Enhanced bio-decolorization of acid orange 7 and electricity generation in microbial fuel cells with superabsorbent-containing membrane and laccase-based bio-cathode

Chi Yung Lai, Shu Hui Liu, Guan Ping Wu, Chi Wen Lin

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

This study investigates the decolorization of the azo dye Acid Orange 7 (AO7) and the simultaneous generation of electricity in air-cathode microbial fuel cells (AC-MFCs) with a fungal bio-cathode. The laccase-producing white-rot fungus Ganoderma lucidum BCRC 36123 that was seeded on wood-chips around the cathode of the AC-MFCs functioned synergistically with an anaerobic microbial consortium in the anode chamber to degrade AO7. Superabsorbent polymer (SAP) was mixed with polyvinyl alcohol (PVA) to form a polymer electrolyte membrane (PEM) that separated the cathode from the anolyte of the AC-MFC to provide high proton transfer rate and water retention capacity, promoting the decolorization of AO7 and electricity generation. The solid-state cultivation of Ganoderma lucidum yielded 17.3 times more laccase than did the liquid-state cultivation of the same fungus. A maximal open-circuit voltage of 699 mV and a 96.7% decolorization of AO7 at 500 mg/L were achieved in AC-MFCs that were equipped with a PEM with an optimal PVA/SAP ratio of 1:2. A maximal power density of 207.74 mW/m2, which was 10–15 times those obtained in similar studies in the literature, was obtained at an AO7 concentration of 500 mg/L. Over 84% of the by-products of AO7 decolorization were further degraded in the AC-MFC during a 30 day test period. This study reveals the feasibility of using both the improved PEM and a white-rot fungus in a solid-state culture on the cathode to increase considerably the pollutant removal efficiency of MFCs and the amount of electricity they generate.

Original languageEnglish
Pages (from-to)381-386
Number of pages6
JournalJournal of Cleaner Production
Volume166
DOIs
Publication statusPublished - 2017 Nov 10

Fingerprint

Microbial fuel cells
electricity generation
fuel cell
Cathodes
Electricity
membrane
Membranes
polymer
Acids
acid
electrolyte
air
fungus
Fungi
Polymers
alcohol
Air
electricity
Polyvinyl alcohols
Electrolytes

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Environmental Science(all)
  • Strategy and Management
  • Industrial and Manufacturing Engineering

Cite this

@article{65f43e35ba17440d84f80de2ea9bd391,
title = "Enhanced bio-decolorization of acid orange 7 and electricity generation in microbial fuel cells with superabsorbent-containing membrane and laccase-based bio-cathode",
abstract = "This study investigates the decolorization of the azo dye Acid Orange 7 (AO7) and the simultaneous generation of electricity in air-cathode microbial fuel cells (AC-MFCs) with a fungal bio-cathode. The laccase-producing white-rot fungus Ganoderma lucidum BCRC 36123 that was seeded on wood-chips around the cathode of the AC-MFCs functioned synergistically with an anaerobic microbial consortium in the anode chamber to degrade AO7. Superabsorbent polymer (SAP) was mixed with polyvinyl alcohol (PVA) to form a polymer electrolyte membrane (PEM) that separated the cathode from the anolyte of the AC-MFC to provide high proton transfer rate and water retention capacity, promoting the decolorization of AO7 and electricity generation. The solid-state cultivation of Ganoderma lucidum yielded 17.3 times more laccase than did the liquid-state cultivation of the same fungus. A maximal open-circuit voltage of 699 mV and a 96.7{\%} decolorization of AO7 at 500 mg/L were achieved in AC-MFCs that were equipped with a PEM with an optimal PVA/SAP ratio of 1:2. A maximal power density of 207.74 mW/m2, which was 10–15 times those obtained in similar studies in the literature, was obtained at an AO7 concentration of 500 mg/L. Over 84{\%} of the by-products of AO7 decolorization were further degraded in the AC-MFC during a 30 day test period. This study reveals the feasibility of using both the improved PEM and a white-rot fungus in a solid-state culture on the cathode to increase considerably the pollutant removal efficiency of MFCs and the amount of electricity they generate.",
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Enhanced bio-decolorization of acid orange 7 and electricity generation in microbial fuel cells with superabsorbent-containing membrane and laccase-based bio-cathode. / Lai, Chi Yung; Liu, Shu Hui; Wu, Guan Ping; Lin, Chi Wen.

In: Journal of Cleaner Production, Vol. 166, 10.11.2017, p. 381-386.

Research output: Contribution to journalArticle

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T1 - Enhanced bio-decolorization of acid orange 7 and electricity generation in microbial fuel cells with superabsorbent-containing membrane and laccase-based bio-cathode

AU - Lai, Chi Yung

AU - Liu, Shu Hui

AU - Wu, Guan Ping

AU - Lin, Chi Wen

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N2 - This study investigates the decolorization of the azo dye Acid Orange 7 (AO7) and the simultaneous generation of electricity in air-cathode microbial fuel cells (AC-MFCs) with a fungal bio-cathode. The laccase-producing white-rot fungus Ganoderma lucidum BCRC 36123 that was seeded on wood-chips around the cathode of the AC-MFCs functioned synergistically with an anaerobic microbial consortium in the anode chamber to degrade AO7. Superabsorbent polymer (SAP) was mixed with polyvinyl alcohol (PVA) to form a polymer electrolyte membrane (PEM) that separated the cathode from the anolyte of the AC-MFC to provide high proton transfer rate and water retention capacity, promoting the decolorization of AO7 and electricity generation. The solid-state cultivation of Ganoderma lucidum yielded 17.3 times more laccase than did the liquid-state cultivation of the same fungus. A maximal open-circuit voltage of 699 mV and a 96.7% decolorization of AO7 at 500 mg/L were achieved in AC-MFCs that were equipped with a PEM with an optimal PVA/SAP ratio of 1:2. A maximal power density of 207.74 mW/m2, which was 10–15 times those obtained in similar studies in the literature, was obtained at an AO7 concentration of 500 mg/L. Over 84% of the by-products of AO7 decolorization were further degraded in the AC-MFC during a 30 day test period. This study reveals the feasibility of using both the improved PEM and a white-rot fungus in a solid-state culture on the cathode to increase considerably the pollutant removal efficiency of MFCs and the amount of electricity they generate.

AB - This study investigates the decolorization of the azo dye Acid Orange 7 (AO7) and the simultaneous generation of electricity in air-cathode microbial fuel cells (AC-MFCs) with a fungal bio-cathode. The laccase-producing white-rot fungus Ganoderma lucidum BCRC 36123 that was seeded on wood-chips around the cathode of the AC-MFCs functioned synergistically with an anaerobic microbial consortium in the anode chamber to degrade AO7. Superabsorbent polymer (SAP) was mixed with polyvinyl alcohol (PVA) to form a polymer electrolyte membrane (PEM) that separated the cathode from the anolyte of the AC-MFC to provide high proton transfer rate and water retention capacity, promoting the decolorization of AO7 and electricity generation. The solid-state cultivation of Ganoderma lucidum yielded 17.3 times more laccase than did the liquid-state cultivation of the same fungus. A maximal open-circuit voltage of 699 mV and a 96.7% decolorization of AO7 at 500 mg/L were achieved in AC-MFCs that were equipped with a PEM with an optimal PVA/SAP ratio of 1:2. A maximal power density of 207.74 mW/m2, which was 10–15 times those obtained in similar studies in the literature, was obtained at an AO7 concentration of 500 mg/L. Over 84% of the by-products of AO7 decolorization were further degraded in the AC-MFC during a 30 day test period. This study reveals the feasibility of using both the improved PEM and a white-rot fungus in a solid-state culture on the cathode to increase considerably the pollutant removal efficiency of MFCs and the amount of electricity they generate.

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