Method for Purifying of Waste Water
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United States of America
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Issued Date -
Oct 31, 2024
app pub date -
Jul 25, 2022
filing date -
Jul 25, 2022
priority date (Note) -
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Abstract
A method for purifying of waste water includes: supplying a mixed stream, in which wastewater including water, a nitrile-based monomer, and ammonia and an acid component are mixed, to a first column; condensing an upper discharge stream of the first column, supplying the condensed stream to a decanter to separate the stream into a water layer and an organic layer, and supplying components of the organic layer to a second column; and separating a by-product from a lower discharge stream of the second column, and recovering the nitrile-based monomer from an upper discharge stream of the second column.
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