Adsorption of perfluorooctane sulfonate on soils: Effects of soil characteristics and phosphate competition

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• 作者：Jin Qian^a ; ^b ; Mengmeng Shen^a ; ^b ; Peifang Wang^a ; ^b ; ^{pfwang2005@hhu.edu.cn} ; Chao Wang^a ; ^b ; Jun Hou^a ; ^b ; Yanhui Ao^a ; ^b ; Jingjing Liu^a ; ^b ; Kun Li^a ; ^b
• 关键词：Perfluorooctane sulfonate ; Adsorption ; Soil ; Phosphate competition
• 刊名：Chemosphere
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：168
• 期：Complete
• 页码：1383-1388
• 全文大小：727 K
• 卷排序：168

文摘

We examined effects of soil characteristics and phosphate on soil PFOS adsorption. SOM in soils promoted sorption of PFOS; ferric oxides had the opposite effect. Batch sorption data gave nonlinear PFOS adsorption isotherms for each tested soil. In ferric oxide-rich soil, PO4 is a stronger adsorption site competitor than PFOS. In soil with a high SOM content, PO4 is a weaker competitor than PFOS.