Wastewater Purification Method
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United States of America Patent
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Issued Date -
Jul 25, 2024
app pub date -
Jul 1, 2022
filing date -
Nov 17, 2021
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Abstract
Provided is a wastewater purification method, the method including: supplying a first mixed stream, in which an acid component and wastewater including water, a nitrile-based monomer, and ammonia are mixed, to a first column; recovering the nitrile-based monomer from an upper discharge stream from the first column; supplying a second mixed stream, in which a lower discharge stream from the first column and a base component are mixed, to a second column; and recovering the ammonia from an upper discharge stream from the second column and separating purified wastewater.
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