Status of the CRAFT Project Working Groups:

Transcription

1 Technical Meeting of the Complimentary Safety Reports: Development and Application to Waste Management Facilities Status of the CRAFT Project Working Groups: RADON Facilities IAEA Technical Meeting October, 28-31, 2014, IAEA

2 Content Object (Radon-type facilities) Group objectives Scope Input Work Plan and Status 12 ОJune,

3 Meetings During CRAFT Plenary meeting (June 2013): WG (October, 2013) WG (July, 2014) Final CRAFT PM (October 2014) 3

4 RADON facilities The system of RADON enterprises was established the USSR in early sixties of the XX th century collection, transportation, processing and disposal of LILW wastes and DSRS, generated or used in medicine, research institutions, various branches of industry 35 Radon facilities in the Soviet Union 16 of them in the Russian Federation 12 ОJune,

5 RADON facilities 1 - Moscow «Radon» Facility 2 - Leningrad «Radon» Facility 3 - Volgograd «Radon» Facility 4 - Nizhny Novgorod «Radon» Facility 5 - Grozny «Radon» Facility 6 - Irkutsk «Radon» Facility 7 - Kazan «Radon» Facility 8 - Samara «Radon» Facility 9 - Murmansk «Radon» Facility 10 - Novosibirsk «Radon» Facility 11 - Rostov «Radon» Facility 12 - Saratov «Radon» Facility 13 - Sverdlovsk «Radon» Facility 14 - Bashkirskiy «Radon» Facility 15 - Chelyabinsk «Radon» Facility 16 - Khabarovsk «Radon» Facility 12 ОJune,

6 RADON facilities Typical historical repositories are vaults below the ground level with the volume from 200 to 9000 m 3, basement made of concrete plates, walls made of monolithic reinforced concrete or concrete blocks, divided with concrete or wooden walls into cells (sections), the top is covered with reinforced concrete plates, sand and waterproof asphalt layer 12 ОJune,

7 RADON facilities depth 3-6 m, width 5,5 up to 32 m length 16 up to 100 m. 12 ОJune,

8 Disposal/Storage Radon facilities evolution Load hatches Layer-on layer cementation Container use Above ground facility

9 Radon facilities 9

10 Radon facilities Designed and operated as disposal facilities for institutional LILW without intention of the waste retrieval Now do not fit with the safety requirement for near surface disposal (long lived alpha emitters, high active DSRS etc.) Don t fit with the safety requirements for long term storage (waste package inspection, retrievability etc.) 10

11 Radon facilities Operators of RADON type facilities are obliged to perform safety assessment and upgrade safety Decision making depends not only from the safety issues but from socio-political, technical and economic aspects Most common decisions include: decommissioning of facility upgraded storage facility upgraded disposal facility Measures are often considered: partial or complete RW retrieval and conditioning reconstruction 11

12 Main statements of Federal Law «On Radioactive Waste Management» Basic terms definition RAW classification special RAW and Retrievable (disposable) RAW classes of Retrievable RAW (based on disposal option) For Special (nonretrievable) RAW: emplacement site and site for conservation Deep well injection of liquid LLW and ILW on operating sites 12

13 Initial Registration and Survey of RAW Storage Facilities Storage Facility Survey Special RAW Site of sraw Emplacement EBS Upgrade, Additional Barriers Site of sraw Conservation Retrievable RAW Waste Retrieval If meet safety requirements On Site Disposal Treatment and Conditioning Interim Storage Transportation Disposal in Regional Disposal Facility

14 Regulations of VLLW, LLW, ILW disposal The criterions for classification of RAW are given in the Decree 1069 from by the Government of the Russian Federation «On criteria for classifying solid, liquid or gaseous waste to radioactive waste, criteria for classifying radioactive waste to special and removable RAW and criteria for classification of removable RAW». 14

15 Moving away On site disposal Decree 1069 Criteria for classifying radioactive waste to special and retrievable RAW Special RAW RAW, including: RAW generated: in result of implementation of the state program of armaments and state defense order In result of the use of nuclear weapon for peaceful purposes In result of nuclear and (or) radiation accident in nuclear facility liquid RAW, accumulated in surface water-storage facilities, totaling more than m 3, commissioned before the entry into force of the Federal Law "On the treatment of waste...", as well as the sediments of the storage reservoirs meet the following criteria: Retrievable RAW Other RAW that hasn't been assigned to special RAW 1 The collective effective dose for the entire period of the potential danger The risk of potential exposure Moving away > On site disposal 2 The cost of moving away, processing, conditioning, transportation to disposal facility and disposal of radioactive waste > The size of the possible harm to the environment The cost of disposal of radioactive waste, including conversion Site of sraw to RAW disposal facility, its operation and closing, its safety over the period of the potential danger 3 RAW storage and its sanitary protection zone located outside the boundaries of settlements, protected areas, coastal protection strips and water protection zones of water bodies, and other security protection zones

16 Regulation of RAW Management in Russia Safety Fundamentals SF-1 Safety of Radioactive Waste Management. General Provisions NP Predisposal RAW management. General Safety Requirements GSR, part 5 Disposal of Radioactive Waste. Special Safety Requirement SSR-5 Collection, treatment, storage and conditioning od Solid RAW. Safety Requirements. NP Collection, treatment, storage and conditioning od Liquid RAW. Safety Requirements. NP RAW WAC for Disposal NP Gaseous RAW Management. Safety Requirements. NP Disposal of radioactive wastes. Principles, criteria and general safety requirements. NP Near-surface disposal. Safety Requirements WS-R-1 Near-surface disposal of radioactive waste. Safety requirements. NP

17 Working Group Objectives to adopt the safety assessment methodology presented in the GSG-3 The Safety Case and Safety Assessment for the Predisposal Management of Radioactive Waste to the RADON type facility needs to develop illustrative test case for applying this methodology to historical waste retrieval from RADON type facility using SAFRAN tool to provide Member States with the supporting information for decision making regarding the future of existing historical RADON type facilities 17

18 Scope Typical small near surface RADON type long term storage facility for solid institutional LILW Waste retrieval operations 18

19 Input Results of the SADRWMS project SAFRAN tool GSG-3 Information about Murmansk Facility ( RosRAO ) and activity for the waste retrieval 19

20 Object 20

21 Object 21

22 Object 22

23 Object 23

24 Object Wastes are not conditioned and in most cases are packed 24

25 Object There are DSRSs in transport containers, few wooden boxes with unknown cemented waste, packages with ion-exchange resins and others. Vault No1 Legend Waste Number. Б1 Б10 Cylindrical metal containers 10 К1 К10 Rectangular metal containers 10 ЯБ1 ЯБ6 Concreted and partially damaged wooden boxes 6 Ф Box with air filters 1 Шары Blocks of gamma-ray sources ~ 40 - Unidentified objects 6

26 Object Rectangular metal containers Concreted and partially damaged wooden boxes Blocks of gamma-ray sources BGI-75 Blocks of gamma-ray sources E-1M

27 Object Construction of temporary protecting building 27

28 Gates Wells Storage vaults

29 Work areas A - canyon with waste; B - area for loading large packages into transport container; C - area for monitoring small packages, placement of BGE on transport rack and putting them into transport container; D - safety area (with radiation protection); E - area for non-permanent worker location out of work areas; F - area for loading filled containers on special transport.

30 The waste retrieval schemes Check of holding devices of packages Containers, boxes Sling Moving of packages Placing into big transport container Top cord uncoupling Radiation control and monitoring Gamma Eradiation Blocks (BGE) Check of holding devices of blocks Sling Moving of blocks Placing onto transport rack Placing into middle transport container Top cord uncoupling Radiation control and monitoring

31 Outside impact Table. Individual exposure dose of population for different distances, Sv. Weather category Distance, m Control limit ClassA 4.831E E E-7 1.0E-4 ClassB 2.150E E E ClassC 7.401E E E ClassD 2.001E E E ClassE 5.691E E E ClassF 2.480E E E

32 Results Methodological basis of the SA: GSG-3 Actual practice in Russia Safety Assessment Report for the waste retrieval from RADON type Facility Assessment itself including calculations Interpretation of the Report into English Input into improvement of the SAFRAN Tool 32

33 Participant list Alexander Smetnik, Russia (TSO) Nikolay Anisimov, Russia (TSO) Andrey Guskov, Russia (TSO) Dmitry Hofman, Sweden (RO) Rodolfo Avila Sweden, (RO) Valdas Ragaisis, Lithuania Valery Bochkarev, Russia (TSO) Alexey Tkachenko, Russia (Operator) Merle Lust, Estonia (TSO) Eduard Nikitin, Russia (TSO) 12 ОJune,

34 This week working plan Look back, discuss and agree the structure of the WG report Discuss the safety assessment results Discuss and agree on finalising the work plan 34

35 Additional and specific THANKS to Monika Kinker and Malgorzata Sneve Thank you for your attention 35