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Ion binding to natural organic matter: General considerations and the NICA–Donnan model
Abstract The general principles of cation binding to humic matter and the various aspects of modeling used in general-purpose speciation programs are discussed. The discussion will focus on (1) theExpand
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Geochemical and grain-size distribution of radioactive and stable cesium in Fukushima soils: implications for their long-term behavior.
Availability and mobility of radioactive cesium, (137)Cs, in soils are crucial for recovery from the accident in the Fukushima Dai-ichi Nuclear Power Plants. In this study we investigated theExpand
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Adsorption of humic acid on goethite: isotherms, charge adjustments, and potential profiles.
The adsorption of natural organic matter (NOM) on mineral (hydr)oxide plays an important role in the evaluation of the speciation of toxic metal ions in the environment. Because both NOM and mineralExpand
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Analysis of copper binding in the ternary system Cu2+/humic acid/goethite at neutral to acidic pH.
Binding of heavy metal and actinide ions to natural colloids, such as humic substances (HSs) and metal (hydr)-oxides, plays an important role in the ecotoxicological behavior of these ions. SeveralExpand
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The structure of monomeric and dimeric uranyl adsorption complexes on gibbsite: A combined DFT and EXAFS study
Abstract We investigated the structure of uranyl sorption complexes on gibbsite (pH 5.6–9.7) by two independent methods, density functional theory (DFT) calculations and extended X-ray absorptionExpand
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Isotopic ratio and vertical distribution of radionuclides in soil affected by the accident of Fukushima Dai-ichi nuclear power plants.
The results of γ analyses of soil samples obtained from 50 locations in Fukushima prefecture on April 20, 2011, revealed the presence of a spectrum of radionuclides resulted from the accident of theExpand
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Desorption kinetics of cesium from Fukushima soils.
Understanding the behaviors of Cs(+) in soils is crucial for evaluation of the impacts of disposal of soils contaminated by radiocesium, (137)Cs. The desorption rate of Cs(+) evaluated in relativelyExpand
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Electrostatic interaction models for ion binding to humic substances
Abstract Preferably, the description of ion binding to humic substances (HSs) is done with thermodynamic constants that do not depend on the environmental conditions. To solve this problem, modelsExpand
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Neutron activation analysis of trace elements at sediment-water interface in the Biwa Lake, Japan
Concentrations of eighteen trace elements at the sediment-water interface in Biwa Lake were determined by neutron activation analysis. Release of iron, manganese and arsenic from the sediment to theExpand
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Metal Sorption to Pseudomonas fluorescens: Influence of pH, Ionic Strength and Metal Concentrations
Migration behavior of radionuclides should be understood in order to estimate the impact of high-level radioactive waste (HLW) disposal on the environment. Bacteria, one of the major organic sorbentsExpand
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