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multimeter specifications PDF Print E-mail
Monday, 14 September 2009

Hello-

I'm working on an MFC that will require me to take voltage readings every 20 minutes for roughly 2 weeks.  I have been looking into multimeters & data acquisition cards to log the data directly in my PC.  I was recently advised that the internal impedance of the multimeter/data acquisition system must be at least 10X higher that the impedence (internal resistance) of the MFC.  This would mean that the low-cost data acquisition systems are not viable and would record erroneous data for any voltage > 100 mV.  I am curious if others have come across this problem, and how it was resolved.  Are the high-tech multimeters (e.g. Fluke or Keithley) the only way to accurately record voltage from the MFCs?  Does anyone have reviews of the multimeters or data acquisitons cards they have used?  Thanks very much.
 Kyla Gregoire
University of Maryland


 
Science Project PDF Print E-mail
Friday, 11 September 2009
Hello I'm a high school student and I'm going to be constructing an MFC for a science project. I've been reading about some homemade MFCs and I was wondering if there are any precautions I should take while making it so as to ensure it works properly. I'm creating a 2 chambered MFC and using wastewater from a nearby water source. A few questions I'm considering for the research are which types of microorganisms are most effective in producing the most electric current and wastewater from what area of the water source produces the most electric current. Any tips on building and testing MFCs would be greatly appreciated! Thanks!

 
single chamber MFC PDF Print E-mail
Monday, 07 September 2009

hi,
we want to setup a single chamber MFC in the our laboratory. how can we supply single chamber MFC or air catot MFC. can we buy single chamber MFC which exsistent in article  HONG L.,RAMANATHAN R., BRUCE E . LOGAN 2004 "Production of Electricity during Wastewater Treatment Using a Single Chamber Microbial Fuel Cell"

we are looking for urgent reply..


 
internal resistance PDF Print E-mail
Monday, 31 August 2009
 Hi all,  i am arzu from Turkey  i am working on MFC's,  My reactors have two chamber which connected with PEM, and i used electrode from carbon paper. I can not measure current value and my resistance is 1000 ohms, may not be  current from high internal resistance?  i need some informations about internal resistance. please leave a comment..

 
Models for power density? PDF Print E-mail
Wednesday, 26 August 2009

Sorry to bother you like this but I was curious if it is possible to build models for power density plots for microbial fuel cells, so that one could predict the power density for a given MFC based on the concentration of substrate, minerals, amounts of vitamins, size of the cathode paper impregnated with a given amount of platinum and size of the anode carbon veil…


 
Microbial fuel cell on coca cola wastewater? PDF Print E-mail
Sunday, 09 August 2009

I am from the Philippines. Sludge from a coca cola plant is the main focus of our research.We want to minimize the sludge for invironmental reason.One way is to convert the wastewater (which the sludge came from) to something useful. 

Will a wastewater from a plant lets say from a coca cola plant feasible for a microbial fuel cell?

My students are interested working on it as their research project.I've read a research on a brewing wastewater as a source of MFC.

Please help us know what are the possible bacteria so that we can check it if it is in the wastewater.

Thank you.


 
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