why can’t we use dirt to process salt water

Question

If we pumped salt water onto land, would it filter the salt out while adding to our underground water source?

In: 21

Answer 1

No. Dirt doesn’t filter salt out of water. The salt is not microscopic particles, it’s dissolved in the water. You need specially manufactured membranes with the right pore size to hold back the singular ions. On top of that, in the dirt where we pour the salt water, nothing would grow anymore, because plants can’t survive such a high salt content, just like we can’t survive drinking much salt water.