

Scopus Subject Areas

Bioengineering
Environmental Engineering
Renewable Energy, Sustainability and the Environment
Waste Management and Disposal

User-Defined Keywords

Activated sludge
DGGE
FISH
Microbial community
O-Nitrobenzaldehyde

UN SDGs

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

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10.1016/j.biortech.2011.11.025

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title = "Biotreatment of o-nitrobenzaldehyde manufacturing wastewater and changes in activated sludge flocs in a sequencing batch reactor",

abstract = "o-Nitrobenzaldehyde manufacturing wastewater is characterized for being highly saline, with its TN content and dissolved organic concentrations giving rise to high COD loads. A sequencing batch reactor was established to investigate the effects of major processing variables, such as SRT and HRT, on system performance. The optimal COD (86%) and TN (40.9%) removal efficiencies were obtained at 16. d (SRT) and 12. h (HRT). Design equations were developed by applying experimental data. Changes in sludge flocs were studied using a combination of methods including: chemical analysis; fluorescence in situ hybridization (FISH); and denaturing gradient gel electrophoresis profile analysis of 16S rRNA genes. Dramatic changes occurred during adaptation and β- Proteobacteria was found to be the most prevalent population. Besides, some species affiliated with α-subclasses of Proteobacteria and Cytophaga-Flavobacterium-Bacteroides (CFB) group were also enriched. This study may help with future research in providing a better understanding of the activated sludge biotreatment.",

keywords = "Activated sludge, DGGE, FISH, Microbial community, O-Nitrobenzaldehyde",

author = "Chang Liu and Ali, {Shinawar Waseem} and Guan, {Li Bo} and Yu, {Fang Bo} and Li, {Shun Peng} and WONG, {Ming Hung}",

note = "Funding Information: This work was supported by China National Natural Science Foundation (Grant No. 31100087 ) and two grants (No. Y3100018 and No. 2011C23065 ) from Zhejiang Provincial Government . We are grateful for their financial support. What{\textquoteright}s more, we are very thankful to Mr. Han Hang-Ru for his excellent technical assistance.",

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volume = "104",

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journal = "Bioresource Technology",

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AU - Liu, Chang

AU - Ali, Shinawar Waseem

AU - Guan, Li Bo

AU - Yu, Fang Bo

AU - Li, Shun Peng

AU - WONG, Ming Hung

N1 - Funding Information: This work was supported by China National Natural Science Foundation (Grant No. 31100087 ) and two grants (No. Y3100018 and No. 2011C23065 ) from Zhejiang Provincial Government . We are grateful for their financial support. What’s more, we are very thankful to Mr. Han Hang-Ru for his excellent technical assistance.

PY - 2012/1

Y1 - 2012/1

N2 - o-Nitrobenzaldehyde manufacturing wastewater is characterized for being highly saline, with its TN content and dissolved organic concentrations giving rise to high COD loads. A sequencing batch reactor was established to investigate the effects of major processing variables, such as SRT and HRT, on system performance. The optimal COD (86%) and TN (40.9%) removal efficiencies were obtained at 16. d (SRT) and 12. h (HRT). Design equations were developed by applying experimental data. Changes in sludge flocs were studied using a combination of methods including: chemical analysis; fluorescence in situ hybridization (FISH); and denaturing gradient gel electrophoresis profile analysis of 16S rRNA genes. Dramatic changes occurred during adaptation and β- Proteobacteria was found to be the most prevalent population. Besides, some species affiliated with α-subclasses of Proteobacteria and Cytophaga-Flavobacterium-Bacteroides (CFB) group were also enriched. This study may help with future research in providing a better understanding of the activated sludge biotreatment.

AB - o-Nitrobenzaldehyde manufacturing wastewater is characterized for being highly saline, with its TN content and dissolved organic concentrations giving rise to high COD loads. A sequencing batch reactor was established to investigate the effects of major processing variables, such as SRT and HRT, on system performance. The optimal COD (86%) and TN (40.9%) removal efficiencies were obtained at 16. d (SRT) and 12. h (HRT). Design equations were developed by applying experimental data. Changes in sludge flocs were studied using a combination of methods including: chemical analysis; fluorescence in situ hybridization (FISH); and denaturing gradient gel electrophoresis profile analysis of 16S rRNA genes. Dramatic changes occurred during adaptation and β- Proteobacteria was found to be the most prevalent population. Besides, some species affiliated with α-subclasses of Proteobacteria and Cytophaga-Flavobacterium-Bacteroides (CFB) group were also enriched. This study may help with future research in providing a better understanding of the activated sludge biotreatment.

KW - Activated sludge

KW - DGGE

KW - FISH

KW - Microbial community

KW - O-Nitrobenzaldehyde

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Biotreatment of o-nitrobenzaldehyde manufacturing wastewater and changes in activated sludge flocs in a sequencing batch reactor

Abstract

Scopus Subject Areas

User-Defined Keywords

UN SDGs

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