Competition of organic and mineral phases in radiocesium partitioning in organic soils of Scotland and the area near Chernobyl

Article Abstract:

Radiocesium (RCs) partitioning was conducted in organic soils of Scotland and the area near Chernobyl. The RCs distribution coefficient appeared unaffected by the increase of NH4 in the solution containing 99% organic matter content soil and all the humin fractions. The other three soils fractions, meanwhile, demonstrated a decrease in distribution coefficient upon an increase of NH4. Desorption yields were also found to be lower with CaCl2 than with CH3COONH4.

Scotland, Environmental aspects, Soil pollution, Radiochemical analysis

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Assessment of a sodium nonatitanate and pharmacosiderate-type ion exchangers for strontium and cesium removal from DOE waste stimulants

Article Abstract:

Sodium nonatitanate and three-dimensional tunnel-structured pharmacosiderites work effectively in the removal of strontium and cesium from the Department of Energy's aqueous defense waste simulants. At least 97% of strontium present in springs groundwater simulant were removed in one static equilibrium when sodium nonatitanate and pharmacosiderite-type ion exchangers were used. The same type of synthetic exchangers were able to remove more than 98% of cesium.

Refuse systems, Radiation Waste R&D, Strontium & Compounds, Industrial Inorganic Chemicals, Inorganic Chemicals, Other Basic Inorganic Chemical Manufacturing, Methods, Radioactive waste disposal, Ion exchange, Strontium compounds, Inorganic compounds, Strontium

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Concentrations of 137Cs and K in soil solution predict the plant availabilty of 137Cs in soils

Article Abstract:

Studies reveal that the differences in 137Cs retention, which affect 137Cs supply to roots, influence plant availability of 137Cs in mineral soils. Differences in potassium (K) availability, which affect the 137Cs root uptake process, was also found to influence plant availability of 137Cs in mineral soils.

Potassium, Potassium (Chemical element), Soil disinfection

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