File Download
  Links for fulltext
     (May Require Subscription)
  • Find via Find It@HKUL
Supplementary

Conference Paper: Adsorption behavior of perfluorochemicals (PFCs) on boehmite: influence of solution chemistry

TitleAdsorption behavior of perfluorochemicals (PFCs) on boehmite: influence of solution chemistry
Authors
KeywordsPFOS
PFOA
Isotherm
pH
Ionic strength
Humic acid
Issue Date2013
PublisherElsevier BV.
Citation
The 2013 International Symposium on Environmental Science and Technology (2013 ISEST), Dalian, Liaoning, China, 4-7 June 2013. In Procedia Environmental Sciences, 2013, v. 18, p. 106-113 How to Cite?
AbstractWith global distribution, persistence nature, and strong bioaccumulation, the fate and transport of perfluorooctanesulfonate (PFOS) and perfluorooctanoate (PFOA) in natural environment have recently attracted strong attentions. As boehmite is a common form of hydrated aluminum oxide existing in soils and sediments, this study successfully revealed the adsorption behavior of PFOS and PFOA on boehmite and the influence from solution chemistry. The results of kinetic experiments show that the adsorption equilibrium can be achieved within 48 hours and the boehmite surface is generally receptive to PFOS and PFOA adsorption. The adsorption isotherms estimated the maximum adsorption capacities of PFOS and PFOA on boehmite to be 0.877 μg/m2 and 0.633 μg/m2, respectively. The increase of pH can lead to a moderate decrease of PFOS and PFOA adsorption, owing to the increase of ligand exchange reaction and the decrease of electrostatic interaction. With the compression of electrical double layers, the competitive adsorption from the other ions and the Ca2+ bridging effect between perfluorochemicals have demonstrated their negative influence for PFOS and PFOA adsorption on boehmite surface. Finally, humic acid (HA) also showed significant retardant effects on the sorption of perfluorooctanesulfonate (PFOS) and perfluorobutanesulfonate (PFBuS) on boehmite.
DescriptionThis journal vol. entitled: 2013 International Symposium on Environmental Science and Technology (2013 ISEST)
Session - Environmental Chemistry
Persistent Identifierhttp://hdl.handle.net/10722/190273
ISSN

 

DC FieldValueLanguage
dc.contributor.authorShih, Ken_US
dc.contributor.authorWang, Fen_US
dc.date.accessioned2013-09-17T15:17:00Z-
dc.date.available2013-09-17T15:17:00Z-
dc.date.issued2013en_US
dc.identifier.citationThe 2013 International Symposium on Environmental Science and Technology (2013 ISEST), Dalian, Liaoning, China, 4-7 June 2013. In Procedia Environmental Sciences, 2013, v. 18, p. 106-113en_US
dc.identifier.issn1878-0296-
dc.identifier.urihttp://hdl.handle.net/10722/190273-
dc.descriptionThis journal vol. entitled: 2013 International Symposium on Environmental Science and Technology (2013 ISEST)-
dc.descriptionSession - Environmental Chemistry-
dc.description.abstractWith global distribution, persistence nature, and strong bioaccumulation, the fate and transport of perfluorooctanesulfonate (PFOS) and perfluorooctanoate (PFOA) in natural environment have recently attracted strong attentions. As boehmite is a common form of hydrated aluminum oxide existing in soils and sediments, this study successfully revealed the adsorption behavior of PFOS and PFOA on boehmite and the influence from solution chemistry. The results of kinetic experiments show that the adsorption equilibrium can be achieved within 48 hours and the boehmite surface is generally receptive to PFOS and PFOA adsorption. The adsorption isotherms estimated the maximum adsorption capacities of PFOS and PFOA on boehmite to be 0.877 μg/m2 and 0.633 μg/m2, respectively. The increase of pH can lead to a moderate decrease of PFOS and PFOA adsorption, owing to the increase of ligand exchange reaction and the decrease of electrostatic interaction. With the compression of electrical double layers, the competitive adsorption from the other ions and the Ca2+ bridging effect between perfluorochemicals have demonstrated their negative influence for PFOS and PFOA adsorption on boehmite surface. Finally, humic acid (HA) also showed significant retardant effects on the sorption of perfluorooctanesulfonate (PFOS) and perfluorobutanesulfonate (PFBuS) on boehmite.-
dc.languageengen_US
dc.publisherElsevier BV.-
dc.relation.ispartofProcedia Environmental Sciencesen_US
dc.subjectPFOS-
dc.subjectPFOA-
dc.subjectIsotherm-
dc.subjectpH-
dc.subjectIonic strength-
dc.subjectHumic acid-
dc.titleAdsorption behavior of perfluorochemicals (PFCs) on boehmite: influence of solution chemistryen_US
dc.typeConference_Paperen_US
dc.identifier.emailShih, K: kshih@hkucc.hku.hken_US
dc.identifier.authorityShih, K=rp00167en_US
dc.description.naturelink_to_OA_fulltext-
dc.identifier.hkuros222361en_US
dc.identifier.hkuros222648-
dc.identifier.volume18-
dc.identifier.spage106-
dc.identifier.epage113-
dc.publisher.placeNetherlands-
dc.customcontrol.immutablesml 131120-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats