PMID- 30176462
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20181107
LR  - 20181107
IS  - 1879-1026 (Electronic)
IS  - 0048-9697 (Linking)
VI  - 649
DP  - 2019 Feb 1
TI  - Adsorption of perfluorinated acids onto soils: Kinetics, isotherms, and 
      influences of soil properties.
PG  - 504-514
LID - S0048-9697(18)33170-X [pii]
LID - 10.1016/j.scitotenv.2018.08.209 [doi]
AB  - The adsorption of perfluorinated acids (PFAs) onto soils with different 
      physicochemical properties was investigated in this study. The adsorption 
      kinetics for all PFAs onto the soil with the highest contents of total organic 
      carbon (TOC) and iron oxide were well described by a biexponential adsorption 
      model, indicating that two types of binding sites characterized by a fast and a 
      slow sorption rates were involved in the adsorption, and the time required for 
      achieving adsorption equilibrium was <48 h for all PFAs. The adsorption isotherms 
      were well represented by both of Freundlich equation (R(2) = 0.9547-0.9977) 
      and/or Virial equation (R(2) = 0.8720-0.9995). The interfacial capacitances 
      derived from the Virial isotherm were substantially low (in the range of 33.7 to 
      851 muF/m(2)) for all soils, but were not analyte-independent for all PFAs onto 
      the same soil. The linear regression between distribution coefficient (K(d)) and 
      individual soil property as well as principle component analysis were conducted 
      for determining the dominant soil physicochemical properties affecting the 
      adsorption of PFAs onto soil in the present study. The results indicated that the 
      content of protein rather than of total organic carbon (TOC) was the dominant 
      property, and then followed by anion exchange capacity (AEC) and the content of 
      iron oxides. For the other properties, the influences of fulvic acid (FA) and 
      aluminum oxides were PFA-dependent, while there were no effects of saccharide, 
      humic acid (HA), specific surface area (SSA) and cation exchange capacities (CEC) 
      on the adsorption.
CI  - Copyright (c) 2018 Elsevier B.V. All rights reserved.
FAU - Li, Fei
AU  - Li F
AD  - Xiamen Engineering & Technology Research Center for Urban Water Environment 
      Planning and Remediation, College of Civil Engineering, Huaqiao University, 
      Xiamen 361021, China.
FAU - Fang, Xinliang
AU  - Fang X
AD  - Xiamen Engineering & Technology Research Center for Urban Water Environment 
      Planning and Remediation, College of Civil Engineering, Huaqiao University, 
      Xiamen 361021, China.
FAU - Zhou, Zhenming
AU  - Zhou Z
AD  - Xiamen Engineering & Technology Research Center for Urban Water Environment 
      Planning and Remediation, College of Civil Engineering, Huaqiao University, 
      Xiamen 361021, China.
FAU - Liao, Xiaobin
AU  - Liao X
AD  - Xiamen Engineering & Technology Research Center for Urban Water Environment 
      Planning and Remediation, College of Civil Engineering, Huaqiao University, 
      Xiamen 361021, China.
FAU - Zou, Jing
AU  - Zou J
AD  - Xiamen Engineering & Technology Research Center for Urban Water Environment 
      Planning and Remediation, College of Civil Engineering, Huaqiao University, 
      Xiamen 361021, China.
FAU - Yuan, Baoling
AU  - Yuan B
AD  - Xiamen Engineering & Technology Research Center for Urban Water Environment 
      Planning and Remediation, College of Civil Engineering, Huaqiao University, 
      Xiamen 361021, China. Electronic address: blyuan@hqu.edu.cn.
FAU - Sun, Wenjie
AU  - Sun W
AD  - Department of Civil and Environmental Engineering, Southern Methodist University, 
      Dallas, TX 75275, USA. Electronic address: wsun@smu.edu.
LA  - eng
PT  - Journal Article
DEP - 20180817
PL  - Netherlands
TA  - Sci Total Environ
JT  - The Science of the total environment
JID - 0330500
OTO - NOTNLM
OT  - Adsorption
OT  - Freundlich
OT  - Kinetics
OT  - Perfluorinated acids
OT  - Soil properties
OT  - Virial equation
EDAT- 2018/09/04 06:00
MHDA- 2018/09/04 06:01
CRDT- 2018/09/04 06:00
PHST- 2018/05/12 00:00 [received]
PHST- 2018/08/06 00:00 [revised]
PHST- 2018/08/16 00:00 [accepted]
PHST- 2018/09/04 06:00 [pubmed]
PHST- 2018/09/04 06:01 [medline]
PHST- 2018/09/04 06:00 [entrez]
AID - S0048-9697(18)33170-X [pii]
AID - 10.1016/j.scitotenv.2018.08.209 [doi]
PST - ppublish
SO  - Sci Total Environ. 2019 Feb 1;649:504-514. doi: 10.1016/j.scitotenv.2018.08.209. 
      Epub 2018 Aug 17.