Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Michael H. Bradbury"'
Publikováno v:
Environmental Science & Technology
Fe(II) sorption edges and isotherms have been measured on low structural Fe-content montmorillonite (STx) and high structural Fe-content montmorillonite (SWy) under anoxic (O20.1 ppm) and strongly reducing conditions (Eh = -0.64 V). Under anoxic cond
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a15595c3b94034c8d0d78252ee3ba082
Autor:
Michael H. Bradbury, Bart Baeyens, Maria Marques Fernandes, Bernhard Wehrli, Jocelyne Miehé-Brendlé, Rainer Dähn, Daniela Soltermann
Publikováno v:
Environmental Science & Technology
Extended X-ray absorption fine structure (EXAFS) and Mössbauer spectroscopy combined with macroscopic sorption experiments were employed to investigate the sorption mechanism of Fe(II) on an iron-free synthetic montmorillonite (Na-IFM). Batch sorpti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a9a0789e3ac81e1f1b7d388c40d89c7
http://pubs.acs.org/doi/abs/10.1021/es304270c?prevSearch=Soltermann&searchHistoryKey=
http://pubs.acs.org/doi/abs/10.1021/es304270c?prevSearch=Soltermann&searchHistoryKey=
Autor:
Michael H. Bradbury, Maria Marques Fernandes, Rainer Dähn, Andreas C. Scheinost, Bart Baeyens
Publikováno v:
Geochimica et Cosmochimica Acta. 93:262-277
The mechanism of U(VI) sorption on montmorillonite (Na-SWy-1) in the absence and presence of carbonate was investigated through a combination of different approaches: macroscopic sorption experiments, surface complexation modelling using the 2 Site P
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ed4c86af73ac9312aeeb915b3035022
https://doi.org/10.1016/j.gca.2012.04.017
https://doi.org/10.1016/j.gca.2012.04.017
Publikováno v:
Geochimica et Cosmochimica Acta. 75:5154-5168
The 2 site protolysis non electrostatic surface complexation and cation exchange (2SPNE SC/CE) sorption model has been used over the past decade or so to quantitatively describe the uptake of metals with oxidation states from II to VI on 2:1 clay min
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fcf8275ca32d10fb9586ed18470faf01
https://doi.org/10.1016/j.gca.2011.06.025
https://doi.org/10.1016/j.gca.2011.06.025
Autor:
Bart Baeyens, Michael H. Bradbury
Publikováno v:
Applied Clay Science. 52:27-33
A considerable amount of work has been carried out over the past several years to develop mechanistic sorption models capable of describing and predicting the sorption of radionuclides on clay minerals over a wide range of conditions. The focus of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80ecda26aaf8b4831ee21b6c28a36572
https://doi.org/10.1016/j.clay.2011.01.022
https://doi.org/10.1016/j.clay.2011.01.022
Autor:
Michael H. Bradbury, Bart Baeyens
Publikováno v:
Geochimica et Cosmochimica Acta. 73:990-1003
In this study the physico-chemical, titration and sorption characteristics of Na-illite du Puy (Na-illite) have been measured and modelled. Samples of illite, collected in the region of le Puy-en-Velay, France, were purified and conditioned to the Na
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ebe88a06f9af7823256734d6995c727
https://doi.org/10.1016/j.gca.2008.11.017
https://doi.org/10.1016/j.gca.2008.11.017
Publikováno v:
Radiochimica Acta. 96:691-697
The safety case for radioactive waste repositories is, to a large extend based on the physical and chemical retention of radionuclides on clay minerals which are important constituents in both the man-made engineered barriers and in argillaceous host
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c98ead26aea614acf87784b2f35df28f
https://doi.org/10.1524/ract.2008.1555
https://doi.org/10.1524/ract.2008.1555
Autor:
Michael H. Bradbury, B. Baeyens
Publikováno v:
Radiochimica Acta. 94:619-625
The retention characteristics of the bentonite near-field engineered barrier proposed in most of the concepts for the deep geological disposal of high-level waste and spent fuel are an important component in repository performance assessment studies.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e8d10c148d6b44b76e56257ee18355e
https://doi.org/10.1524/ract.2006.94.9-11.619
https://doi.org/10.1524/ract.2006.94.9-11.619
Publikováno v:
Radiochimica Acta. 94:29-36
SummaryNi radioisotopes are present in cementitious repositories for radioactive waste and considered to be safety relevant in performance assessment. The behaviour of non-radioactive nickel and63Ni in cement systems has been investigated in batch-ty
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cfe748e30fcdd62cdd499f906fae081b
https://doi.org/10.1524/ract.2006.94.1.29
https://doi.org/10.1524/ract.2006.94.1.29
Publikováno v:
Geochimica et Cosmochimica Acta. 69:5403-5412
Sorption edges and isotherms for Eu(III) uptake on Ca-montmorillonite and Na-illite in 0.066 mol/L Ca(ClO4)2 and 0.1 mol/L NaClO4 background electrolytes, respectively, were modelled using a quasi-mechanistic sorption model (the two site protolysis n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::443e4411e36f536ccc802a7297446707
https://doi.org/10.1016/j.gca.2005.06.031
https://doi.org/10.1016/j.gca.2005.06.031