ANSTO Synroc Wasteforms and processing technology for the ...ANSTO Synroc – NECSA Project For...

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ANSTO Synroc Wasteforms and processing technology for the immobilization of Mo - 99 production wastes Rohan Holmes , Dan Gregg, Lou Vance, and Gerry Triani ANSTO Synroc For Official Use Only

Transcript of ANSTO Synroc Wasteforms and processing technology for the ...ANSTO Synroc – NECSA Project For...

Page 1: ANSTO Synroc Wasteforms and processing technology for the ...ANSTO Synroc – NECSA Project For Official Use Only. Task Deliverable Completion 1. Feasibility review of immobilization

ANSTO Synroc Wasteforms and processing technologyfor the immobilization of Mo- 99 production wastesRohan Holmes, Dan Gregg, Lou Vance, and Gerry TrianiANSTO Synroc

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Vision

Be the worlds number one solution provider for the immobilisation and

termination of intractable nuclear wastes.

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ANSTO Synroc is expert in developing technology solutions for intractable nuclear wastes

Laboratory to pilot scale engineering including integration, automation, and high-fidelity surrogate testing for active environment

Ability to develop solutions that range from wasteform design and validation through to process conceptualization, design and demonstration testing, storage,

transport, and final disposal

A multidisciplinary team which uses a systems integration and risk mitigation approach to develop ta ilored solutions

Active handling at an industria lly re levant scale

ANSTO Synroc Capability

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Outline

Brief overview of ANSTO SynrocNECSA collaboration ANM and the SyMo Facility

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Ceramic• HLW / ILW• Lattice substitution• 10-5 g/m2/d

Glass• HLW / ILW• Glass network incorporation• 10-3 g/m2/d

Glass Ceramic• HLW / ILW• Composite glass-ceramic• Elements targeted to either

ceramic or glass• 10-3 -10-5 g/m2/d

Cement• LLW• Continuous porosity • Diffusion release• Waste ions located in pore

water

• Mix the waste with selected additives to make solid material that is relatively insoluble in water• Major HLWwaste forms that can immobilise the full range of FPs+ actinides are glass, synroc, and glass-

ceramics• Long-lived in Nature• Cementitious products for less active wastes

Candidate Waste Forms

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• Radionuclides enter into solid solution in the mineral phases as a result ofappropriate formulation design and processing conditions

Ca sites

Zr site

Ti sites

Ba site0.18 nm 0.13 nm

0.15 nm 0.086 nm

0.10 nm 0.067 nm

0.083 nm 0.053 nm

3+ Actinides 4+

ZirconolitePyrochlorePerovskiteHollandite

ANSTO Synroc Waste Form Development

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Benefits from HIP route: • Minimal emissions from high temperature

densification• Significant waste volume reduction (impact on

long term storage)• High density with minimal temperature (grain

size)• Versatile - Capable of producing a wide range of

waste forms• No contact between waste and process

equipment – No melter required

DEM

ON

STRA

TOR

HIP

ANSTO Synroc – HIPing

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• Integrated HIP CAN Design

• Storage / final disposal

• Waste form• HIP process

ANSTO Synroc – CAN Design

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Source Funding • Funded by the U.S. Department of Energy’s (DOE)National Nuclear Security

Administration (NNSA)

Project AIM• Demonstrate to existing Mo-99 stakeholders (producers and regulators) that

there are technically viable and economically feasible means of addressingglobal challenges associated with wastes derived from Mo-99 production

• Address the waste treatment objectives of the Mo-99 producers• Address NNSA’snon-proliferation objective s

ANSTO Synroc – NECSA Project

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Task Deliverable Completion1 Feasibility review of immobilization and disposal of

generated waste streams August 2014

2 Consolidated demonstration report on encapsulationtechnologies using surrogate residue April 2018

3 Assessment report on selection of encapsulationtechnologies

4 Consolidated demonstration report on down-selectedtechnologies with radioactive residue

5 Integrated view and cost analysis report6 Final report

ANSTO Synroc – NECSA Project

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Task 1. Feasibility review (Desktop Study) • Identification and description of all waste streams resulting from fission Mo-

99 production• Nuclear waste form candidates for the immobilization of waste streams from

fission -based Mo-99 production• Proposed generic waste acceptance criteria for waste forms used to

immobilize waste from Mo-99 production• Preliminary screening and recommendations made for waste forms for

various waste streams

ANSTO Synroc – NECSA Project

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Task 2. Demonstration of Selected Technologies (surrogate material)

• A range of waste treatment technologies to immobilize the in -scope waste streams were prepared, characterised and evaluated against the pre-established performance criteria.

• ~ 100 laboratory scale samples (~50 g scale) • ~ 20 larger scale samples (up to 6 kg) • A range of glass-ceramic and glass candidate

wasteforms demonstrated to pass all performance requirements

ANSTO Synroc – NECSA Project

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Task 3. Engineering feasibility of down-selected options• Technological risk

• Industrial scalability, maturity (technology readiness) and deployment requirements

• Ability of technology to treat all wastes in question

• Criticality and proliferation issues

• Waste throughput and secondary waste streams generated

ANSTO Synroc – NECSA Project

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ANM and the SyMo Facility

https://www.watpac.com.au/project/ansto-nuclear-medicine-facility/

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OPAL Irradiation Plate TransportPlate Target

Dissolution, Filtration and Initial Ion-exchange Purification: ILLW

Synroc Intermediate Level Liquid Waste Treatment Plant (SyMo Facility)

SyMo Facility

~5000L/ yr of ILW to treat

ANM Production Cycle

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Cementation interim storage volume

~112m3

Alkaline liquidwaste per year

5m3

Final Solid Disposal volume

HIPed Wasteform~2.5m3

Waste package

A Synroc Advantage

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• For the delivery of a project such as the SyMo Facility ANSTO Synroc changed:• A strong engineering focus

• Risk based approach - identify, verify, mitigate, validate (safety in design)• Systems Engineering and Integration approach• Nuclearisation of proven process technologies

• Process validation from waste through to wasteform• Demonstrate and validate prior to deployment within SyMo,

i.e., Mock-up, Demonstrate, and Deploy technology

• A significant objective of the Project• Train and develop the next generation of young Nuclear Engineers

within Australia

Evolution of ANSTO Synroc

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TRL 1 TRL 9Technology Readiness Level

Wasteform Engineering

Process demonstration

Waste Spec

Waste form development

Process Design and Development

EngineeringFacility Build

Commissioning

Operations

Gov

erna

nce,

Qua

lity,

and

Safe

ty

Waste form Validation

Operational team Training

Procedural Development

CE PE DE

PC CC HC

Cont

inuo

us Im

prov

emen

t

Mock up

SyMo Facility - Design Process

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Process Conceptualisation

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• Demonstrator at engineering scale equivalent tofinal plant with remote operation .

• Mitigate risks associated with F.O.A.K nuclearplant, e .g., process integration risk

• Powder processing - Test and validate inputs forthe final plant design

• Critical CAN processing stages will be mocked-up as mechanical process steps to validate thedesign for the final plant

• Operational window for process• Process performance• Product specification• Train plant operators and maintainers

POW

DER

PRO

CESS

ING

ANSTO Synroc - Demonstration Plant

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ANSTO Synroc - Demonstration Plant

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ANSTO Synroc - Demonstration Plant

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Collaboration with Necsa (NNSA funded) to establish cost estimates for Mo-99 production wastes The ‘SyMo’ Facility (Synroc-Molybdenum) will operate a world first process

line utilising a fully integrated HIP based technology Demonstration plant is key to increasing TRL for deployment Project status:

• Demonstrator is in operational phase• Stakeholder engagement commenced for disposal (NRWMF)• Detailed engineering/ design of hot-cell structure and building• Construction commenced• Target- operational licence in 3 years

Conclusion

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ANSTO Synroc TeamAmanda Abboud, Paola Baratcabal, Ben Bigrigg, Bryan Blayney, Sean Brophy, Jim Chapman, Pranesh Dayal , Stephen Deen, Dan Gregg, Greg Hall, Rohan Holmes, Yang Li, Mile Miladinovski, Mitchell Smith, Lou Vance, Ian Watson, Neil Webb, and Catherine Welsh.

ANSTO Nuclear Medicine P/L Engineering & Capital Projects team Safety & Systems Reliability Waste Operations (Operational Readiness team)

Acknowledgement for Necsa CollaborationThe is project was funded in part by the U.S. Department of Energy, National Nuclear Security Administration, through UChicago Argonne, LLC, Operator of Argonne National Laboratory (“Argonne”). Argonne, a U.S. Department of Energy Office of Science laboratory, is operated under Contract No. DE-AC02-06CH11357.

Acknowledgements

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ANSTO Synroc SyMo Facility design

Construction commenced: July 2018SyMo Facility status

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