/sci/ - Science & Math

Technically, not limitless.

>>3770635
Practically limitless.

>>3770635
What's with all the cyrillic names on /sci/ lately, sniper?

I wonder what the industrial-scale production costs would be. The process they describe doesn't account for completing the cycle (once the salt water and fresh water balance out into salty water, you need to purify the water again to start over, and that definitely requires energy input). And, of course, you're breaking down larger organic molecules of some kind, and they have to come from somewhere too.

>>3770659
>balance out

?????????????????????????????????????????????????

Where does the energy come from to do this? Sunlight? Biomass?

>>3770668
>read the abstract...

>ENTROPIC

>>3770675
Oh u.

It comes from the sun, because the sun is what makes ocean water evaporate and magically turn into fresh water.

>>3770668
Breaking down organic molecules and the osmotic pressure between salty water and fresh water (the salt wants to even out).

>There is a tremendous source of entropic energy available from the salinity difference between river water and seawater, but this energy has yet to be efficiently captured and stored. Here we demonstrate that H2 can be produced in a single process by capturing the salinity driven energy along with organic matter degradation using exoelectrogenic bacteria.

As the process runs, you run out of organic molecules and the salt spreads out into the fresh water. To complete the cycle, you need more organic molecules and you have to separate the salt out of the water.

>>3770694
I don't have the words.

>>3770655
I don't know about lately, but I've been posting on 4chan for at least a year with this nick.