Influence of the colloid type on the transfer of 60Co and 85Sr in silica sand column under varying physicochemical conditions

Autor: Natalia Solovitch-Vella, Jean-Marie Garnier, Philippe Ciffroy
Přispěvatelé: Laboratoire d'étude radioécologique du milieu continental et marin (LERCM), Institut de Radioprotection et de Sûreté Nucléaire (IRSN)-Direction de l'Environnement et de l'Intervention, Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Collège de France (CdF (institution))-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Recherche Agronomique (INRA), Laboratoire National d’Hydraulique et Environnement (EDF R&D LNHE), EDF R&D (EDF R&D), EDF (EDF)-EDF (EDF), Laboratoire d'Etudes Radioécologiques des milieux Continental et marin (IRSN/PRP-ENV/SESURE/LERCM), Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)
Rok vydání: 2006
Předmět:
Synthetic latex (SHL)
cobalt 60
Health
Toxicology and Mutagenesis
02 engineering and technology
010501 environmental sciences
01 natural sciences
Natural organic matter
radionuclide migration
Colloid
Low affinity
Ionic strength
Phase (matter)
binding affinity
Soil Pollutants
Water Pollutants
strontium
Cobalt Radioisotopes
020701 environmental engineering
Hydrophilicity
Radioactive
chemistry.chemical_classification
latex
pH
Chemistry
digestive
oral
and skin physiology
article
General Medicine
tracer
Hydrogen-Ion Concentration
Silicon Dioxide
cobalt
Pollution
pH effects
silica
solid
Strontium Radioisotopes
flow rate
Environmental Monitoring
Water Pollutants
Radioactive
endocrine system
Environmental Engineering
0207 environmental engineering
Mineralogy
complex mixtures
TRACER
physical chemistry
Soil Pollutants
Radioactive
Environmental Chemistry
Organic matter
Reactivity (chemistry)
Colloids
natural organic matter
radioisotope
colloid
0105 earth and related environmental sciences
Radioisotopes
Natural organic matter (NOM)
concentration (parameters)
Concentration (process)
physicochemical property
Osmolar Concentration
Public Health
Environmental and Occupational Health
General Chemistry
strontium 85
Transfer
body regions
Kinetics
Physicochemical parameters
Chemical engineering
[SDU]Sciences of the Universe [physics]
Radioactive Waste
Silica sand
Zdroj: Chemosphere
Chemosphere, 2006, 65 (2), pp.324-331. ⟨10.1016/j.chemosphere.2006.02.014⟩
ISSN: 0045-6535
DOI: 10.1016/j.chemosphere.2006.02.014
Popis: The influence of two types of colloids (natural organic matter, NOM), a colloid with high affinity for radionuclides (RN(s)), and hydrophilic synthetic latex (SHL), a colloid with low affinity for RN(s) on the transfer of 60Co and 85Sr in a silica sand column was studied under different physicochemical conditions : pH (4.9), ionic strength (10-3 M and 10-2 M), concentration of colloids (100 mg l-1, 10 mg l-1), flow velocity (12.4 cm h-1 and 3.7 cm h-1), water saturation of the column (100% and 70%). In the absence of colloids, the transfer of 60Co and 85Sr was retarded compared to the transfer of the conservative tracer. In the presence of colloids and according to the specific physicochemical conditions, an acceleration or retardation of 60Co and 85Sr transfer was observed compared to their transfer in the absence of colloids. Our results evidenced that any colloids even with low reactivity could significantly modify the RN transfer. However, the extent to which the transfer was influenced differs according to the colloid type; the NOM exhibiting higher impact than SHL. Batch experiments helped in interpreting of the interactions between the colloids, RN(s) and solid phase observed in column. © 2006 Elsevier Ltd. All rights reserved.
Databáze: OpenAIRE
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