TERMIUM Plus^®

Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 CONT

Interpretation of these dose limits in terms of individual nuclides to be released from a particular site leads to the Derived Release Limits(DRL). These DRL' s, which are approved by the AECB [Atomic Energy Control Board], tell each nuclear power plant operator how much of each nuclide it is allowed under law to release from the stations.  3, fiche 1, Anglais, - derived%20operational%20limit

Fiche 1,  Justifications,  Français

Record number: 1, Textual support number: 1 CONT

L'interprétation des limites de doses dans le cas de nucléides particuliers à libérer à partir d'un emplacement donné permet d'établir une limite opérationnelle dérivée (LOD). Cette limite, approuvée par l'EACL [Énergie atomique du Canada limitée] indique à chaque exploitant de centrale nucléaire la quantité de chaque nucléide qu'il peut légalement laisser échapper de sa centrale.  3, fiche 1, Français, - limite%20op%C3%A9rationnelle%20d%C3%A9riv%C3%A9e

Fiche 1,  Justifications,  Espagnol

Fiche 2,  Justifications,  Anglais

Record number: 2, Textual support number: 1 CONT

There are two forms of injection into deep geologic formations that have been suggested or used for LLW disposal: hydrofracture and deep well injection. Both methods are primarily useful only for liquid or finely ground wastes. They both take precautions to prevent contaminating useful aquifers by carefully selecting the geologic formations into which the waste is injected. Hydrofracture disposal also uses a very insoluble waste form. Generally, hydrofracture involves injection of a mixture of waste and liquid grouting materials under high pressure into a deep layered rock formation such as shale. The injected material causes layers of rock to separate and the material forms flat "sheets" extending out from the injection well. The grout causes some surface uplift near the injection well.  1, fiche 2, Anglais, - hydrofracture%20disposal

Record number: 2, Textual support number: 2 CONT

Because of difficulty in transporting liquid wastes safely, the hydrofracture facility must be located near the source of the waste. A hydrofracture site requires large, generally impermeable(to nearby aquifers) layered formations that fracture horizontally. The surface area needed and visual impact of a hydrofracture facility are relatively small. Major barriers to nuclide release are the grout(waste form) and the geologic formation used. Perhaps the greatest problem with hydraulic injection is that there is little control of fracture propagation and it is not possible to define the final geometry of the grout/waste sheets from the surface.  2, fiche 2, Anglais, - hydrofracture%20disposal

Record number: 2, Textual support number: 3 CONT

Hydrofracturing would not be appropriate for Eldorado wastes because of the large volume of waste and the questionable ability to dry and pulverize it to the necessary fineness (40 mesh or smaller).  2, fiche 2, Anglais, - hydrofracture%20disposal

Fiche 2,  Justifications,  Français

Fiche 2,  Justifications,  Espagnol

Fiche 3,  Justifications,  Anglais

Record number: 3, Textual support number: 1 CONT

Because of difficulty in transporting liquid wastes safely, the hydrofracture facility must be located near the source of the waste. A hydrofracture site requires large, generally impermeable(to nearby aquifers) layered formations that fracture horizontally. The surface area needed and visual impact of a hydrofracture facility are relatively small. Major barriers to nuclide release are the grout(waste form) and the geologic formation used.  1, fiche 3, Anglais, - nuclide%20release

Fiche 3,  Justifications,  Français

Record number: 3, Textual support number: 1 OBS

Voir aussi «relâchement de radionucléides».  1, fiche 3, Français, - rel%C3%A2chement%20de%20nucl%C3%A9ides

Fiche 3,  Justifications,  Espagnol

Fiche 4,  Justifications,  Anglais

Record number: 4, Textual support number: 1 CONT

Because of difficulty in transporting liquid wastes safely, the hydrofracture facility must be located near the source of the waste. A hydrofracture site requires large, generally impermeable(to nearby aquifers) layered formations that fracture horizontally. The surface area needed and visual impact of a hydrofracture facility are relatively small. Major barriers to nuclide release are the grout(waste form) and the geologic formation used. Perhaps the greatest problem with hydraulic injection is that there is little control of fracture propagation and it is not possible to define the final geometry of the grout/waste sheets from the surface.  1, fiche 4, Anglais, - hydrofracture%20site

Fiche 4,  Justifications,  Français

Fiche 4,  Justifications,  Espagnol

Fiche 5,  Justifications,  Anglais

Record number: 5, Textual support number: 1 CONT

Because of difficulty in transporting liquid wastes safely, the hydrofracture facility must be located near the source of the waste. A hydrofracture site requires large, generally impermeable(to nearby aquifers) layered formations that fracture horizontally. The surface area needed and visual impact of a hydrofracture facility are relatively small. Major barriers to nuclide release are the grout(waste form) and the geologic formation used. Perhaps the greatest problem with hydraulic injection is that there is little control of fracture propagation and it is not possible to define the final geometry of the grout/waste sheets from the surface.  2, fiche 5, Anglais, - hydrofracture%20facility

Record number: 5, Textual support number: 2 CONT

At Oak Ridge, Tennessee, the US Department of Energy has used hydrofracturing in shale formations for disposal of some liquid wastes. However, monitoring revealed that radionuclides are moving from the hydrofracture facility faster than expected and that operation has been stopped.  3, fiche 5, Anglais, - hydrofracture%20facility

Fiche 5,  Justifications,  Français

Record number: 5, Textual support number: 1 OBS

Voir aussi «fracturation hydraulique».  2, fiche 5, Français, - installation%20de%20fracturation%20hydraulique

Fiche 5,  Justifications,  Espagnol