tunnel filtration

  1. Filtration in tunnel with high mineral concentration. Feasible?

    Hi all. ItĀ“s my first post! I have a question about the fearsibility of taking gold of naturaly leaching water Rock tunnel below a future gold mine. From over more that one year, there is a little fissure that is pouring 1 liter per secod of (practically) blue water We pay some studies and...
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