Introduction
Natural uranium, the basic raw material for nuclear fuels, contains 99.3 fertile 238U and 0.7 fissile 235U isotopes. The present fleet of some 440 operating nuclear power reactors and some 270 non-power research reactors mostly use fissile 235U as fuel. To a very limited extent, the fissile plutonium isotopes formed by the neutron capture of fertile 238U in a reactor is recycled in the form of mixed uranium plutonium oxide MOX or other fuels. Uranium is, therefore, the key raw material for...
Mine water treatment plant at the Banat mines site
The Banat mines were active during the 1954-1998 period. Discharged mine waters from the underground have relativelly low content of radionuclides but have to be decontaminated. The total average flow rate of mine and seepage waters needed to be decontaminated is about 2 500 m3 day with a maximum value of 3 300 m3 day in rainy periods. In present there are two treatment plants with projected daily water flow of 1 500 m3 , each one, known as Dobrei South - Lisava and Ciudanovita respectivelly....
M Tauchid Canada
I have renamed the president title to glorified observer because my job is basically observing. First, when you come to a big meeting like this you wonder, particularly for the organizer, if it is going to be a good and successful meeting. Listening to comments from the participants, it appears that it has been a great meeting. The interest, as reflected by the number of participants coming from different parts of the world, suggests that this probably is one of the most successful meeting in...
VV Shatalov AV Tarkhanov VA Boldyrev OI Knyazev
All-Russian Research Institute of Chemical Technology, Russian Federation Agency of Atomic Energy, Moscow, Russian Federation Abstract. Demand of world nuclear capacity for the first half of the 21st century is estimated for three growth cases, Low, Middle and High. The known conventional uranium world resources will last for the Low and Middle cases. At the High demand case it will be necessary to process all uranium stocks and resources. It can be achieved by improvement of each stage of...
New mines in the state of Jharkhand
Banduhurang Mine This deposit is the western extension of Turamdih mineralization, where part of the ore body outcrops at surface. It is a low-grade, large tonnage deposit. After the initial evaluation, the techniques of computerised ore body modeling and mine planning using SURPAC software was carried out. Open-pit mining method has been considered as the most favourable option. The pit limits were optimised using WHITTLE software and the layout of the mine as been finalized with all finer...
Lowering tails assay
The third approach to reducing the pressure on uranium to fill the supply gap is the use of lower-tails assay in the enrichment process. Variable-tails assay is nothing new. In the days of fixed commitment enrichment contracts, it was routine practice to use variable tails to provide additional product or change the amount of feed requirements. For example, with a fixed 1 000 swus and a final assay of 4.5 percent U-235, the amount of feed could be varied from a high of 1 640.0 kg U of natural...