Removal of Perfluorooctane and Perfluorobutane Sulfonate from Water via Carbon Adsorption and Ion Exchange

被引：114
作者：
Carter, Kimberly E. [1 ]
Farrell, James [1 ]
机构：
[1] Univ Arizona, Dept Environm Chem & Engn, Tucson, AZ 85721 USA
来源：
SEPARATION SCIENCE AND TECHNOLOGY | 2010年 / 45卷 / 06期
基金：
美国国家科学基金会;
关键词：
adsorbents; granular activated carbon; perfluorobutane sulfonate; perfluorooctane sulfonate; PFAS; PFBS; PFOS; surfactants; DIAMOND FILM ELECTRODES; ACTIVATED CARBON; PERFLUORINATED COMPOUNDS; SURFACTANTS; TOXICITY; PFOS;
D O I：
10.1080/01496391003608421
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
This research investigated the removal of perfluorooctane sulfonate (PFOS) and perfluorobutane sulfonate (PFBS) from water by Filtrasorb (R) 400 granular activated carbon (GAC) and Amberlite (R) IRA-458 ion exchange resin. Kinetic experiments showed that the time required for the uptake equilibrium was 50 hours for the GAC and 10 hours for the resin. Sorption isotherms showed that PFOS and PFBS uptake was endothermic and was promoted by hydrophobic effects on the GAC, and by a combination of hydrophobic adsorption and ion exchange on the resin. The aqueous solubility of PFOS was highly dependent on the ionic composition of the solution. PFOS and PFBS uptake by the resin was hysteretic and nearly irreversible using conventional regeneration methods.
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收藏
页码：762 / 767
页数：6
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