[UncleOxidant]

> Other thoughts: iron bearing silicates often contain gold. New gold rush?

Could a significant amount of gold be extracted from the water that way? It would likely be a much more environmentally friendly way to mine gold given that there would be no digging required.

[RajT88]

If they could make it work at scale, they'd have done it with ocean water by now.

That's the sci-fi dream: all the elements you could want end up dissolved in varying amounts in seawater. It's unfortunately a hard engineering problem.

[csours]

It would be significantly more concentrated in this river water. As far as environmentally friendly, maybe, but not necessarily.