Projects for the remediation of contaminated territories

1. In 2002, a project was initiated at the Kurchatov Institute with the aim of remediating contaminated objects and sites [34]. The principal tasks of this project were the removal of the accumulated RAW, the decom­missioning of old repositories and the remediation of the contaminated territory. The volumes involved were evaluated at 4,000 m3 of SRAW,

20.0 m3 of contaminated soils, and RAW activity of up to 700 Ci. In 2006, the decontamination of 10 old repositories was completed. More than 3,400 m3 of SRAW with activity >500 Ci was removed: of this, over

3. m3 was removed for long-term storage at MosNPO ‘Radon’, and 300 tons of metal low-level waste were sent for further melting at the ‘Ekomet-S’ facility.

2. A project to examine and decontaminate the buildings of Moscow’s ‘Zavod Polimetallov’ plant was carried out between 1999 and 2003. There were 32 buildings and more than 9,000 m2 of land. Decontamina­tion of 17 buildings revealed an RAW volume of over 400 m3, with radionuclides composed of 232Th and 226Ra.

3. The radiochemical laboratory of the Vernadsky Institute of Geochem­istry and Analytical Chemistry (Russian Academy of Sciences) was in use from 1966 until the end of the 1980s. The contaminated objects at this site were seven hot cells with an operating area of 240 m’ ’ as well as 15 auxiliary premises, and a ventilation system. After a partial decon­tamination and dismantling of the equipment, it was decided to preserve the premises for 50 years.

4. The JSC ‘Koltsugtsvetmet’ (Vladimir Region) contained a workshop for the production of luminescent substances based on soluble 2 26Ra bro­mides. This facility was built and put into operation in the mid-1950s. The two-storey building with a total area of 1,200 m’ was decontami­nated; the building and ventilation system were then dismantled and the surrounding territory remediated.

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