Redox-controlled release dynamics of thallium in periodically flooded arable soil
Samo za registrovane korisnike
2017
Autori
Antić-Mladenović, SvetlanaFrohne, Tina
Kresović, Mirjana
Staerk, Hans-Joachim
Savić, Dubravka
Ličina, Vlado
Rinklebe, Joerg
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
To our knowledge, this is the first work to mechanistically study the impact of the redox potential (EH) and principal factors, such as pH, iron (Fe), manganese (Mn), dissolved organic carbon (DOC), dissolved inorganic carbon (DIC), chlorides (Cl-) and sulfates (SO42-), on the release dynamics of thallium (Tl) in periodically flooded soil. We simulated flooding using an automated biogeochemical microcosm system that allows for systematical control of pre-defined redox windows. The EH value was increased mechanistically at intervals of approximately 100 mV from reducing (-211 mV) to oxidizing (475 mV) conditions. Soluble Tl levels (0.02-0.28 mu g L-1) increased significantly with increases in E-H (r = 0.80, p lt 0.01, n = 30). Thallium mobilization was found to be related to several simultaneous processes involving the gradual oxidation of Tl-bearing, sulfides, reductive dissolution of Fe-Mn oxides and desorption from mineral sorbents. Manganese oxides did not appear to have a conside...rable effect on Tl retention under oxidizing conditions. Before conducting the microcosm experiment, Tl geochemical fractionation was assessed using the modified BCR sequential extraction procedure. The BCR revealed a majority of Tl in the residual fraction (77.7%), followed by reducible (13.3%) and oxidizable fractions (5.9%). By generating high levels of Tl toxicity at low doses, Ti released under oxidizing conditions may pose an environmental threat. In the future, similar studies should be conducted on various soils along with a determination of the Tl species and monitoring of the Tl content in plants to achieve more detailed insight into soluble Tl behavior.
Ključne reči:
Thallium / Geochemical fractionation / Mobilization / Redox potential / Sulfides / Mn oxidesIzvor:
Chemosphere, 2017, 178, 268-276Izdavač:
- Pergamon-Elsevier Science Ltd, Oxford
Finansiranje / projekti:
- Istraživanje klimatskih promena i njihovog uticaja na životnu sredinu - praćenje uticaja, adaptacija i ublažavanje (RS-43007)
- Proučavanje uticaja kvaliteta zemljišta i voda za navodnjavanje na efikasniju proizvodnju poljoprivrednih kultura i očuvanje životne sredine (RS-37006)
DOI: 10.1016/j.chemosphere.2017.03.060
ISSN: 0045-6535
PubMed: 28334667
WoS: 000400879800030
Scopus: 2-s2.0-85015646274
Institucija/grupa
Poljoprivredni fakultetTY - JOUR AU - Antić-Mladenović, Svetlana AU - Frohne, Tina AU - Kresović, Mirjana AU - Staerk, Hans-Joachim AU - Savić, Dubravka AU - Ličina, Vlado AU - Rinklebe, Joerg PY - 2017 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/4326 AB - To our knowledge, this is the first work to mechanistically study the impact of the redox potential (EH) and principal factors, such as pH, iron (Fe), manganese (Mn), dissolved organic carbon (DOC), dissolved inorganic carbon (DIC), chlorides (Cl-) and sulfates (SO42-), on the release dynamics of thallium (Tl) in periodically flooded soil. We simulated flooding using an automated biogeochemical microcosm system that allows for systematical control of pre-defined redox windows. The EH value was increased mechanistically at intervals of approximately 100 mV from reducing (-211 mV) to oxidizing (475 mV) conditions. Soluble Tl levels (0.02-0.28 mu g L-1) increased significantly with increases in E-H (r = 0.80, p lt 0.01, n = 30). Thallium mobilization was found to be related to several simultaneous processes involving the gradual oxidation of Tl-bearing, sulfides, reductive dissolution of Fe-Mn oxides and desorption from mineral sorbents. Manganese oxides did not appear to have a considerable effect on Tl retention under oxidizing conditions. Before conducting the microcosm experiment, Tl geochemical fractionation was assessed using the modified BCR sequential extraction procedure. The BCR revealed a majority of Tl in the residual fraction (77.7%), followed by reducible (13.3%) and oxidizable fractions (5.9%). By generating high levels of Tl toxicity at low doses, Ti released under oxidizing conditions may pose an environmental threat. In the future, similar studies should be conducted on various soils along with a determination of the Tl species and monitoring of the Tl content in plants to achieve more detailed insight into soluble Tl behavior. PB - Pergamon-Elsevier Science Ltd, Oxford T2 - Chemosphere T1 - Redox-controlled release dynamics of thallium in periodically flooded arable soil EP - 276 SP - 268 VL - 178 DO - 10.1016/j.chemosphere.2017.03.060 ER -
@article{ author = "Antić-Mladenović, Svetlana and Frohne, Tina and Kresović, Mirjana and Staerk, Hans-Joachim and Savić, Dubravka and Ličina, Vlado and Rinklebe, Joerg", year = "2017", abstract = "To our knowledge, this is the first work to mechanistically study the impact of the redox potential (EH) and principal factors, such as pH, iron (Fe), manganese (Mn), dissolved organic carbon (DOC), dissolved inorganic carbon (DIC), chlorides (Cl-) and sulfates (SO42-), on the release dynamics of thallium (Tl) in periodically flooded soil. We simulated flooding using an automated biogeochemical microcosm system that allows for systematical control of pre-defined redox windows. The EH value was increased mechanistically at intervals of approximately 100 mV from reducing (-211 mV) to oxidizing (475 mV) conditions. Soluble Tl levels (0.02-0.28 mu g L-1) increased significantly with increases in E-H (r = 0.80, p lt 0.01, n = 30). Thallium mobilization was found to be related to several simultaneous processes involving the gradual oxidation of Tl-bearing, sulfides, reductive dissolution of Fe-Mn oxides and desorption from mineral sorbents. Manganese oxides did not appear to have a considerable effect on Tl retention under oxidizing conditions. Before conducting the microcosm experiment, Tl geochemical fractionation was assessed using the modified BCR sequential extraction procedure. The BCR revealed a majority of Tl in the residual fraction (77.7%), followed by reducible (13.3%) and oxidizable fractions (5.9%). By generating high levels of Tl toxicity at low doses, Ti released under oxidizing conditions may pose an environmental threat. In the future, similar studies should be conducted on various soils along with a determination of the Tl species and monitoring of the Tl content in plants to achieve more detailed insight into soluble Tl behavior.", publisher = "Pergamon-Elsevier Science Ltd, Oxford", journal = "Chemosphere", title = "Redox-controlled release dynamics of thallium in periodically flooded arable soil", pages = "276-268", volume = "178", doi = "10.1016/j.chemosphere.2017.03.060" }
Antić-Mladenović, S., Frohne, T., Kresović, M., Staerk, H., Savić, D., Ličina, V.,& Rinklebe, J.. (2017). Redox-controlled release dynamics of thallium in periodically flooded arable soil. in Chemosphere Pergamon-Elsevier Science Ltd, Oxford., 178, 268-276. https://doi.org/10.1016/j.chemosphere.2017.03.060
Antić-Mladenović S, Frohne T, Kresović M, Staerk H, Savić D, Ličina V, Rinklebe J. Redox-controlled release dynamics of thallium in periodically flooded arable soil. in Chemosphere. 2017;178:268-276. doi:10.1016/j.chemosphere.2017.03.060 .
Antić-Mladenović, Svetlana, Frohne, Tina, Kresović, Mirjana, Staerk, Hans-Joachim, Savić, Dubravka, Ličina, Vlado, Rinklebe, Joerg, "Redox-controlled release dynamics of thallium in periodically flooded arable soil" in Chemosphere, 178 (2017):268-276, https://doi.org/10.1016/j.chemosphere.2017.03.060 . .