Pregnant Leach Solution (PLS) is acidic metal-laden water generated from stockpile leaching and heap leaching. Pregnant Leach Solution is used in the SX/EW process.
The portion of an original liquid that remains after other components have been dissolved by a solvent is called raffinate.
Famous quotes containing the words pregnant, leach and/or solution:
“Out in the sky the great dark clouds are massing;
I look far out into the pregnant night,”
—Paul Laurence Dunbar (1872–1906)
“Guilt is the most destructive of all emotions. It mourns what has been while playing no part in what may be, now or in the future. Whatever you are doing, however, you are coping, if you listen to your child and to your own feelings, there will be something you can actually do to make things right.”
—Penelope Leach (20th century)
“The truth of the thoughts that are here set forth seems to me unassailable and definitive. I therefore believe myself to have found, on all essential points, the final solution of the problems. And if I am not mistaken in this belief, then the second thing in which the value of this work consists is that it shows how little is achieved when these problems are solved.”
—Ludwig Wittgenstein (1889–1951)