Location: RU - Russia
The material and energy requirements for construction have been roughly estimated on the basis of the data from an old US reference and scaling them down by the ratio of the capacities (centrifuge process is modular, therefore in first approximation linearity can be assumed for requirements). It is assumed that 75% of reinforced concrete is dumped as non-contaminated waste from decommissioning. Although Russian facilities have higher capacity, the original dataset developed for URENCO plants has been directly used herewith for the previously explained reason, with the only difference of electricity requirements from the Russian mix. This mix has been approximated using existing ecoinvent v2.0 electricity datasets for Europe.
[The full documentation of this dataset was originally provided in the corresponding ecoinvent report from the Swiss Centre for Life Cycle Inventories, which is accessible for free to guests and users of ecoinvent version 2 (https://www.ecoinvent.org/login-databases.html). The dataset may subsequently have been subjected to central changes to the database, as described in the respective change report for each new release.]
Undefined unit processes (UPRs) are the unlinked, multi-product activity datasets that form the basis for all of the system models available in the ecoinvent database. This is the way the datasets are obtained and entered into the database by the data providers. These activity datasets are useful for investigating the environmental impacts of a specific activity (gate-to-gate), without regard to its upstream or downstream impacts.