Comment by blueflow

Comment by blueflow 2 days ago

4 replies

There is the smoking gun:

> resulting in ammonia concentrations ranging from 25 to 120 μM in 1 hour

Not usable as fuel. You'd need to separate the ammonium from the water using a energy intensive process (cooking or such).

NortySpock 2 days ago

At that point in the presentation, I'd probably sarcastically ask if they were accidentally measuring how many dogs mark their territory in a 100 foot radius of the device, per hour, via their collector.

  • amluto 2 days ago

    They did attempt to control for the ammonia concentration in the collected water without their catalyst. But they did not try to calculate the equilibrium concentration of ammonia in water exposed to the atmosphere.

smaudet 2 days ago

Direct solar energy output, perhaps. Seems potentially simple to boil it off with heat.

cyberax 2 days ago

You can catalytically oxidize ammonia in water solution. The energy generated is more than enough to overcome the energy released during solvation.