Recovery of perfluorooctane sulfonate (PFOS) and perfluorooctanoate (PFOA) from dilute water solution by foam flotation

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Recovery of perfluorooctane sulfonate (PFOS) and perfluorooctanoate (PFOA) from dilute water solution by foam flotation

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作者：Yu-Chi Lee^a ; ^b ; Po-Yen Wang^b ; Shang-Lien Lo^a ; C.P. Huang^b ; ^{huang@udel.edu" class="auth_mail" title="E-mail the corresponding author}
关键词：Perfluorooctanoic acid ; Perfluorooctane sulfonate ; Foam separation ; Foam flotation ; Metallic activators
刊名：Separation and Purification Technology
出版年：2017
出版时间：1 February 2017
年：2017
卷：173
期：Complete
页码：280-285
全文大小：1882 K

文摘

class="label">•: Metal activators enhanced the foam separation of perfluorooctanonic surfactants.
class="label">•: The foam separation efficiency follow the order: Fe(III) ⩾ La(III) > Al(III) > Ca(II) > Fe(II) > K(I).
class="label">•: Perfluorooctanonic surfactants had >99% removal efficiency using 11.5 mM of Fe(III) in 5 min.
class="label">•: Acidic pH, e.g., 2.3 favored the foam separation of perfluorooctanonic surfactants.
class="label">•: Adjusting the pH of the foamate to 7.0, ca. 84–91% of perfluorooctanonic surfactants were recovered.

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