Transport of Lead (Pb2+) Ions through silty-clayey soils under acidic conditions

This study aimed to identify effects of pH on the transport of Pb2+ ions through a saturated silty-clayey soil layer by using advection-dispersion equation (ADE). The predictive accuracy of the solution of ADE depends on the proper determination of the retardation by adsorption and, therefore, the adsorption mechanism of lead onto silty-clayey soil was investigated first by performing batch equilibrium experiments. These results showed that the sorption mechanism of lead onto silty-clayey soil depended on pH and could be best described by the Langmuir isotherm. Based on the results of the sequential experiments, it was also concluded that the pH dependent charges in silty-clayey soil were mainly associated with the surfaces of carbonates and the specific adsorption of lead ions. The numerical solutions of the combined form of ADE with the Langmuir isotherm indicated that the migration profiles of lead in silty-clayey soil were a strong function of the parameters of the Langmuir isotherm rather than the infiltration velocity. © 2010 Springer Science+Business Media B.V.

Dergi Adı Transport in Porous Media
Dergi Cilt Bilgisi 84
Dergi Sayısı 3
Sayfalar 699 - 709
Yayın Yılı 2010
Eser Adı
[dc.title]
Transport of Lead (Pb2+) Ions through silty-clayey soils under acidic conditions
Yazar
[dc.contributor.author]
Genç, Ayten
Yazar
[dc.contributor.author]
Ulupınar, Elif
Yayın Yılı
[dc.date.issued]
2010
Yayın Türü
[dc.type]
article
Özet
[dc.description.abstract]
This study aimed to identify effects of pH on the transport of Pb2+ ions through a saturated silty-clayey soil layer by using advection-dispersion equation (ADE). The predictive accuracy of the solution of ADE depends on the proper determination of the retardation by adsorption and, therefore, the adsorption mechanism of lead onto silty-clayey soil was investigated first by performing batch equilibrium experiments. These results showed that the sorption mechanism of lead onto silty-clayey soil depended on pH and could be best described by the Langmuir isotherm. Based on the results of the sequential experiments, it was also concluded that the pH dependent charges in silty-clayey soil were mainly associated with the surfaces of carbonates and the specific adsorption of lead ions. The numerical solutions of the combined form of ADE with the Langmuir isotherm indicated that the migration profiles of lead in silty-clayey soil were a strong function of the parameters of the Langmuir isotherm rather than the infiltration velocity. © 2010 Springer Science+Business Media B.V.
Kayıt Giriş Tarihi
[dc.date.accessioned]
2019-12-23
Açık Erişim Tarihi
[dc.date.available]
2019-12-23
Yayın Dili
[dc.language.iso]
eng
Konu Başlıkları
[dc.subject]
Adsorption
Konu Başlıkları
[dc.subject]
Infiltration
Konu Başlıkları
[dc.subject]
Lead
Konu Başlıkları
[dc.subject]
Soil
Konu Başlıkları
[dc.subject]
Transport modeling
Künye
[dc.identifier.citation]
Genc, A. ve Ulupinar, E. (2010). Transport of lead (Pb2+) ions through silty-clayey soils under acidic conditions. Transport in Porous Media, 84(3), 699-709. doi:10.1007/s11242-010-9535-6
Haklar
[dc.rights]
info:eu-repo/semantics/closedAccess
ISSN
[dc.identifier.issn]
0169-3913
İlk Sayfa Sayısı
[dc.identifier.startpage]
699
Son Sayfa Sayısı
[dc.identifier.endpage]
709
Dergi Adı
[dc.relation.journal]
Transport in Porous Media
Dergi Sayısı
[dc.identifier.issue]
3
Dergi Cilt Bilgisi
[dc.identifier.volume]
84
Tek Biçim Adres
[dc.identifier.uri]
https://dx.doi.org/10.1007/s11242-010-9535-6
Tek Biçim Adres
[dc.identifier.uri]
https://hdl.handle.net/20.500.12628/8373
Görüntülenme Sayısı ( Şehir )
Görüntülenme Sayısı ( Ülke )
Görüntülenme Sayısı ( Zaman Dağılımı )
Görüntülenme
23
09.12.2022 tarihinden bu yana
İndirme
1
09.12.2022 tarihinden bu yana
Son Erişim Tarihi
17 Nisan 2024 01:24
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Tıklayınız
silty-clayey Langmuir isotherm adsorption mechanism experiments results Springer associated Science+Business mainly carbonates charges dependent concluded sequential surfaces function specific parameters numerical velocity infiltration solutions combined indicated migration profiles strong rather accuracy predictive equation advection-dispersion saturated
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