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:
“Perchance not he but Nature ailed,
The world and not the infant failed.
It was not ripe yet to sustain
A genius of so fine a strain,
Who gazed upon the sun and moon
As if he came unto his own,
And, pregnant with his grander thought,
Brought the old order into doubt.”
—Ralph Waldo Emerson (1803–1882)
“Your preschool child will chatter endlessly to you. If you half-listen and half-reply the whole conversation will seem, and become, tediously meaningless for both of you. but if you really listen and really answer, he will talk more and what he says will make more sense.”
—Penelope Leach (20th century)
“The Settlement ... is an experimental effort to aid in the solution of the social and industrial problems which are engendered by the modern conditions of life in a great city. It insists that these problems are not confined to any one portion of the city. It is an attempt to relieve, at the same time, the overaccumulation at one end of society and the destitution at the other ...”
—Jane Addams (1860–1935)