First International Forum on the Decommissioning of the Fukushima - - PowerPoint PPT Presentation

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First International Forum on the Decommissioning of the Fukushima - - PowerPoint PPT Presentation

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First International Forum on the Decommissioning of the Fukushima Daiichi Nuclear Power Station 10 th /11 th April 2016 Session V Sellafield Waste Management Strategy Phil Hallington Sellafield Ltd 1 Background 2 Square Miles

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First International Forum on the Decommissioning of the Fukushima Daiichi Nuclear Power Station 10th/11th April 2016 Session V Sellafield Waste Management Strategy

Phil Hallington – Sellafield Ltd

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Background

  • 2 Square Miles
  • >200 nuclear

facilities

  • Significant inventory
  • Supporting nuclear

generation

  • Major national

priority

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SLIDE 3

Sellafield has more than 60 years of history…

1940s/50s

  • Nuclear build

begins

  • Initially a military

programme

  • Later civil

programme begins

1960s/70s

  • Waste stored

safely – pending treatment

  • Storage

capacity extended incrementally

  • Coarse

segregation of waste arising from process

  • Magnox

reprocessing starts

1980s

  • Main expansion
  • f site
  • Major waste

treatment focus

  • Environmental

impact substantially reduced

1990s

  • Commercialisation
  • f reprocessing —

Thorp comes

  • nline
  • Waste arising

from processes treated in ‘real time’

  • Product waste

forms compatible with disposal concepts

  • Decision taken to

end Thorp reprocessing

  • Vitrification of all
  • verseas Highly

Active Waste complete

  • Decommissioning

gathering pace

  • First sludge exports

from FGMSP

2000s

  • NDA formed
  • Stop start progress

in Decommissioning

  • Calder Hall ceased

generating power after 47 years in

  • peration

2010s

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Decommissioning Challenges

  • Material at risk
  • Large and uncertain inventories
  • Uncertain material conditions; original and current
  • Characterisation ranges from difficult to extremely challenging
  • Inadequate storage facilities
  • Uncertain design
  • Aging (~half-century or older)
  • Current condition and future service life unclear
  • Extended (decades) hazard removal terms
  • Complex and unprecedented tasks
  • Variable confidence in schedule

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Recent successes – Pile Fuel Storage Pond

Last skip of metal fuel removed Decanner removal

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Over 70% of the inventory safely retrieved in the past year

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IWM Principles – links with Government policy

Integrated Waste Management Objective:

  • To ensure that wastes are managed in a manner that

protects people and the environment, now and in the future, and in ways that comply with government policies and provides value for money.

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UK Waste Categories

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Managing Radioactive Waste

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Safety & Risk Reduction Avoid Minimise Reduce Re-use Recycle Energy Recover Abate Dispose

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Waste Management Strategy

  • Understand the arisings and therefore the options
  • Consider the impacts on
  • High hazard and risk reduction
  • Environment
  • ALARP/BAT
  • Costs
  • 10- 50 year look ahead
  • Geological Disposal Facility
  • 2040 for intermediate level waste
  • 2075 for high level waste
  • Legacy waste retrievals
  • We have continued to seek the best available approach
  • Spent fuel is not categorised as waste in the UK
  • Reprocessing waste handled in near real time
  • Potential for significant and targeted innovation
  • Challenge the paradigm
  • Technically rigorous solutions
  • Commanding broad support from Regulators and key

stakeholders

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Challenging the paradigm – an example

Baseline plan Alternative ILW Approach

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Innovative technologies

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10000 20000 30000 40000 50000 60000 70000 80000 90000 100000 Packages

Financial Year

PP14 Data - Cumulative ILW Arisings to 2120 Prior to Rework (excluding PCM)

MBGWS AGR Graphite/St Steel AGR Graphite to Class 2 Operations (MEP/WEP/WPEP) LP&S (incl. SWR) High Order Decom & Windscale ILW Low Order Decom & Windscale Piles Windscale (WAGR boxes) Decommissioning direct to GDF Current Decommissioning (no route) Contaminated Land Calder

Package = 4 drum stillage or 3m3 box

Understanding and planning

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Strategy enabling End State delivery

2013 2020 2030 2040 2050 2060 2070 2080 2090 2100 2110 2120 THORP MAGNOX Calder Others Lead time for POCO planning Lead time for waste route development SR&DP PFSP FGMSP MSSS PFCS

High hazard & risk reduction Operations Broadfront decommissioning

Decommissioning Operations

Broadfront decommissioning Broadfront decommissioning Includes Waste Treatment, Storage and Effluent Management Site Remediation DILWEP1 BUFT SDP BEP SPP1 P&E SWR PFCS TP DILWEP2 FILWEP2 WTC2 BEPPS-DIF Stores GDF Available for ILW GDF Available for HLW/SF SIXEP

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Risk Based Management Framework

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Regulation at Sellafield

  • Robust, independent regulation – ENFORCEMENT
  • Collaborative working to deliver hazard and risk reduction –

ENGAGEMENT & ENCOURAGEMENT

  • Demanding and effective Internal Regulatory function
  • Efficient delivery through “Engagement Week” model
  • Regulatory Interface Meeting
  • Transparency and Publication

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What next?

  • Unrelenting focus on maintaining nuclear safety and security
  • Successful transition completed – now wholly owned NDA

subsidiary

  • Driving fit for purpose solutions, such as
  • Pile Fuel Cladding Silo
  • Removal of ventilation stacks
  • Completion of Magnox reprocessing
  • Start-up of new HA Evaporator
  • Effective and Efficient spend of public money, delivering

lasting value

  • Integrated waste strategy is key to effective delivery

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