Update Presentation to Supply Chain

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(No Transcript)
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Low Level Waste Treatment

• Update Presentation to Supply Chain

Date April 08
NDMPG Sellafield
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Presentation

• Overview of the low level waste challenge at
  Sellafield
• Stakeholder engagement process to date
• Feedback on Best Practicable Option Workshops on
  oils, metals, process waste and asbestos
• Overview of forthcoming high volume low activity
  waste meetings
• Conceptual Sellafield waste treatment facility
• Way forward

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The scope of the challenge

• Oil 250m3 at Sellafield, 100m3 at Calder Hall
  annual arisings of 40m3/yr
• Ferrous Metals 200,000 tonnes
• Mercury 0.7 tonnes at Sellafield
• Lead 6,000 tonnes at Sellafield
• Process waste typically 7000m3 per annum
  generated
• Asbestos 12,000 tonnes at Sellafield
• High volume/low activity material including
  gt1,000,000 m3 of concrete
• The potential future capacity of the Low Level
  Waste Repository (LLWR) is estimated at 750,000m3
  subject to authorisations

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Low Level Radioactivity on the Waste
LLW usually disposed of to the repository near
Drigg
LLW
Typical Sellafield waste activity range
VLLW disposal to specified landfill
VLLW
Substances of Low Activity this material is
exempt from specific regulatory control
SoLA
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Engagement Process to date

• September 2006 Concept discussions with NDA
  regulators
• December 2006 LLW Waste Symposium to share
  concept and ideas with stakeholders. Initial
  feedback
• Jan Sept 2007 Local engagement with
  individual groups
• November - March 2008 - Complete BPEO workshops

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Where we are
Development
Framing
Evidence
Issues Identification and Exploration
Draft Strategy and Project Deployment
Scoping and Process Design
Technical Analysis
BPO Report Best Practice Commercial Issues
BPEO Waste Workshops Nov07- Feb08
Sellafield LLW Symposium December 2006
2008 onwards
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What we are considering at the BPEO workshops

• Which waste to manage
• Sellafield only
• Sellafield and stocks from other nuclear
  facilities
• Waste from non nuclear sources

• Where to deal with the waste
• Sellafield
• UK facility
• Overseas

• What to do with the waste
• Reuse
• Recycle
• Treatment
• Direct disposal

Note Sellafield Site Licence Company has a
remit only to consider the issues directly
relevant to the Sellafield site
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BPEO Programme flow sheet
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Report from BPEO Workshops

• Attended by cross section of stakeholders
  employees, community stakeholders, supply chain,
  industry stakeholders, members of the public and
  regulators/NDA
• Run as 2 workshops one for employees and one for
  external stakeholders
• Typically 30 40 attendees

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Contaminated Oil BPEO workshop

• General points raised
• Treat using both thermal destruction and
  encapsulation
• Seek synergies with treatment options for other
  waste forms
• Treat waste at Sellafield

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Contaminated Metals BPEO workshop

• General points raised
• Treat using range of technologies
• Treatment for two purposes
• Reusing metal
• Volume reduction for disposal at LLWR
• Treat waste at Sellafield

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Process Waste BPEO workshops

• General points raised
• Continue to develop Waste Minimisation and Sort
  Segregation options
• Thermal destruction gives a significant volume
  reduction compared with current compaction
  encapsulation process
• An incineration option will present a stakeholder
  acceptance issue

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Asbestos Waste BPEO workshops

• Quantities of LLW are small following
  characterisation
• Calder Hall waste to be disposed vie land fill
• Only high temperature processes are suitable for
  destruction
• Consider synergies with other waste treatments
  for future arisings

Asbestos ceiling tiles
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Activities Definitions VLLW
LLW usually disposed of to the repository near
Drigg
LLW
Typical Sellafield waste activity range
HVLA maximum on site disposal limit 37 Bq/g
VLLW disposal to specified landfill
VLLW
Substances of Low Activity this material is
exempt from specific regulatory control
SoLA
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Where are we going/vision 5 Years

• Demolition material Routes out
• - Store
• Routes out - Land fill (Dispose)
• - Roads
• - Sea defences Re use
• - Others
• Store Clesa - (Dispose)
• - Stock Pile On site Re use on site
• - Off site

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A Sellafield Option

• Implementation of integrated Low Level Waste
  treatment through a Waste Treatment Park
• Hub and spoke model being developed with Sort and
  Segregate hub and treatment options in the
  spokes.
• Treatment plants could be Metal Decontamination,
  Metal Smelting, Process Waste Thermal Plant or
  high temperature plasma type plant
• Two possible sites at Sellafield identified
• Subject to planning and regulatory authorisation

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Site Locations of prospective treatment plants
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LLW Feed
CONTAM SOILS PROCESS WASTES ASBESTOS
HUB SORT SEGREGATE
PLASMA
OILS
METAL DECONTAMINATION
INCINERATION
METAL SMELTING
CHP
DIRECT DISPOSAL TO LLWR
POWER
OUT TO MARKET
RECYCLE TO NUCLEAR
STEAM
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Risks and challenges

• Funding site priorities will mean a 2015
  start, PFI could accelerate this
• Acceptability of Thermal Treatment which is a
  feature of many of the options smelting metal
  or incinerating process waste
• Planning and permitting
• Waste treatment of some waste forms in isolation
  will not be economically viable oils and
  asbestos

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Way forward

• March 2008 - Review output of BPEO workshops
• April 2008 onwards develop project for the
  treatment of Low Level Waste
• Development of Low Level Waste strategy
• Development of business cases Sellafield only
• Development of business case for Nuclear
  Opportunity
• Winter 2008/09 - Project initiation

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Opportunities

• Synergies of waste treatment for example
• Treating oils and process waste in a single
  incinerator plant
• Treating oils, process wastes and asbestos in a
  high temperature plasma type plant
• Reuse of contaminated metals by manufacturing
  waste flasks on site used for intermediate
  level waste
• Use of HVLA waste in landscaping or other build
  activities
• Opportunities for treating non Sellafield waste

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Sea Defence Schematic
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Half Height ISO Freights
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3 meter cubed box