Description: technologyComment of uranium mine operation, open cast (RNA, RoW): Average conditions in early 1980s. technologyComment of uranium mine operation, underground (RNA, RoW): Average conditions in early 1980s.
Types:
Text {
text_type: Report,
}
Comment: This is a market activity. Each market represents the consumption mix of a product in a given geography, connecting suppliers with consumers of the same product in the same geographical area. Markets group the producers and also the imports of the product (if relevant) within the same geographical area. They also account for transport to the consumer and for the losses during that process, when relevant. This is the market for 'uranium ore, as U', in the Global geography. Transport from producers to consumers of this product in the geography covered by the market is included. uranium ore, as U' is a nuclear fuel. It is used as a solid fuel and is sourced from uranium mines, open cast or underground. Its main applications are in the following sectors: nuclear power plants. This market is supplied by the following activities with the given share: uranium mine operation, open cast, RNA: 0.100925868687875 uranium mine operation, underground, RNA: 0.388059965104881 uranium mine operation, open cast, RoW: 0.144688166399844 uranium mine operation, underground, RoW: 0.3663259998074 generalComment of uranium mine operation, open cast (RNA, RoW): The data on radioactive emission to air and water are from old references, but the range of values is relatively small. Only particle emission (here assumed dust >10 micrometer) to air is explicitly given in the used reference; emissions from combustion are implicitly accounted for through the energy requirement modules. The energy requirements are roughly divided into two: diesel in building machines to take into account the excavation of overburden with a mass ratio to product U3O8 of 30:1; and diesel in diesel generator for electricity uses, mostly for pumping water. It is assumed that the overburden and the ore piles that are not transfered to the mill plant, are dumped back in the pit. Reclamation of the pit is not included in the module because of lack of information. However, by far the largest masses of waste originating in mining are found in the mill tailings. [This dataset was already contained in the ecoinvent database version 2. It was not individually updated during the transfer to ecoinvent version 3. Life Cycle Impact Assessment results may still have changed, as they are affected by changes in the supply chain, i.e. in other datasets. This dataset was generated following the ecoinvent quality guidelines for version 2. It may have been subject to central changes described in the ecoinvent version 3 change report (http://www.ecoinvent.org/database/ecoinvent-version-3/reports-of-changes/), and the results of the central updates were reviewed extensively. The changes added e.g. consistent water flows and other information throughout the database. The documentation of this dataset can be found in the ecoinvent reports of version 2, which are still available via the ecoinvent website. The change report linked above covers all central changes that were made during the conversion process.] generalComment of uranium mine operation, underground (RNA, RoW): The data on radioactive emission to air and water are from old references; the range of values spans some order of magnitudes for uranium, Ra-226, and Th-230 releases to water, and it is about one order of magnitude for Ra-222 to air. Emission of uranium to air is given separately from total particles; these are assumed as dust >10 micrometer; emissions from combustion are implicitly accounted for through the energy requirement modules. It is assumed that the overburden and the ore piles that are not transfered to the mill plant, are dumped back in the mine. Reclamation of the waste remaining on surface is not included in the module because of lack of information. However, by far the largest masses of waste originating in mining are found in the mill tailings. [This dataset was already contained in the ecoinvent database version 2. It was not individually updated during the transfer to ecoinvent version 3. Life Cycle Impact Assessment results may still have changed, as they are affected by changes in the supply chain, i.e. in other datasets. This dataset was generated following the ecoinvent quality guidelines for version 2. It may have been subject to central changes described in the ecoinvent version 3 change report (http://www.ecoinvent.org/database/ecoinvent-version-3/reports-of-changes/), and the results of the central updates were reviewed extensively. The changes added e.g. consistent water flows and other information throughout the database. The documentation of this dataset can be found in the ecoinvent reports of version 2, which are still available via the ecoinvent website. The change report linked above covers all central changes that were made during the conversion process.]
Origin: /Bund/UBA/ProBas
Tags: Uran ? Uranlagerstätte ? Mining and quarrying ? Mining of metal ores ? Mining of non-ferrous metal ores ? Mining of uranium and thorium ores ?
License: unbekannt
Language: Deutsch
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