khlor

So, what could be used as electron acceptors by the bacteria? and is there any by product? I mean, anaerobic process ever leaves by products such as acids, alcohols or something else. and about the "fuel" what is used to feed the bacteria? here is listed acetic acid, but some of my search says glucose and others even sucrose.

about the cathode I knew that(about definition) as english is not my native language I didn't found better word for that so I used definition. and so I was with some problems with understanding, because batteries works in a similar way and then if I use reactive metals I was fearing to make a common battery and not a microbial fuel cell. but anyway thanks, this clarification was very helpful. so, I carrying on my search and I found something that they call "mudwatt" made from an enterprise that calls "keegotech" I was wondering about it. please, take a look: does this works this way? well I mean is this really a microbial fuel cell?

Interesting. I have more one doubt about the fuel cells.... (this one I forgot to mention) so, here it goes: How do I define cathode from anode(positive pole and negative pole) in a fuel cell? since according with my searches both are made from the same material? Sounds interesting. remember when I was searching about some kind of batterie that the electrodes are not consumed by the reaction so I could just put more electrolyte and continue using it. this seach led me to this search about fuel cells. and on my search I found this: so, according with the link about flow cell this would be the pratical thing, right?

Recently I've been making some search on internet about fuel cells(I was expecting being able to make one) But I found something even more interesting(from my view point) that are the microbial fuel cells(http://en.wikipedia.org/wiki/Microbial_fuel_cell). and I'm about 3 or 4 days searching some informations about it, even thinking in making my own(once I saw many tutorials about) but questions appeared in my mind and I can't find the answer. I hope you guys help me out. first is about the electrodes, there is no much about them I have no idea what kind material to use. second is "am I making a fuel cell or a battery? since according with some of my sources some designs and tutorias they use reactive metals that oxidize and move electrons making electric current" I think thats all.

Hello, Some time ago, I was making alcohol(ethanol) by fermentation of sugar. it worked, then I decided to go further and convert this ethanol to acetic acid(the same thing than make vinegar, but with a clear alcoholic solution) after this, I made the fltration in order to get a clear solution. and I decided to make calcium acetate out of this, by mixing the solution I've got with eggshells(source of calcium carbonate), I waited all the reaction be completed(there's no more CO2 bubbles) and so I boiled the solution. and what I got is in the picture bellow: It's ok to do not be pure, but I was waiting the major part of this to be salt like. note: this thing smells horrible, and is viscous, visually it looks like molten sugar. I made this post in order to get help to what is this? or at least what can this be?

Strange. about one year, I had a homemade setup to make chlorine gas, I used a heavy concentrated NaCl solution and graphite rods (which I got from AA batteries, I think D batteries can do a better work) and worked. of course slowly, but worked. I waited about 6 hours to get something about 25ml of chlorine gas. and I never had problem with the secondary reaction. look out for the size of the electrodes. I think that can be a problem. or may be the current. because according with the faraday's law for the electrolysis, current is what matters.

So.. that wasn't a good idea to think about build something like a "zeppelin airship" very well. thanks by the answers.

hey, anyone do know if is possible to make a PET bottle float with hydrogen gas?

Perhaps fractional distillation can work.

it seems interesting when you say about graphene but graphite don't seems a good idea, graphite can be used to make resistors, but circuit board, well I really don't know.

So... you got big questions, but, nor all must have one answer, because, the concept of god is relative, god is relative and the existence of a god or gods is relative.

hey! I'm new here, someone tested with gas? or have a methodo to refill cans with gas?