Andreeva Bay Facilities for SNF Management

CEG IAEA Workshop - February 2010

Presentation Outline

� Technical challenges at Andreeva Bay � Strategic objectives and principles applied to the solution� Measures undertaken 2003 – 2009� Planned works in 2010� Complex of facilities for SNF management, plans and progress

� DSU Enclosure and SNF handling facility� Cask accumulation pad� Maintenance and storage facility� Pier improvements

� Conclusions

Failed SNF Storage PondDSU 2A, 2B, 3A

RW Area

Site Entry

Pier

N

Challenges of the Andreeva Bay Site

SNF Challenges: Quantity and Condition

� Huge quantity 22,000 SFAs

� Limited availability of records

� Presence of contaminated water

� Objects and debris on canisters

� DSU cells irregularly spaced and angulated

� High radiation

� Fuel canisters• Different types• Damaged• Corroded• Breached • Stuck in cell• Stuck SFA

Strategic Objectives for SNF Management

� Remove all fuel from Andreeva Bay as soon as possible

� Transport by ship to Murmansk and by rail to Mayak for reprocessing

� Non-reprocessable fuel to be stored at Atomflot

Principles to be applied to the solution

Safety and security� Operator’s personnel� Public (& public perception)� Environment� Security

Primary requirements� Physical protection measures� Radiological isolation using containment and shielding� Avoidance of criticality� Nuclear materials accountancy

Principles to be applied to the solution

SNF process requirements� Where possible, SFAs will be placed into new canisters � SFAs that are stuck in canisters will be over-packed� SNF retrieval and repackaging processes from the DSUs will be carried out within the

DSU Enclosure� New canisters will be placed into certified transport casks (TUK 18 or TUK 108) at the DSU

Enclosure� Casks will be moved to a temporary location - cask accumulation pad located near the Pier� Casks will be transferred by a Pier crane onto a transport ship� Radwaste management facilities will manage all waste generated by the SNF retrieval

operations� Canisters will be prepared and active equipment maintained in a separate facility away from

the DSU Enclosure� External infrastructure will be provided to support SNF and RW management facilities

including roads, services/utilities etc.

Investigations, surveys and analysis

� Hydrological survey across the site and analysis of results� Radiological survey of the site� Groundwater movement� Leak tightness surveys of the DSUs� Radiological and visual surveys of the DSUs� Sampling and analysis of water from the DSUs� Fuel and canister corrosion assessments� Criticality analysis� Building condition and utility surveys

� SNF management strategy studies and development

Radiation Safety Management

� Two sanitary passes� Emergency preparedness

and monitoring equipment� ASKRO monitoring system

� Two decontamination pads

� Refurbishment and equipment for the Radiological and Chemical Analysis Laboratory

Past and Present State of DSU 3A

Temporary weatherproof cover (Present State)

Exposed concrete beams over DSU 3A with bitumen seal in 2002 (ingress of water)

Installation in 2004

Radiological Isolation of the DSUs

Protruding plugs and uneven surface over DSU 2B before 2008Development

trials for horizontal shielding in 2008 - 2009

Shielding Installation in DSU 2B

Installation of shielding & light caps / spacers

Horizontal shielding in DSU 2B Completed in 2009

Radiological Isolation of DSU 2A and Old Casks

Condition of DSU 2A before horizontal shielding in 2008

Shielding installation Completed in 2009

µSv/hµSv/h

Below the Weatherproof Cover of DSU 3A

Present state above and below concrete beams in DSU 3A

Current Radiological Condition of DSU 3A

Peak radiation dose over concrete beams 3 mSv/hPeak radiation dose under concrete beams 42 mSv/h

Robotic Equipment and Sanitary Control Modules

Sanitary Control Modules for installation of horizontal

shielding on DSU 3A in 2010

Concrete beam removal using HIAB700E-9 crane-manipulator

Dismantling machine BROKK 90

Complex of Facilities: Site Arrangement Plan

SNF Management FacilitiesRadwaste Management FacilitiesExisting StructuresAncillary Support Structures

Old Buildings Demolitions and Stabilisation

Old LRW Facilityadjacent to DSUs

(planned site for new DSU enclosure)

Removal of the old Pier(and refurbishment of existing Pier)

Old Laundry(planned site for new maintenance

facility)

Old Decontamination Facility (planned site for new maintenance

facility)

Old SNF Pond Store -

Stabilisation

SNF Retrieval and Loading - Process Schematic

New Cask Accumulation Pad Pier & Pier Crane

Road Rail Ship To Murmansk

SNF Retrieval and Canister Loading in new DSU enclosure TUK Loading Annex

Road

New DSU Enclosure and SNF Handling Facility

2B 2A

3AMain Hall - SFA Retrieval & Canister Loading

TUK Preparatory & Loading Annex

New DSU Enclosure and SNF Handling Facility

Ground Preparation for Construction of DSU Enclosure

B1 & Access’RemovedB1 & Access’RemovedB1 & Access’RemovedB1 & Access’Removed DSU Enclosure

Pre-Works (Planned 2010)• KPM 40 Crane &

Foundations • Underground store• Tank 2V• Tank 3B• Services Corridor• Ground reduction

KPM 40 Crane, rails and foundations

Old LRW Facility and Access Corridors removed in 2006

Pre-works in DSU area for Construction of DSU Enclosure

Above: Service corridorFar Left: KPM 40 CraneLeft: Tanks 2V and 3B

New Store, Radioactive Equipment Decontamination & Maintenance and Repair Workshops

Mechanical & Electrical WorkshopsActive Equipment Decontamination & Maintenance

Storage Facility

Construction of New Maintenance Workshop

View on Arrow ‘A’February 2010

A

B

View on Arrow ‘B’October 2009

New Cask Accumulation Pad

Plan at Ground Floor

Sectional Elevation

Pier: SNF & Radwaste Movement Plan

Plan View

SNF Management Design Solutions

� Other Facilities and Equipment Supporting SNF Management� TUK Road Transport Vehicle and Rail Trolley System� Solid Active Waste Handling/Processing Facility and VLLW compound� Active Liquid Waste Handling/Processing Facility� Infrastructure, roads, services and ancillary facilities� Carrier Ship for Radwaste and SNF

Conclusions and Recommendations

� The solution for SNF management at Andreeva Bay is developed and endorsed by all stakeholders

� On-site improvements for the safer management of the SNF have already been accomplished by the Russian Federation with assistance from international donors

� Implementation of the complex of facilities for removal of SNF from the site is planned for completion in 2014

� The facilities for the removal of SNF needs to be supported by the provision of basic utilities and infrastructure, radwaste management facilities and off-site transport

� It will be necessary to optimise the regulatory, management and administrative processes to achieve better rate of progress

� Prioritise tasks to ensure the solution for removal of all the SNF from Andreeva Bay is completed as soon as possible and in the most cost effective way

AcknowledgementsNuvia works on behalf of the UK Department of Energy and Climate Change (DECC) to manage projects under its Global Threat Reduction Programme as part of the G8 Global Partnership and provides grant aid to Russia for the improvement of SNF management at Andreeva Bay.

This presentation makes reference to work funded by other donors to the Andreeva Bay project in addition to substantial contribution by DECC, namely nation states of Italy, Norway and Sweden and the international programmes of the Northern Dimension Environmental Partnership Support Fund (NDEP) managed by the European Bank of Reconstruction and Development (EBRD), and the Technical Assistance to the Commonwealth of Independent States (TACIS) managed by the European Commission’s Joint Research Centre.

Thank youNick McAtamney