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Microbial fuel cells (MFCs) can efficiently degrade greenery waste and produce electricity, offering a solution for agricultural waste management in low-income countries like Nepal.

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Representative MFC — matched on the paper’s system type only, not its reactor or geometry.

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What they did

System
MFC

What worked

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Abstract

Microbial fuel cells (MFCs) are devices that can use microbial metabolism to degrade greenary waste from a wide range organic substrates. Alternatively, they produce electricity from microbial metabolism. Agricultural waste is a great problem in the low income country like Nepal. There are different techniques which is used for agriculture waste management. However, these techniques are time consuming and costly. Use of an efficiently designed microbial fuel cell is beneficial for proper management of organic waste of different composition. If there is production of value added products like electricity, will be the additional benefit. A significant amount of reduction in chemical oxygen demand (COD) was observed using MFC when 35% diluted solid greenery waste was used. Further, a maximum open circuit voltage of 222.7 mV was observed when MFC was operated with graphite felt electrode in anode. Vast enhancement in open circuit voltage was found when graphite felt electrode was coated with multiwalled carbon nano tubules/ polyaniline (MWCNT/PANI) was used as anode. Keyword: Microbial Fuel cell (MFC); cathode; graphite felt; Chemical Oxygen Demand (COD). References Rabaey, K., & Verstraete, W. (2005). Microbial fuel cells: Novel biotechnology for energy generation. Trends in Biotechnology , 23 (6) : 291–298. Hy Chiu, Ty Pai, MH Liu, CA Chang, FC Lo, TC Chang, HM Lo, CF Chiang, KP Chao, WY Lo, SW Lo and YL Chu (2016). Electricity Production from Municipal Solid Waste using Microbial Fuel Cells. Waste Management and Research. Pp 1-11.

Key findings

  • A significant amount of reduction in chemical oxygen demand (COD) was observed using MFC with 35% diluted solid greenery waste.
  • A maximum open circuit voltage of 222.7 mV was observed when MFC was operated with graphite felt electrode in anode.
  • Vast enhancement in open circuit voltage was found when graphite felt electrode was coated with multiwalled carbon nano tubules/polynanine (MWCNT/PANI) was used as anode.

Keywords

Microbial fuel cellChemical oxygen demandPulp and paper industryAnodeWaste managementBiochemical oxygen demand

Identifiers

DOI
10.1149/ma2019-04/8/414
Journal
ECS Meeting Abstracts
Year
2019