1979
DOI: 10.1016/0009-2541(79)90102-5
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Sorption of uranyl by humic acids

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Cited by 61 publications
(29 citation statements)
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“…At ambient temperatures (-25 OC), U is adsorbed to humic substances through rapid ion-exchange and complexation processes with carboxylic and other acidic functional groups (Idiz et al 1986 Borovec et al 1979, Szalay 1964 without reduction to the U(IV) species. It has been suggested that U(VI) adsorbed (or fixed) to organic matter may undergo reduction to U(IV) followed by precipitation of UO, (Andreyev and Chumachenko 1964).…”
Section: Sorptionmentioning
confidence: 99%
“…At ambient temperatures (-25 OC), U is adsorbed to humic substances through rapid ion-exchange and complexation processes with carboxylic and other acidic functional groups (Idiz et al 1986 Borovec et al 1979, Szalay 1964 without reduction to the U(IV) species. It has been suggested that U(VI) adsorbed (or fixed) to organic matter may undergo reduction to U(IV) followed by precipitation of UO, (Andreyev and Chumachenko 1964).…”
Section: Sorptionmentioning
confidence: 99%
“…Uranium(VI) adsorbs onto a variety of minerals and related phases, including clays (e.g., Ames et al 1982;Chisholm-Brause et al 1994), oxides and silicates (e.g., Hsi and Langmuir 1985;Waite et al 1994), and natural organic material (e.g., Borovec et al 1979;Shanbhag and Choppin 1981;Read et al 1993). Important environmental parameters affecting U migration include oxidation/reduction conditions, pH, concentrations of complexing ligands such as dissolved carbonate, ionic strength, and mineralogy.…”
Section: General Adsorption Behaviormentioning
confidence: 99%
“…Em geral, as contagens gama no topo do Bt são muito intensas, sendo que anomalias de menor intensidade podem ocorrer disseminadas pelo corpo do referido horizonte. Estas informações são corroboradas por dados dos autores citados na paisagem anterior e em dados de Tieh et al (1980), Borovec et al (1979) e Borovec (1981.…”
Section: Paisagem Transeluvialunclassified