By Aman Anand
Electrical & Electronics Engineering, DSCE
8thsem
 --
23-2-2016
Composed by : Aman Anand 4
1) Perquisites
a) Electrochemical cell
b) Fuel cells
2) Microbial Fuel cell (MFC)
a) Definition, meaning & Principle
b) Ba...
23-02-2016Composed by : Aman Anand 6
23-02-2016Composed by : Aman Anand 7
A simple voltaic cell
“ A fuel cell is a device that converts the chemical energy
from a fuel into electricity through a chemical reaction with
...
23-02-2016Composed by : Aman Anand 9
23-02-2016Composed by : Aman Anand 10
23-02-2016Composed by : Aman Anand 11
 MFCs are still taking baby steps.
 If Fuel cells are new technology for us then MFCs are
newest.
 A very few people ar...
“ A microbial fuel cell is a device that converts
chemical energy to electrical energy by the catalytic
reaction of microo...
“ A microbial fuel cell (MFC) or biological fuel cell is
a bio-electrochemical system that drives a current by
mimicking b...
“ MFCs are bioelectrical devices that harness the natural
metabolisms of microbes to produce electrical power directly fro...
23-02-2016Composed by : Aman Anand 16
Fuel
Microbial
Fuel Cell
Energy
Glucose
(Organic material)
23-02-2016Composed by : Aman Anand 17
Oxygen
Poor
Oxygen
Rich
 Uses bioelectrochemically active bacteria
to transfer electrons to electrode.
 They have electrochemically active redox...
23-02-2016Composed by : Aman Anand
 Geobacteraceae
 Desulfuromonas
 Alcaligenes faecalis
 Enterococcus faecium
 Pseudomonas aeruginosa
 Bacteroides and...
23-2-2016Composed by : Aman Anand 22
 Bacteria form a community
on anode called BIOFILM.
 Biofilm produce a matrix
that stick to the anode.
 Sticky matrix c...
 Anodic Reaction (Oxidation)
◦ EX-1 : CH3COO - + 2H2O 2CO2 + 7H+ + 8e-
(Acetic acid ion)
◦ EX-2 : C6H12O6 + 6H2O 6CO2 + 2...
 Various things like glucose, acetate etc.
 Can be Obtained from Wastewater & solid waste
especially domestic like tea, ...
23-02-2016Composed by : Aman Anand 26
23-02-2016Composed by : Aman Anand 27
23-02-2016Composed by : Aman Anand 28
23-02-2016Composed by : Aman Anand 29
23-02-2016Composed by : Aman Anand 30
 Treatment of Wastewater & solid wastes
◦ BOD removal
 Electrical Power Generation
 Bio-hydrogen
23-02-2016Composed by ...
23-02-2016Composed by : Aman Anand 32
 Wider variety of applications over conventional fuel
cells.
 Can be used to solve Environmental Problems
 Wastewater t...
 Limit on surface area of anode as bacteria can clog
small pores and hence limit on current.
 Still not economically com...
23-02-2016Composed by : Aman Anand 35
 We have presented a very simple miniature
air-cathode MFC design that we have used to
evaluate the use of tea as alterna...
 IEEE Paper-IEEE International Conference on Nanotechnology July 27-30,
2015, Rome, Italy
 B. E. Logan, B. Hamelers, R. ...
“Love your Environment”,
only way to save it
23-02-2016Composed by : Aman Anand 38
23-02-2016Composed by : Aman Anand 39
ANY Queries ??
30
Nano Watt fueling from Microbial fuel Cell using Black tea waste
Nano Watt fueling from Microbial fuel Cell using Black tea waste
of 40

Nano Watt fueling from Microbial fuel Cell using Black tea waste

The presentation explains the working of microbial fuel cells and also explains why tea should be used to generate electricity in a eco-friendly way.
Published on: Mar 3, 2016
Published in: Technology      
Source: www.slideshare.net


Transcripts - Nano Watt fueling from Microbial fuel Cell using Black tea waste

  • 1. By Aman Anand Electrical & Electronics Engineering, DSCE 8thsem
  • 2.  --
  • 3. 23-2-2016 Composed by : Aman Anand 4
  • 4. 1) Perquisites a) Electrochemical cell b) Fuel cells 2) Microbial Fuel cell (MFC) a) Definition, meaning & Principle b) Basic Design c) Components & Working 3) Types of MFC 4) Applications of MFC 5) Advantages & limitations 6) Future & facts 23-02-2016Composed by : Aman Anand 5
  • 5. 23-02-2016Composed by : Aman Anand 6
  • 6. 23-02-2016Composed by : Aman Anand 7 A simple voltaic cell
  • 7. “ A fuel cell is a device that converts the chemical energy from a fuel into electricity through a chemical reaction with oxygen or another oxidizing agent ” 23-02-2016Composed by : Aman Anand 8 Fuel Fuel cell Energy
  • 8. 23-02-2016Composed by : Aman Anand 9
  • 9. 23-02-2016Composed by : Aman Anand 10
  • 10. 23-02-2016Composed by : Aman Anand 11
  • 11.  MFCs are still taking baby steps.  If Fuel cells are new technology for us then MFCs are newest.  A very few people are working on it.  Knowledge of Microbiology, Electricity, Biochemistry, Material science, Environmental Engineering, etc. required to understand & improve this technology. 23-02-2016Composed by : Aman Anand 12
  • 12. “ A microbial fuel cell is a device that converts chemical energy to electrical energy by the catalytic reaction of microorganisms. ” 23-02-2016Composed by : Aman Anand 13
  • 13. “ A microbial fuel cell (MFC) or biological fuel cell is a bio-electrochemical system that drives a current by mimicking bacterial interactions found in nature. ” 23-02-2016Composed by : Aman Anand 14
  • 14. “ MFCs are bioelectrical devices that harness the natural metabolisms of microbes to produce electrical power directly from organic material. ” 23-02-2016Composed by : Aman Anand 15 Why we eat food ? To produce energy , gain vitamin , protein etc. This is our metabolism Microbes exactly do the same, they eat organic material then produce energy for themselves. This is the metabolism of microbe. But some of microbes (bacteria) liberate electrons during their metabolic activity.
  • 15. 23-02-2016Composed by : Aman Anand 16 Fuel Microbial Fuel Cell Energy Glucose (Organic material)
  • 16. 23-02-2016Composed by : Aman Anand 17 Oxygen Poor Oxygen Rich
  • 17.  Uses bioelectrochemically active bacteria to transfer electrons to electrode.  They have electrochemically active redox enzymes like cytochromes on outer membrane that helps in electron transfer.  Form a biofilm on the anode surface & transfer electrons directly by conductance to anode.  Shewanella Putrefaciens & Aeromonas Hydrophila are some examples of bioelectrochemically active bacteria used. Performance Enhancement of MFC
  • 18. 23-02-2016Composed by : Aman Anand
  • 19.  Geobacteraceae  Desulfuromonas  Alcaligenes faecalis  Enterococcus faecium  Pseudomonas aeruginosa  Bacteroides and  Aeromonas species were detected in the before-mentioned studies 23-02-2016Composed by : Aman Anand ISSUE:WHICH MICROORGANISM TO BE USED?
  • 20. 23-2-2016Composed by : Aman Anand 22
  • 21.  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. 23-02-2016Composed by : Aman Anand ISSUE:HOW TO STICK BACTERIA TO ANODE?
  • 22.  Anodic Reaction (Oxidation) ◦ EX-1 : CH3COO - + 2H2O 2CO2 + 7H+ + 8e- (Acetic acid ion) ◦ EX-2 : C6H12O6 + 6H2O 6CO2 + 24H+ + 24e- (glucose)  Cathodic Reaction (Reduction) ◦ EX-1 : O2 + 4H+ + 4e- 2H2O ◦ EX-2 : 6O2 + 24H+ + 24e- 12H2O Tea structure 23-02-2016Composed by : Aman Anand 24
  • 23.  Various things like glucose, acetate etc.  Can be Obtained from Wastewater & solid waste especially domestic like tea, food particles and other wastes . 23-02-2016Composed by : Aman Anand 25
  • 24. 23-02-2016Composed by : Aman Anand 26
  • 25. 23-02-2016Composed by : Aman Anand 27
  • 26. 23-02-2016Composed by : Aman Anand 28
  • 27. 23-02-2016Composed by : Aman Anand 29
  • 28. 23-02-2016Composed by : Aman Anand 30
  • 29.  Treatment of Wastewater & solid wastes ◦ BOD removal  Electrical Power Generation  Bio-hydrogen 23-02-2016Composed by : Aman Anand 31
  • 30. 23-02-2016Composed by : Aman Anand 32
  • 31.  Wider variety of applications over conventional fuel cells.  Can be used to solve Environmental Problems  Wastewater treatment & power generation at a same time.  Good alternative to Conventional Power Generation Systems. 23-02-2016Composed by : Aman Anand 33
  • 32.  Limit on surface area of anode as bacteria can clog small pores and hence limit on current.  Still not economically competitive.  Power produced way below when compared with conventional cells.  Very slow performance in wastewater treatment. 23-02-2016Composed by : Aman Anand 34
  • 33. 23-02-2016Composed by : Aman Anand 35
  • 34.  We have presented a very simple miniature air-cathode MFC design that we have used to evaluate the use of tea as alternative fuel for MFCs.  Nevertheless this simple curiosity driven experiment gave us the preliminary results to assertively say that energy could be efficiently extracted from the reuse of waste resources such the collection of our afternoon-tea’s leftovers. 24-02-2016 16:28Composed by : Aman Anand 36
  • 35.  IEEE Paper-IEEE International Conference on Nanotechnology July 27-30, 2015, Rome, Italy  B. E. Logan, B. Hamelers, R. Rozendal, U. Schroder, J. Keller, S.Freguia, et al., "Microbial fuel cells: methodology and technology,"Environ. Sci. Technol., vol. 40, pp. 5181-5192, 2006.  https://en.wikipedia.org/wiki/Microbial_fuel_cell  http://www.altenergy.org/renewables/what-are-microbial-fuel- cells.html  http://www.research.psu.edu/capabilities/documents/MFC_QandA.pdf  http://www.altenergy.org/renewables/what-are-microbial-fuel-cells.html 23-2-2015Composed by : Aman Anand 37
  • 36. “Love your Environment”, only way to save it 23-02-2016Composed by : Aman Anand 38
  • 37. 23-02-2016Composed by : Aman Anand 39 ANY Queries ??
  • 38. 30

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