Electrolysis for Aeration of water?

[jsd453]

Farrah,

You say only a small amount of O2 will be absorbed by the water. Would the ?small? amount of pure O2 provide better aeration than a 20% concentration injected from the ?air? using something like a blower?
Again, not being chemically savvy, if I had a low oxygen content of say 3 ppm and then used the electrolysis method to introduce O2, wouldn?t the O2 become readily absorbed into the water until it was saturated with oxygen?

Thanks again,

Jerry

[Farrah Day]

Hi Jerry,

depending on the cost of this thing, you might be better off just using a normal aerator/bubbler. You sure won't have the hydrogen to worry about then. It might just be a new gimmick.  Unless it is compared scientifically and directly to an air bubbler it's hard to say.

What I can say though, is that if all the oxygen got absorbed back into the water, then only hydrogen would be given off at the surface.  Now think about this. At school, when you electrolyse water in your science class you collect exactly twice as much hydrogen as oxygen, because of waters H2O composition.  You don't collect 3 times more hydrogen because a lot of oxygen gets absorbed into the water.... do you.

You can encourage more oxygen into water just by splashing your hands around in it. I think an aerator would work just as well in most circumstances.

[hansvonlieven]

Normally I would say you are absolutely right Farrah,

I don't know much about raising fish, having had a goldfish when I was a kid hardly qualifies me to speak on the subject. From what I read in the company release though it would appear that fish do better with an oxygenator than an air blower, which is the standard way of oxygenating water in the industry.

Maybe it has something to do with the fact that an air blower enriches the water with nitrogen as well.

Hans von Lieven

[Farrah Day]

Yes, I'm only speculating really Hans, but we both know that most of the oxygen will rise up through the water, as per our wfcs. So how much oxygen is actually disolving is anyones guess!

Farrah Day

[hansvonlieven]

depends on water temperature, the colder the water the more will dissolve. Same as CO2.

How cold the fish can stand is a moot point LOL

Hans von Lieven