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Article: Sorption of Triton X-100 on soil organic matter fractions: Kinetics and isotherms

TitleSorption of Triton X-100 on soil organic matter fractions: Kinetics and isotherms
Authors
Issue Date2009
PublisherI O S Press. The Journal's web site is located at http://www.iospress.nl/html/10010742.php
Citation
Journal Of Environmental Sciences, 2009, v. 21 n. 6, p. 795-800 How to Cite?
AbstractKinetics and isotherms of Triton X-100 sorption on soil, base-extracted soil (BE), humic acid (HA) and humin (HM) were investigated respectively to get better understanding on characteristics of the surfactant sorption onto different soil organic matters (SOMs). It was demonstrated that the kinetics results could be satisfactorily described by the pseudo-second order model. The half of the time to reach equilibrium (t 1/2) for different sorbents followed the sequence of soil > HA > BE > HM. Furthermore, the calculated equilibrium sorption capacity (C eq) was found in the sequence of HA > BE > HM > soil, which agreed well with the experimental results. The isotherms of Triton X-100 sorption on soil and HA could be well described by the S-type isotherm, but BE and HM by the L-type. The isotherms of all the four sorbents were found reasonably fitted to the Langmuir equation. The K d value, defined as the ratio of Triton X-100 in sorbent and in the equilibrium solution for given concentrations, generally followed the order of HM > HA > soil > BE. Separated HM and HA showed high affinity for Triton X-100, but the HA and HM in soil and BE were tightly bounded by the minerals. Thus, the HA on the soil surface might dominate the sorption, whereas the bounded HM would play a key role upon the surfactants being penetrated inside the soil. © 2009 The Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences.
Persistent Identifierhttp://hdl.handle.net/10722/168381
ISSN
2015 Impact Factor: 2.208
2015 SCImago Journal Rankings: 0.832
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorZhang, Gen_US
dc.contributor.authorHu, Hen_US
dc.contributor.authorSun, Wen_US
dc.contributor.authorNi, Jen_US
dc.date.accessioned2012-10-08T03:18:14Z-
dc.date.available2012-10-08T03:18:14Z-
dc.date.issued2009en_US
dc.identifier.citationJournal Of Environmental Sciences, 2009, v. 21 n. 6, p. 795-800en_US
dc.identifier.issn1001-0742en_US
dc.identifier.urihttp://hdl.handle.net/10722/168381-
dc.description.abstractKinetics and isotherms of Triton X-100 sorption on soil, base-extracted soil (BE), humic acid (HA) and humin (HM) were investigated respectively to get better understanding on characteristics of the surfactant sorption onto different soil organic matters (SOMs). It was demonstrated that the kinetics results could be satisfactorily described by the pseudo-second order model. The half of the time to reach equilibrium (t 1/2) for different sorbents followed the sequence of soil > HA > BE > HM. Furthermore, the calculated equilibrium sorption capacity (C eq) was found in the sequence of HA > BE > HM > soil, which agreed well with the experimental results. The isotherms of Triton X-100 sorption on soil and HA could be well described by the S-type isotherm, but BE and HM by the L-type. The isotherms of all the four sorbents were found reasonably fitted to the Langmuir equation. The K d value, defined as the ratio of Triton X-100 in sorbent and in the equilibrium solution for given concentrations, generally followed the order of HM > HA > soil > BE. Separated HM and HA showed high affinity for Triton X-100, but the HA and HM in soil and BE were tightly bounded by the minerals. Thus, the HA on the soil surface might dominate the sorption, whereas the bounded HM would play a key role upon the surfactants being penetrated inside the soil. © 2009 The Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences.en_US
dc.languageengen_US
dc.publisherI O S Press. The Journal's web site is located at http://www.iospress.nl/html/10010742.phpen_US
dc.relation.ispartofJournal of Environmental Sciencesen_US
dc.subject.meshAdsorptionen_US
dc.subject.meshDetergents - Chemistryen_US
dc.subject.meshHumic Substancesen_US
dc.subject.meshOctoxynolen_US
dc.subject.meshSoilen_US
dc.subject.meshSoil Pollutants - Chemistryen_US
dc.titleSorption of Triton X-100 on soil organic matter fractions: Kinetics and isothermsen_US
dc.typeArticleen_US
dc.identifier.emailHU, H:haohu@hku.hken_US
dc.identifier.authorityHU, H=rp00707en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/S1001-0742(08)62343-8en_US
dc.identifier.pmid19803085-
dc.identifier.scopuseid_2-s2.0-66949164783en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-66949164783&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume21en_US
dc.identifier.issue6en_US
dc.identifier.spage795en_US
dc.identifier.epage800en_US
dc.identifier.isiWOS:000266943600015-
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridZHANG, G=7405270543en_US
dc.identifier.scopusauthoridHU, H=7404097564en_US
dc.identifier.scopusauthoridSUN, W=38962293800en_US
dc.identifier.scopusauthoridNI, J=7201636727en_US

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