“Innovative and Adaptive” Technologies for …...IAEA [email protected] Commercial High-Pressure...
Transcript of “Innovative and Adaptive” Technologies for …...IAEA [email protected] Commercial High-Pressure...
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IAEAInternational Atomic Energy Agency
“Innovative and Adaptive”Technologies for Decommissioning
Some highlights from IAEA TECDOC 1602IAEA R2D2P Workshop on Decommissioning Technologies
FZK Karlsruhe, July 6-10 2009Paul J C Dinner ([email protected])
Consultant, Waste Technology Scientific Secretary - IDN
IAEA, Vienna
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IAEA [email protected]
Innovative and Adaptive Technologies
• Results of an IAEA “Consultative Research Project” on this subject=> TECDOC 1602
• The project, which ended in Dec 2007, involved 13 organizations.
• Wide scope encompassed decision-making tools as well as “hardware” aspects
• Focussed on adapting and applying technologies from larger projects to smaller ones, e.g.
• Simple equipment especially commercial tools
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IAEA [email protected]
Innovative and Adaptive Technologies
• This presentation focuses on a “subset” of the work reported in TECDOC 1602
• Compilations of simple tools and techniques• Work of three MS organizations reported�Nuclear Research Inst Rez, Czech Republic�Danish Decommissioning, Roskilde, Denmark�State Enterprise “RADON”, Moscow, RF
For further details of these and the work of other participants in the CRP, see TECDOC (on Disc), or email addresses at the end of the presentation.
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IAEA [email protected]
• RADON work addresses simple, practical techniques for decontamination.
• Examples presented here include �A vacuum+ filter assembly with customized “pickups”�Commercial High-Pressure Water Jet�Dust-supressing polymers�Commercial hydraulic tools for dismantling�External (roller) electrode for electro- chemical decontamination of a glove box
Innovative and Adaptive Technologies
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IAEAInternational Atomic Energy Agency
HandHand--made vacuum/filtering system made vacuum/filtering system for concrete dust removalfor concrete dust removal
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IAEA [email protected]
RADON Vacuum and filtering system
• Commercial filter and vacuum • Russian made (Sovplim FS1801)• HEPA filter, 0.02 m/s, area of 17 m2• Real capacity 1100 m3/h with filter and pipe• Own design/construction of air inlets
(visible in the picture)
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IAEA [email protected]
Commercial High-Pressure Water Jet
• Familiar brands include Bosh, Karher, Kranzle (commercial professional grade tools)
• Typical high-pressure jet (150-200 Bar,1-3m3/h)
• Includes water heater (80 – 130oC)• Chemical additives – acids, alkali, K2MnO4• Abrasives – filter and treat as waste-water
(cannot recycle this water thru the nozzle)
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IAEA [email protected]
Commercial High-Pressure Water Jet
•• The hydro jet withThe hydro jet with chemicals applied for chemicals applied for heavy contamination with deep penetration heavy contamination with deep penetration of radionuclides into stainless steel or of radionuclides into stainless steel or copper alloyscopper alloys
•• The hydro jet with abrasivesThe hydro jet with abrasives is very very effective for decontamination of external effective for decontamination of external surfaces of buildings and construction with surfaces of buildings and construction with deep penetration of contaminantsdeep penetration of contaminants
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IAEA [email protected]
Commercial High-Pressure Water Jet••Hydro jet with abrasiveHydro jet with abrasive-- fine fraction of sand, fine fraction of sand, ••5050--70 kg / hour fine sand70 kg / hour fine sand
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IAEA [email protected]
Demolishing of contaminated plaster.
I Application of dust-supressing polymers
II Removing of the contaminated plaster
Commercial electro gouge mounted with industrial vacuum cleaner
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IAEA [email protected]
Polymeric decontamination films -reinforced with cotton
Removing of polymeric decontamination films
Cotton Re-enforced Polymeric Films
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IAEA [email protected]
Cotton Re-enforced Polymeric Films
• Initial work with commercial films (e.g. “Radez”) had low DF and worked only for loose contamination (e.g. dust)
• Commercial cotton gauze or packing cloth used in additional tests also proved unsuitable.
• Currently developing new generation of these with Moscow State University
• Others around the world have similar products at various stages of commercialization
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IAEA [email protected]
Handheld mechanical cutting equipment for small contaminated pipes (in TRS 463)
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IAEA [email protected]
Using of polyethylene film for isolation of radioactive wastes before transportation
Using of polymeric foam for isolation of ventilation system before dismantling
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IAEA [email protected]
Segmented (roller) electrode for electro-chemical decontamination of a glove box
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IAEA [email protected]
Segmentation and Decontamination used at NRI Rez: (details in theTECDOC)
• Industrial vacuum cleaners and dust extractors
• Hot Water Pressure Washer• Powered Hydraulic Shears• Foam decontamination• Ultrasonic decontamination• Dry-ice blasting
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IAEA [email protected]
Decontamination by Dry-Ice BlastingNRI, Rez
• Clean alt. to bead, grit and sand-blasting• Uses dry-ice (solid CO2) in 3mm pellets• Supersonic accelerations• High expansion on impact (540x)• Vapour can be released – needs good vent!• Contaminated aerosols filtered. (No liquid!)• Non-abrasive to the impacted surface
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IAEA [email protected]
(See Table from TECDOC 1602 in the Hanncluding introductions to
international contacts at trade shows etcdout)
• Hydraulic Cutter for cutting of Al tubes• Automatic band-saw for separating
radioactive and potentially non-rad parts• Hydraulic Press for tube volume reduction• Pneumatic lifting devices (suction pads)• Plasma cutter with (2m extension)
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IAEA [email protected]
Sources of D&D Technical Information
• Main Website on IAEA Decommissioning http://goto.iaea.org/decommissioning/• Main site for downloading D&D reports http://www.iaea.org/OurWork/ST/NE/NEFW/wts_decommissioning.html• Contributors to this presentation• Sergey V.Mikheykin - [email protected]• Josef Podlaha - [email protected]• Kurt Lauridsen - [email protected]• Michele Laraia – [email protected]
• The International Decommissioning Network [email protected]
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IAEA [email protected]
Do not re-invent the wheel !!!!
THANKS FOR YOUR ATTENTION
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