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This paper explores the production of bioelectricity using microalgae-microbial fuel cell technology, demonstrating its potential to convert chemical energy into electrical energy.

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What they did

System
MFC
Substrate
real wastewater

What worked

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Abstract

Microbial fuel cell is an ecological innovative technology producing bioelectricity by utilizing microbes activity. Substituent energy is produced by changing the chemical energy to electrical energy through the catalytic reaction of microorganism. The research aims to find out the potency of bioelectricity produced by microalgae microbial fuel cell technology by utilizing the combination of tapioca wastewater and microalgae cultivation. This research is conducted through the ingredients preparation stage – microalgae culture, wastewater characterization, membrane and graphite activation, and the providing of other supporting equipment. The next stage is the MMFC arrangement, while the last one is bioelectricity measurement. The result of optimal bioelectricity production on the comparison of electrode 2 : 2, the power density is 44,33 mW/m 2 on day 6, meanwhile, on that of 1 : 1, 20,18 mW/m 2 power density on day 1 is obtained. It shows that bioelectricity can be produced from the combination of tapioca wastewater and microalgae culture through the microalgae-microbial fuel cell (MMFC) technology.This research is expected to be a reference for the next research particularly the one that observes the utilizing of microalgae as the part of new and renewable energy sources.

Key findings

  • The power density of bioelectricity produced by MMFC technology was 44.33 mW/m² on day 6 with an electrode ratio of 2:2.
  • The power density of bioelectricity produced by MMFC technology was 20.18 mW/m² on day 1 with an electrode ratio of 1:1.
  • Bioelectricity can be produced from the combination of tapioca wastewater and microalgae culture through MMFC technology.

Keywords

Microbial fuel cellRenewable energyWastewaterBiochemical engineeringChemical energyFuel cells

Identifiers

DOI
10.1051/matecconf/201815601017
Journal
MATEC Web of Conferences
Year
2017