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Micro-oxygen bioanode: An efficient strategy for enhancement of phenol degradation and current generation in mix-cultured MFCs.

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Title: Micro-oxygen bioanode: An efficient strategy for enhancement of phenol degradation and current generation in mix-cultured MFCs.
Authors: Yang, Li-Hui1, Zhu, Ting-Ting1, Cai, Wei-Wei1, Haider, Muhammad Rizwan1, Wang, Hong-Cheng1, Cheng, Hao-Yi1, Wang, Ai-Jie1 ajwang@rcees.ac.cn
Source: Bioresource Technology. Nov2018, Vol. 268, p176-182. 7p.
Subjects: Microbial fuel cells, Aromatic amines, Phenol removal (Sewage purification), Sewage purification processes, Bacterial growth
Abstract: Graphical abstract Highlights • The performance was evaluated in R MO (micro-oxygen bioanode MFC). • 6-fold higher phenol removal and 4-fold higher current were achieved in R MO. • Micro-oxygen promoted more biomass production through stimulating bacterial growth. • The enhancement of R MO could be related to metabolites, biomass and microflora. Abstract It is controversial to introduce oxygen into anode chamber as oxygen would decrease the CE (Coulombic efficiency) while it could also enhance the degradation of aromatics in microbial fuel cell (MFCs). Therefore, it is important to balance the pros and cons of oxygen in aromatics driven MFCs. A R MO (micro-oxygen bioanode MFC) was designed to determine the effect of oxygen on electricity output and phenol degradation. The R MO showed 6-fold higher phenol removal efficiency, 4-fold higher current generation than the R AN (anaerobic bioanode MFC) at a cost of 26.9% decline in CE. The Zoogloea and Geobacter , which account for phenol degradation and current generation, respectively, were dominated in the R MO bioanode biofilm. The biomass also showed great difference between R MO and R AN (114.3 ± 14.1 vs. 2.2 ± 0.5 nmol/g). Therefore, different microbial community, higher biomass as well as the different degradation pathway were suggested as reasons for the better performance in R MO. [ABSTRACT FROM AUTHOR]
Copyright of Bioresource Technology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 131849111
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PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Micro-oxygen bioanode: An efficient strategy for enhancement of phenol degradation and current generation in mix-cultured MFCs.
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  Data: <searchLink fieldCode="AR" term="%22Yang%2C+Li-Hui%22">Yang, Li-Hui</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Zhu%2C+Ting-Ting%22">Zhu, Ting-Ting</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Cai%2C+Wei-Wei%22">Cai, Wei-Wei</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Haider%2C+Muhammad+Rizwan%22">Haider, Muhammad Rizwan</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Wang%2C+Hong-Cheng%22">Wang, Hong-Cheng</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Cheng%2C+Hao-Yi%22">Cheng, Hao-Yi</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Wang%2C+Ai-Jie%22">Wang, Ai-Jie</searchLink><relatesTo>1</relatesTo><i> ajwang@rcees.ac.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Bioresource+Technology%22">Bioresource Technology</searchLink>. Nov2018, Vol. 268, p176-182. 7p.
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  Data: <searchLink fieldCode="DE" term="%22Microbial+fuel+cells%22">Microbial fuel cells</searchLink><br /><searchLink fieldCode="DE" term="%22Aromatic+amines%22">Aromatic amines</searchLink><br /><searchLink fieldCode="DE" term="%22Phenol+removal+%28Sewage+purification%29%22">Phenol removal (Sewage purification)</searchLink><br /><searchLink fieldCode="DE" term="%22Sewage+purification+processes%22">Sewage purification processes</searchLink><br /><searchLink fieldCode="DE" term="%22Bacterial+growth%22">Bacterial growth</searchLink>
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  Label: Abstract
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  Data: Graphical abstract Highlights • The performance was evaluated in R MO (micro-oxygen bioanode MFC). • 6-fold higher phenol removal and 4-fold higher current were achieved in R MO. • Micro-oxygen promoted more biomass production through stimulating bacterial growth. • The enhancement of R MO could be related to metabolites, biomass and microflora. Abstract It is controversial to introduce oxygen into anode chamber as oxygen would decrease the CE (Coulombic efficiency) while it could also enhance the degradation of aromatics in microbial fuel cell (MFCs). Therefore, it is important to balance the pros and cons of oxygen in aromatics driven MFCs. A R MO (micro-oxygen bioanode MFC) was designed to determine the effect of oxygen on electricity output and phenol degradation. The R MO showed 6-fold higher phenol removal efficiency, 4-fold higher current generation than the R AN (anaerobic bioanode MFC) at a cost of 26.9% decline in CE. The Zoogloea and Geobacter , which account for phenol degradation and current generation, respectively, were dominated in the R MO bioanode biofilm. The biomass also showed great difference between R MO and R AN (114.3 ± 14.1 vs. 2.2 ± 0.5 nmol/g). Therefore, different microbial community, higher biomass as well as the different degradation pathway were suggested as reasons for the better performance in R MO. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Bioresource Technology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.biortech.2018.07.025
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        Text: English
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      – TitleFull: Micro-oxygen bioanode: An efficient strategy for enhancement of phenol degradation and current generation in mix-cultured MFCs.
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            NameFull: Yang, Li-Hui
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            NameFull: Wang, Hong-Cheng
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              Text: Nov2018
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              Y: 2018
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