SYSTEM FOR REMOVING PER- AND POLYFLUORINATED ALKYL SUBSTANCES FROM CONTAMINATED AQUEOUS STREAMS, VIA CHEMICAL AIDED FILTRATION, AND METHODS OF USE THEREOF
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United States of America Patent
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Issued Date -
Aug 22, 2024
app pub date -
Apr 26, 2024
filing date -
Jun 18, 2020
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Abstract
A system may include an agitation and mixing subsystem, the agitation and mixing subsystem configured to agitate the aqueous stream and mix the aqueous stream with the anhydrite quantity such that the anhydrite quantity interacts with negatively charged contaminants to form one or more precipitate complexes, which comprise a calcium cation and a negatively charged contaminant, in the aqueous stream. A system may include an electro-coagulation and/or electro-oxidation subsystem configured to receive the aqueous stream comprising the one or more precipitate complexes, the electro-coagulation and/or electro-oxidation subsystem comprising aluminum-containing or titanium-containing electrodes that are configured, when a voltage is applied, to yield hydroxyl ions in the aqueous stream comprising the one or more precipitate complexes.
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