SELECTIVE SEPARATION AND CONCENTRATION SYSTEM FOR WATER SOLUBLE SALTS
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United States of America Patent
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Jul 23, 2015
app pub date -
Jan 16, 2015
filing date -
Jan 17, 2014
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Abstract
A direct contact liquid concentrator selectively separates and concentrates water soluble salts from a wastewater stream containing two or more water soluble salts by concentrating the wastewater stream until the concentrated wastewater stream approaches or reaches a saturation level of the first water soluble salt; delivering the concentrated wastewater to a first settling tank, where the first water soluble salt begins to precipitate out of solution in solid form; drawing a first liquid solution from the first settling tank and sending the liquid solution to a second settling tank; and drawing a second liquid solution from the second settling tank, the second liquid solution having a higher ratio of a second water soluble salt to the first water soluble salt than the first liquid solution.
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