Abstract
In collaboration with EDF (Electricite de France), after testing fusion of Refiom (Residus d`Epuration des Fumees d`Incineration d`Ordures Menageres), residues from purification of incineration smokes of household rubbish, realised at Porcheville and at the Laboratory of Renardieres with experimental processing of vitrification by plasma, CEA (Centre d`Etudes Atomiques), atomic center of research, began study on resistance in long term of vitrified products. From about thirty five years, CEA carries out research to confine radioactive waste of high activity in stable materials. Glass was the first best one which allowed to incorporate about thirty different chemical elements found in fission products solutions into a stable die with a good chemical durability; three vitrification shops raised, one at Marcoule (`AVM`, 1978) in the south of France, the two other ones at La Hague (`R7`, 1989 and `T7`, 1992) in Normandy. To determine a possible impact of a deep radioactive waste disposal on human and environment, several studies began. In particular, studies on aqueous corrosion of glasses to determine behaviour in long term of glass package (first barrier of confinement) and to estimate kinetics of releasing confined toxical elements on periods of several thousands years. Principal results are exposed in this conference. Experience
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Citation Formats
Vernaz, E.
Study on behaviour in long term of vitrified materials; Etude du comportement a long terme des materiaux vitrifies.
France: N. p.,
1993.
Web.
Vernaz, E.
Study on behaviour in long term of vitrified materials; Etude du comportement a long terme des materiaux vitrifies.
France.
Vernaz, E.
1993.
"Study on behaviour in long term of vitrified materials; Etude du comportement a long terme des materiaux vitrifies."
France.
@misc{etde_10137451,
title = {Study on behaviour in long term of vitrified materials; Etude du comportement a long terme des materiaux vitrifies}
author = {Vernaz, E}
abstractNote = {In collaboration with EDF (Electricite de France), after testing fusion of Refiom (Residus d`Epuration des Fumees d`Incineration d`Ordures Menageres), residues from purification of incineration smokes of household rubbish, realised at Porcheville and at the Laboratory of Renardieres with experimental processing of vitrification by plasma, CEA (Centre d`Etudes Atomiques), atomic center of research, began study on resistance in long term of vitrified products. From about thirty five years, CEA carries out research to confine radioactive waste of high activity in stable materials. Glass was the first best one which allowed to incorporate about thirty different chemical elements found in fission products solutions into a stable die with a good chemical durability; three vitrification shops raised, one at Marcoule (`AVM`, 1978) in the south of France, the two other ones at La Hague (`R7`, 1989 and `T7`, 1992) in Normandy. To determine a possible impact of a deep radioactive waste disposal on human and environment, several studies began. In particular, studies on aqueous corrosion of glasses to determine behaviour in long term of glass package (first barrier of confinement) and to estimate kinetics of releasing confined toxical elements on periods of several thousands years. Principal results are exposed in this conference. Experience shows that safety analysis cannot be based on long term extrapolation of a simple lixiviation result. This analysis must include: a sufficient knowledge in basic mechanisms of alteration to predict the kinetic evolution in a long term. To take in account environment conditions with a normal or accidental scheme (acidity, clay, organic compounds,...). This knowledge broadly developed by CEA for nuclear glasses seems to be easily transposable to different wastes (industrial ones or from hospitals) and takes place in a contract of research CEA/EDF to valorize vitrified products. 9 figs. 4 refs.}
place = {France}
year = {1993}
month = {Dec}
}
title = {Study on behaviour in long term of vitrified materials; Etude du comportement a long terme des materiaux vitrifies}
author = {Vernaz, E}
abstractNote = {In collaboration with EDF (Electricite de France), after testing fusion of Refiom (Residus d`Epuration des Fumees d`Incineration d`Ordures Menageres), residues from purification of incineration smokes of household rubbish, realised at Porcheville and at the Laboratory of Renardieres with experimental processing of vitrification by plasma, CEA (Centre d`Etudes Atomiques), atomic center of research, began study on resistance in long term of vitrified products. From about thirty five years, CEA carries out research to confine radioactive waste of high activity in stable materials. Glass was the first best one which allowed to incorporate about thirty different chemical elements found in fission products solutions into a stable die with a good chemical durability; three vitrification shops raised, one at Marcoule (`AVM`, 1978) in the south of France, the two other ones at La Hague (`R7`, 1989 and `T7`, 1992) in Normandy. To determine a possible impact of a deep radioactive waste disposal on human and environment, several studies began. In particular, studies on aqueous corrosion of glasses to determine behaviour in long term of glass package (first barrier of confinement) and to estimate kinetics of releasing confined toxical elements on periods of several thousands years. Principal results are exposed in this conference. Experience shows that safety analysis cannot be based on long term extrapolation of a simple lixiviation result. This analysis must include: a sufficient knowledge in basic mechanisms of alteration to predict the kinetic evolution in a long term. To take in account environment conditions with a normal or accidental scheme (acidity, clay, organic compounds,...). This knowledge broadly developed by CEA for nuclear glasses seems to be easily transposable to different wastes (industrial ones or from hospitals) and takes place in a contract of research CEA/EDF to valorize vitrified products. 9 figs. 4 refs.}
place = {France}
year = {1993}
month = {Dec}
}