Russia will soon start storing spent fuel in a new centralized ‘dry’ interim storage facility (ISF) at Zheleznogorsk, near Krasnoyarsk. The first phase of the facility, for RBMK-fuel, was completed December 2011, and the first fuel was planned to in March 2012. Reprocessing has always been a major part of waste management. The Russian Federation (and its predecessor the Soviet Union) is the champion of sea dumping. It dumped low and intermediate level waste in Arctic Seas (1964-1991): liquid radioactive waste in Arctic Seas (1959-1991); objects with spent nuclear fuel in Arctic Seas (1965-1981); liquid (1966-1992) and solid (19680-1992) waste in the Pacific Ocean; liquid waste in Barents Sea and Far Eastern Seas (1992) and finally, liquid radioactive waste in Sea of Japan (1993).)(*01). The Russian state nuclear corporation Rosatom is responsible for waste management, but in March 2012, a National Operator for management of radioactive waste was established in accordance with the “Federal Law on the Radioactive Waste management” signed in summer 2011.(*02)

Interim storage and reprocessing
Russia needs to build a centralized long-term dry storage due to the limited capacity of existing storage pools. In 19 December 2011, the first phase of a centralized storage facility has been completed at the Mining and Chemical Combine (MCC) at Zheleznogorsk. The initial stage of the facility will be used for storing 8129 metric tons of RBMK fuel from Leningrad (4 units), Kursk (5) and Smolensk (3 reactors). The used fuel from these plants is currently stored in on-site cooling pools, but these are reaching full-capacity, and spent fuel discharges are expected to exceed on site storage capacity.(*03)
The second stage of the facility, for VVER-fuel, is now beginning. Later, used VVER-1000 fuel from reactors at the Balakovo, Kalinin, Novovoronezh and Rostov plants will also be stored at the facility. VVER fuel has already been sent to Zheleznogorsk for storage in water pools. The ISF – measuring some 270 meters in length, 35 meters wide and 40 meters high – will ultimately hold 38,000 tons of used RBMK and VVER fuel. The fuel will be stored in the facility for up to 50 years,(*04) during which time substantial reprocessing capacity should be brought online. Currently, Russia reprocesses about 16% of the used fuel produced each year, but Russia aims to reprocess 100% in the year 2020.(*05)

In the long-term, a geological repository for high-level radioactive waste is planned. No waste repository is yet available, though site selection is proceeding in granite on the Kola Peninsula. In 2003 Krasnokamensk in the Chita region 7000 km east of Moscow was suggested as the site for a major spent fuel repository.(*06) Since the early 1970s, Minatom (Ministry of Atomic Energy) has been studying various sites and geologic formations to determine their suitability for use in the construction of underground radioactive waste isolation facilities. According to the regional approach that has been developed in Russia with regard to the selection of geologic sites for permanent
isolation, it is most expedient to have the burial sites near the waste sources. Purposeful research for the high-level waste geological isolation has been done in the two areas where the Mayak Production Association (Chelyabinsk Oblast) and the Mining-Chemical Complex are located. After the results of all research studies were analyzed, two sites nearby Mayak reprocessing plant were selected as top priorities.
A second Russian geological isolation site is the Nizhnekansk granitoid massif, one of the largest massifs in central Siberia, very close to the MCM. It is composed of various types of magmatic and metamorphic rock. Here, also two specific sites were selected. In 2005, however, because of a lack of financing, work on the study at the two Nizhnekansk sites was halted. (*07) Then in 2008 the Nizhnekansky sites were on the table again as a site for a national deep geological repository. Rosatom said the terms of reference for the facility construction would be tabled by 2015 to start design activities and set up an underground rock laboratory. A decision on construction is due by 2025, and the facility itself is to be completed by 2035.(*08)

Although the import of foreign fuel for the purpose of final disposal is prohibited, much Russian-origin spent fuel is imported. In the 1990s contracts for fuel for reprocessing, has been signed with Ukraine, Bulgaria (both for spent fuel from nuclear power plants), Uzbekistan, Kazakhstan, Czech Republic and Latvia (spent fuel form research reactors). The contracts envisage the return of the solidified radioactive waste resulting from the reprocessing. (*09) During Soviet times, spent fuel from VVER-440 reactors in Finland, Hungary, Bulgaria and Slovakia was shipped to Mayak for reprocessing. (*10)
The reprocessing waste from Russian-origin fuel can be left in Russia. Most of the Russian-origin fuel that Russia has repatriated has not been reprocessed in Russia’s existing reprocessing plant, however, but is in long-term storage pending the construction of a larger reprocessing plant.(*11

Sources
*01- IAEA: Inventory of radioactive waste disposals at sea, IAEA-Tecdoc-1105, August 1999
*02- RIA Novosti, National Operator for radioactive waste management has been appointed, 2 April 2012
*03- Nuclear Fuel: Russia on track to complete spent fuel facility by 2015, 6 February 2012, 5
*04- World Nuclear News: Russia commissions fuel storage facility, 30 January 2012
*05- Nuclear Fuel, 6 February 2012
*06- World Nuclear Association: Russia’s Nuclear Fuel Cycle, March 2012
*07- Tatyana A. Gupalo: Creation of Underground Laboratories at the Mining-Chemical Complex and at Mayak to Study the Suitability of Sites for Underground Isolation of Radioactive Wastes, published in: An International Spent Nuclear Fuel Storage Facility,
The National Academies Press, 2005. p.240-247
*08- World Nuclear Association: Russia’s Nuclear Fuel Cycle, March 2012
*09- Russian Federation: The National Report of the Russian Federation on Compliance with the obligations on the Joint Convention on the Safety of Spent Fuel Management and the Safety of Radioactive Waste Management, October 2008, p.97-98
*10- International Panel on Fissile Materials: Managing nuclear spent fuel from nuclear power reactors, 2011, p.73
*11- Bulletin of the Atomic Scientists, Managing nuclear spent fuel: Policy lessons from a 10-country study, 27 June 2011