A few weeks ago I was thinking about iboga extraction. I had developed the extraction using vinegar and ammonia because it seemed to work fine, and the waste stream was safe and effective for use as fertilizer since it would fully biodegrade. When I recently tried the extraction with hydrochloric acid, that worked better, but I was concerned with how the chloride from the hydrochloric acid would be dealt with by the environment, since putting salt in soil is well known to prevent plants from growing in it. But it also seems obvious that the ability of salt to prevent plant growth should depend on the amount of rainfall the soil is exposed to, since nothing prevents the salt, once dissolved, from being completely leached from the soil into the ground water. Washing salt into the ground water would not be a problem except for the eventual salinification of the ground water, which itself would not be a problem if the ground water were not pumped back to the surface at wells for human use.
What puzzles me though is how essential ions, like sodium and potassium for example, which are almost impossible to render insoluble, prevent being completely leached from soil and made unavailable to life on it. Back when salt was more precious than gold, why was it only humans that were having a hard time surviving on the salt in their diet, having to trek to the nearest ocean to supplement it? What did humans do before they knew to find salt in the ocean? The mineral composition of blood has been compared to that of sea water, as if to imply that life evolved in the oceans until finding a way to carry a bit of the ocean inside each creature. I suppose eating enough meat would pass on the salt therein, but where does it enter the system? Each urination, each creature that dies uneaten, allows salt to leach into ground water irreversibly forever. How do plants and insects, the beginning of the food chain, obtain salt far inland? The rain cycle is like an enormous Soxhlet extractor, removing soluble ions from the surface of the Earth and accumulating them in lakes, ground water and the ocean. Given enough time - and it shouldn't take much - all water soluble ions should be separated, leaving any life dependent on them impossible, unless it happens to have access to lakes, ground water or the ocean. Yet life persists. The only explanation I can think of is that some salt may enter the air as particulates - salt spray. I've never heard of this, and it seems unlikely, but I don't know how else to explain that life is still here.
My only remaining mission is to testify and show that God is entirely good and not evil.