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:
“A pregnant woman and her spouse dream of three babies—the perfect four-month-old who rewards them with smiles and musical cooing, the impaired baby, who changes each day, and the mysterious real baby whose presence is beginning to be evident in the motions of the fetus.”
—T. Berry Brazelton (20th century)
“You know that your toddler needed love and approval but he often seemed not to care whether he got it or not and never seemed to know how to earn it. Your pre-school child is positively asking you to tell him what does and does not earn approval, so he is ready to learn any social refinement of being human which you will teach him....He knows now that he wants your love and he has learned how to ask for it.”
—Penelope Leach (20th century)
“I can’t quite define my aversion to asking questions of strangers. From snatches of family battles which I have heard drifting up from railway stations and street corners, I gather that there are a great many men who share my dislike for it, as well as an equal number of women who ... believe it to be the solution to most of this world’s problems.”
—Robert Benchley (1889–1945)