TINT-Test Case Nanthavan Ya-anant Radioactive Waste Management Center Thailand Institute of Nuclear Technology (Public Organization) Technical Meeting on Practical Application of Safety Assessment Methodologies for Predisposal Management of Radioactive Waste, IAEA Headquarters in Vienna, 9 - 13 May 2011 E-mail : [email protected]
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Module 14: Storage of Radioactive Waste Documents... · Demonstration of TINT-Test Case in Training Course IAEA-RTC on Safety Case for Predisposal Management and Centralized Storage
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TINT-Test Case
Nanthavan Ya-anant
Radioactive Waste Management Center
Thailand Institute of Nuclear Technology (Public Organization)
Technical Meeting on Practical Application of Safety Assessment Methodologies for
Predisposal Management of Radioactive Waste, IAEA Headquarters in Vienna,
Technical Meeting on Practical Application of Safety Assessment Methodologies for Predisposal Management of Radioactive Waste,
IAEA Headquarters in Vienna, 9 - 13 May 2011
In June 2008, Thailand proposed to be a Test Case in
the 5th Plenary Meeting on SADRWMS Project in
Stupicke Toplice, Croatia.
The Chatuchak waste processing and waste storage
facilities have been chosen as a test case for the
SAFRAN software.
- TINT-RWM center consists of solid and liquid waste
treatment facilities and centralized storage facilities.
- TINT represents a good test case for applying the
SAFRAN Tool to a relatively small but quite complex
waste management facility.
SADRWMS Group
Summary of RWM in Thailand Radioactive Waste Management Center, TINT has been responsible
for radioactive waste management operation in Thailand. The RWM service covers on collection, transportation, segregation, treatment, conditioning, and storage. • Low level solid wastes are treated by incineration and compaction. • Low level aqueous wastes are treated by chemical flocculation-precipitation, and ion-exchange method. • Treated wastes are packed in 200 liter-drums for conditioning by cement.
• Disused sealed sources are conditioned by several technologies, such as cementation, encapsulation, and over-packages. • Processed wastes in drums and DSRS in packages are stored in the storage facilities in the RWMC, in Bangkok and Klong 5, Pathomthani province.
Disused SRS Processed Waste in 200 L Drums
Storage No.1 Storage No.2 Storage No.3
Storage Facilities
Work on the test case was performed between
January 2009 and March 2010 Mile Stones and Progress
1. Preparation of document
data, regarding to the methodology
2. Input data to SAFRANS software and
creation scenarios
3. Calculation to get the results for the
End Point.
4. Preparation of Safety Report
Note: The work within the test case
has taken place in total during
four meetings with a duration of
one week each.
Technical Meeting on Practical Application of Safety Assessment Methodologies for Predisposal Management of Radioactive Waste,
IAEA Headquarters in Vienna, 9 - 13 May 2011
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Each meeting involved between one and
three experts sent by the IAEA, staff
from TINT as well as staff from the regulator OAP.
Overall Goals
Using SAFRAN tool, perform a complete safety
assessment for the complete set of facilities
and activities at the TINT - Chatuchak site
Improvement of the TINT Predisposal Radioactive Waste Management Facility itself,
for the safety aspects and upgrading the
predisposal facilities in Thailand
Technical Meeting on Practical Application of Safety Assessment Methodologies for Predisposal Management of Radioactive
Waste, IAEA Headquarters in Vienna, 9 - 13 May 2011
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Work steps (1) Defining the assessment context for the safety
assessment
Providing a description of the site, facilities and
of all relevant activities the safety assessment
needs to address
Defining waste streams and provide data
(inventories, throughput rates, activity
concentration etc.) required for the quantitative
assessments
Technical Meeting on Practical Application of Safety Assessment Methodologies for Predisposal Management of Radioactive
Waste, IAEA Headquarters in Vienna, 9 - 13 May 2011
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Facilities:
• Processing Facilities
• Storage Facilities
Regulatory Framework
• National regulations
Waste Streams
• Newly arising wastes
• Existing wastes
RWM Activities
characterization, segregation, incineration,
compaction, liquid treatment, discharge,
conditioning and storage
SAFRAN Tool
Input all data: description of the site, facilities and so on, defining waste streams and provide data (inventories, etc.)
Vienna November 2007: Overview of SAFRAN Tool
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Characterization
Characterised waste
Solid & Liquid
Conditioning
Conditioning
Waste segregation
Disused SRS
Waste processing
Conditioned waste
Packaged waste
Treated waste
Re-Packaging
Packaged waste
TINT Wastes Stream Diagram
Processing facility
Storage Facility
To perform the safety assessment, data are required for the
radioactive waste to be processed and stored with respect
to its volume and form, the radionuclides of concern, the
levels of radioactivity, the presence of fissile materials, and
other physical, chemical and pathogenic properties.
Secondary waste streams that may arise from waste
processing are to be included.
Inventory of Radioactive Waste in Thailand as fiscal year 2009