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The effect of different light intensities and light/dark regimes on the performance of photosynthetic microalgae microbial fuel cell

Bazdar, E ; Sharif University of Technology | 2018

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  1. Type of Document: Article
  2. DOI: 10.1016/j.biortech.2018.04.026
  3. Publisher: Elsevier Ltd , 2018
  4. Abstract:
  5. This study develops a photosynthetic microalgae microbial fuel cell (PMMFC) engaged Chlorella vulgaris microalgae to investigate effect of light intensities and illumination regimes on simultaneous production of bioelectricity, biomass and wastewater treatment. The performance of the system under different light intensity (3500, 5000, 7000 and 10,000 lx) and light/dark regimes (24/00, 12/12, 16/8 h) was investigated. The optimum light intensity and light/dark regimes for achieving maximum yield of PMMFC were obtained. The maximum power density of 126 mW m−3, the coulombic efficiency of 78% and COD removal of 5.47% were achieved. The maximum biomass concentration of 4 g l−1 (or biomass yield of 0.44 g l−1 day−1) was obtained in continuous light intensity of 10,000 lx. The comparison of the PMMFC performance with air–cathode and abiotic-cathode MFCs shows that the maximum power density of air-cathode MFC was only 13% higher than PMMFC. © 2018 Elsevier Ltd
  6. Keywords:
  7. Chlorella vulgaris ; Light intensity ; Light/dark regime ; Photosynthesis microalgae microbial fuel cell ; Polarization ; Algae ; Biomass ; Cathodes ; Electrophysiology ; Microorganisms ; Polarization ; Wastewater treatment ; Biomass concentrations ; Continuous light ; Coulombic efficiency ; Investigate effects ; Maximum power density ; Micro-algae ; Microbial fuel cells ; Carbon dioxide ; Dissolved oxygen ; Oxygen ; Biomass power ; Concentration (composition) ; Efficiency measurement ; Fuel cell ; Microalga ; performance assessment ; polarization ; Algal growth ; Article ; Bioenergy ; Biomass production ; Cell membrane potential ; Chemical oxygen demand ; Controlled study ; Current density ; Electrochemistry ; Electron transport ; Growth rate ; Illumination ; Inoculation ; Light dark cycle ; Microbial fuel cell ; Nonhuman ; Oxidation reduction reaction ; Oxygen concentration ; pH ; Priority journal ; Waste water management ; Electrode ; Microalga ; Bioelectric Energy Sources ; Electrodes ; Microalgae ; Photosynthesis
  8. Source: Bioresource Technology ; Volume 261 , 2018 , Pages 350-360 ; 09608524 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/pii/S096085241830539X