Probably approx. 2,5.109 Bq.
Probably approx. 40 kg of enriched uranium.
CANDU Reactors are specifically designed such that they do not require enriched uranium, and can operate entirely on naturally-occurring uranium. A CANDU design is generally used by parties that do not desire uranium enrichment facilities, due to the cost of those facilities. That said, a CANDU reactor CAN use enriched uranium, they are fully capable of supporting that fuel type.
A typical PWR has fuel assemblies of 200-300 rods each, and a large reactor would have about 150-250 such assemblies with 80-100 tonnes of uranium in all. It produces electric power in the order of 900 to 1500 MW.
Natural uranium has about 0.7 percent U235, this has to be increased to about 4 percent for use in natural water moderated reactors. The obtaining of uranium from mining and refining is described in the document linked below
Uranium is extracted from the earth by mining; after this it is processed by chemical/metallurgical procedures in useful materials as nuclear fuels, nuclear weapons, chemicals for the industry and laboratory etc.
Probably approx. 40 kg of enriched uranium.
In light water reactors it is uranium dioxide with the uranium enriched to 4-5 percent
Enriched uranium is an uranium with more than 0,7 % uranium 235.
- the energy released from enriched uranium is higher compared to natural uranium- the amount of uranium needed for a reactor is lower- research reactors work only with enriched uranium- atomic bombs have highly enriched uranium or plutonium
Most nuclear power plants use enriched uranium as a nuclear fuel. Uranium-235 is the most commonly used isotope for nuclear fission reactions in nuclear power plants, where the uranium atoms split, releasing energy.
Plutonium and enriched uranium are different materials.Enriched uranium is uranium with a concentration of the isotope 235U greater than the natural concentration of 0,7 %.
A Wikipedia article (see link below) gives the concentration of uranium in ore as 0.01 to 0.25 percent, which is a wide range. If we take 0.1 percent as typical, then 1 tonne (1000Kg) of ore would produce 1 Kg of uranium. This is natural uranium, which is normally enriched by about six times to produce suitable enriched uranium for fuel, so you can say that about 6 tonnes of ore would be needed to give 1 Kg of enriched uranium, but there is considerable variation of this from one source of ore to another
The new fuel is uranium dioxide, enriched to about 4 percent U-235
Uranium oxide, enriched to about 4 percent U-235
Normally Uranium enriched to about 4 percent U-235, in the form UO2
Uranium needs to be enriched to about 3-5% U-235 for use in commercial nuclear power reactors. This enrichment level allows for a sustainable nuclear reaction that can generate electricity efficiently.
Uranium is enriched in the isotope uranium-235, producing uranium-238 as waste.