microbial fuel cell
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microbial fuel cell Presentation Transcript

  • 1. Let there be light!!
  • 2.
    • --
  • 3. MICROBIAL FUEL CELL Waste water treament and electricity generation
  • 4. DEFINITION: WHAT IS A MICROBIAL FUEL CELL??
    • Battery
    • Conversion of chemical energy into
    • Electrical energy
    • Use microorganisms as a catalyst
  • 5.
    • The microorganisms that have the ability to produce electricity are called :
    • Cellular respiration
    • Final e- acceptor:
    • electrodes in a cell rather than nitrates sulphates iron and oxygen .
    electrogenics MICROELECTRICITY
  • 6.
    • Electrolytic cell
    WHAT IS THE SOURCE OF INSPIRATION
  • 7.  
  • 8. Cellular respiration
    • b.Cellular respiration
  • 9. 3 main components
  • 10. How does it work?
  • 11.  
  • 12.
    • Bacteria form a community
    • on anode called BIOFILM .
    • Biofilm produce a matrix
    • that stick to the anode.
    • Sticky matrix consists of
    • extracellular proteins, sugars,
    • and bacterial cells.
    • tiny conductive nanowires
    • that may help facilitate
    • electron conduction.
    ISSUE:HOW TO STICK BACTERIA TO ANODE?
  • 13. A N O D E and c a t h o d e conductive Chemically stable biocompatible Non corrosive Stainless steel mesh Graphite plates Glassy carbons platinum
  • 14. TYPES OF MFC 1. ANY MICROBE CAN PRODUCE ELECTRICITY WITH AN ELECTRON SHUTTLE (INEFFICIENT) 2.MEDIATORS ARE MOSTLY PHENOLICS WHICH ARE EXPENSIVE & TOXIC 1.NO ADDITIONAL ELECTRON SHUTTLE IS NEEDED 2.FEW KNOWN MICROBES HAVE THIS ABILITY 3.SHEWANELLA AND IRON REDUCERS DO!
  • 15.
    • Geobacteraceae ,
    • Desulfuromonas ,
    • Alcaligenes faecalis ,
    • Enterococcus faecium ,
    • Pseudomonas aeruginosa ,
    • Bacteroides and
    • Aeromonas species were detected in the before-mentioned studies
    • Azoarcus and Azospirillum )
    ISSUE:WHICH MICROORGANISM TO BE USED?
  • 16. APPLICATIONS AND USES
    • scale up
    • scale down
    mfc Waste disposal Water treatment biosensors teaching Medical devices Remote power supplies
  • 17. ADVANTAGES
    • LOW COST LOW MAINTENANCE
    • ZERO POLLUTION SUSTAINABLE
    • POWER
    • VASTLY AVAILABLE USE WIDE RANGE OF
    • fuels
  • 18. WASTEWATER TREATMENT
    • We don’t spend a lot of time pondering wastewater treament unless we absolutely have to!!
    • 2 billion people are without access to adequate sanitation or safe drinking water.
    • These challenges demand for innovative solution
    • This is where microbial fuel cell comes in…
  • 19.  
  • 20.  
  • 21. Various mfc designs in use
    • The designs can be divided in two types:
    • 1) Research type MFCs :
  • 22. Continuous mfc
  • 23.
    • Scale up is still a big challenge
    • High cost of cation exchange membranes
    • Potential for biofouling
    • High internal resistance the power generation and limit the practical applications of mfc’c
    NEGATIVE SIDE OF THE PICTURE
  • 24. CONCLUSION
    • With the world’s attention focused on
    • global warming and depleting Natural
    • resources, demand for green energy
    • booming!!
    • Mfc is an excellent source of bioenergy,that is energy from micro organisms.
    • It is a promising solution for energy crisis because it is cheaper, cleaner and sustainable and can use variety of substrate/waste as a fuel
    • Since It is a novel technology,it still needs a lot of working and recognition to be applied on large scale all over the world.