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This study developed a novel multi-electrode microbial fuel cell using termite-associated yeast G. reessii, achieving 98.15% malachite green removal within 1 day. The system also generated bio-electricity with notable electrical properties. The results demonstrate potential for treating high-concentration malachite green contaminated wastewater while producing energy.

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What they did

System
MFC

What worked

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Abstract

Aim of the study: This study aims to develop the novel model of multi-electrode MFC with the termite-associated yeast G. reessii for MG decelorization and electricity generation. Material and methods: The termite-associated yeast G. reessii was inoculated into modified midia with 150 mg/L MG. The laccase activity and MG removal was studied. Then, the G. reessii was immobilized on anode surface. The electrical properties and color removal were tested. Results and conclusions: The results showed it successfully removed the MG with 98.15±0.92% within 1 day of operation. Moreover, the OCV, CD and PD of 550.00±10.00%, 3.90±0.10 A/m³ and 1.52±0.08 W/m³ were achieved. Therefore, the system could have the potential for treatment of high concentration MG contaminated wastewater and produce a bio-electric energy.

Key findings

  • 98.15% malachite green removal within 1 day
  • Open Circuit Voltage (OCV) of 550.00±10.00 mV
  • Current Density (CD) of 3.90±0.10 A/m³ and Power Density (PD) of 1.52±0.08 W/m³

Keywords

Microbial fuel cellMalachite greenAnodeElectrodePulp and paper industryYeast

Identifiers

DOI
10.15576/asp.fc/2021.20.1.69
Journal
Acta Scientiarum Polonorum-Formatio Circumiectus
Year
2020