avantech fukushima presentation- science cafe
DESCRIPTION
Jim Braun, President and CEO of AVANTech joined us to talk about his company's experience with cleaning the wastewater at the Fukushima Nuclear Site.TRANSCRIPT
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AVANTech Incorporated
11.79%
19.79%
1.37%17.31%
49.66%
0.07% Government
Industrial
Municipal
Oil & Gas
Power
Remediation
Avantech Team: 63 Employees17 Engineers5 Project Managers3 Marketing and Sales
Avantech Water Treatment: Nuclear Water Treatment Wastewater Treatment Recycling
Avantech Product Line: Water Treatment Services 100+ Standard Products Nuclear Water Specialty Wastewater Specialty
Foundation For Excellence!
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AVANTech Incorporated
Foundation For Excellence!
Nuclear Quality:ASME NQA-1 Quality ProgramFull time CWI, SN-TC-T1A Inspection
Professional Engineering:ChemicalMechanicalElectrical
Professional Manufacturing: ASME Code StampASME/AWS WeldingUL Panels
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AVANTech Incorporated
Worldwide Expertise!
DOE Expertise:
International Expertise: Commercial Nuclear Expertise:
Power Generation:
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Water Treatment Challenges at the
Fukushima-DaiichiNuclear Facility
AVANTech Incorporated
James L. BraunPresident and CEO
November - 2013
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Incident Fundamentals
Epicenter of TōhokuEarthquake
Fukushima ●
‐ Eurasian Plate‐ North American Plate‐ Pacific Plate‐ Philippine Plate
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Tectonic Plates of Japan
‐ 1500 Earthquakes Annually‐ 10% of the world’s volcano’s
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Great East Japan Earthquakeo March 11, 2011o Magnitude 9.0o Power fails in northern Japano Units 1, 2 & 3 shutdown automaticallyo Units 4, 5 & 6 already shutdown (defueled)
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TsunamiFriday, March 11th at 14:46• No significant Rx
damage due to earth-quake
• Diesel generators start(13 generators total)
• Emergency core cooling system initiate
• Plant is stable
Tsunami Hits NPP at 15:41• ≈ 50+’ Fukushima NPP• Floods diesel generators• Station blackout
- Only Battery PowerRemains
Cooling Systems• All cooling systems fail • Steam from decay heat creates high pressure
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TsunamiTsunami
• Wave Entering Turbine Building.
Automobile
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TsunamiTsunami
Flooding of Turbine Building
Automobile
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Accident ConditionsAccident Conditions
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Contributing Factor - TopographyContributing Factor - Topography
AvantechEquipment
12Site Excavation Exacerbates the Problem
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Hydrogen ExplosionsHydrogen Explosions
• Open Steam Relief Valves to Torus• Open Drywell Relief Valve• Zr + 2H20 → 1200°C → ZrO2 + 2H2
Cooling Systems• All cooling systems fail• Steam from decay heat creates high pressure
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≈ 50 psilimit
FuelPool
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Hydrogen Explosions
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Devastation from Explosion
Unit 4 Unit 3 Unit 2 Unit 115
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o Phase 1 - Cesium Removal – SARRY Systemo Phase 2 – Multinuclide Removalo Phase 3 - Strontium Removalo Phase 4 - Groundwater Treatmento Phase 5 - Car Wash
Fundamentals of the Emergency
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Fukushima Liquid Waste OverviewFukushima Liquid Waste Overview
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Water Treatment Continues to Be a Challenge
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Phase 1 - The Technical Challenge
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Removal of radioisotopes in a Seawater Solution
Deliver it in less than 8 weeks Start-up in less than 12 weeks Ensure its safe! Dose Rates Thermal Operational Safety
Failure means Radioactive Wastewater into the Pacific Ocean
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Phase 1: The AVANTech SolutionPhase 1: The AVANTech Solution
Crystalline Silicotitanate Polishing Ion Exchange Distribution Coefficient (Kd) > 20,000 Needed to achieve complete activity
removal with a single pass
AxialCesiumLoading
Cs Limited to200,000 Ci(7.5E+15 Bq)
Engineered Zeolite Primary Ion Exchange Distribution Coefficient (Kd) ≈ 2,000 in
seawater Good Axial Cesium Distribution
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Challenge 1 – Activity Capture Challenge 2 – Shielding
Integral Shielding ≈ 6” Pb Equiv.
Loaded Wt.:≈ 23 mt (50,000 lb)
Safely Managing 200,000 Curies of Radioactive Material
Challenge 3 – Heat Generation
855 °FCenterline
TemperatureProfile
Centerline/ Core Temperature
Passive Cooling Contact Handled Long Term Storage
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Phase 1 – The AVANTech SolutionPhase 1 – The AVANTech Solution
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Process Optimizes Media and Decontamination Factor
SARRY Pipe Racks
SIXMs
Flexible Hoses
H2 Vents
Automatic Alignment
DP (kPad)
Throughput (m3)
Rad Loading (TBq)
Trending
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The Implementation Challenge
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Rigors of Working at the Fukushima Site
Exclusion Zone - 20 to 30 km Around Fukushima Site
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Clean/ Regulated/ ContaminatedClean/ Regulated/ Contaminated
J-Village / National Soccer Center
© 2011 by AVANTech Inc. This document contains information that is confidential and proprietary. No rights to this document are granted herein, except as may be expressly provided in any signed written agreement. This document may not be copied, modified, disclosed, or used other than in accordance with the terms and conditions of the agreement under which it is provided. 22
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Site MobilizationSite Mobilization
J-Village (Dress Out Area)
© 2011 by AVANTech Inc. This document contains information that is confidential and proprietary. No rights to this document are granted herein, except as may be expressly provided in any signed written agreement. This document may not be copied, modified, disclosed, or used other than in accordance with the terms and conditions of the agreement under which it is provided. 23
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Site MobilizationSite Mobilization
J-Village (Dress Out Area)
© 2011 by AVANTech Inc. This document contains information that is confidential and proprietary. No rights to this document are granted herein, except as may be expressly provided in any signed written agreement. This document may not be copied, modified, disclosed, or used other than in accordance with the terms and conditions of the agreement under which it is provided. 24
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Site MobilizationSite Mobilization
J-Village (Dress Out Area)
© 2011 by AVANTech Inc. This document contains information that is confidential and proprietary. No rights to this document are granted herein, except as may be expressly provided in any signed written agreement. This document may not be copied, modified, disclosed, or used other than in accordance with the terms and conditions of the agreement under which it is provided.
Dosimetry• Tepco TLD• Toshiba TLD• D.A.D.
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Site MobilizationSite Mobilization
Transportation to Site
© 2011 by AVANTech Inc. This document contains information that is confidential and proprietary. No rights to this document are granted herein, except as may be expressly provided in any signed written agreement. This document may not be copied, modified, disclosed, or used other than in accordance with the terms and conditions of the agreement under which it is provided. 26
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Site MobilizationSite Mobilization
Exit from J-Village (From Regulated Area)
© 2011 by AVANTech Inc. This document contains information that is confidential and proprietary. No rights to this document are granted herein, except as may be expressly provided in any signed written agreement. This document may not be copied, modified, disclosed, or used other than in accordance with the terms and conditions of the agreement under which it is provided. 27
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Site MobilizationSite Mobilization
Contaminated Protective Clothing Storage
© 2011 by AVANTech Inc. This document contains information that is confidential and proprietary. No rights to this document are granted herein, except as may be expressly provided in any signed written agreement. This document may not be copied, modified, disclosed, or used other than in accordance with the terms and conditions of the agreement under which it is provided. 28
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Installation ChallengesInstallation Challenges
SIXM’s Arriving at Fukushima Dock
© 2011 by AVANTech Inc. This document contains information that is confidential and proprietary. No rights to this document are granted herein, except as may be expressly provided in any signed written agreement. This document may not be copied, modified, disclosed, or used other than in accordance with the terms and conditions of the agreement under which it is provided. 29
Air Freight to Japan
Ship from Tokyo to Iwaki
Barge from Iwaki to Fukushima Site
Earthquake Damage Created Logistics Problems
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Equipment InstallationEquipment Installation
SARRY Pipe Racks
SIXMs
Post Filters
© 2011 by AVANTech Inc. This document contains information that is confidential and proprietary. No rights to this document are granted herein, except as may be expressly provided in any signed written agreement. This document may not be copied, modified, disclosed, or used other than in accordance with the terms and conditions of the agreement under which it is provided. 30
Raised Walkway
Flexible Hoses
Dry Disconnects
Hydrogen Ventilation
Composite Autosamplers
Grab Samplers
Gamma Detectors
Remote Sampling
Mobile Equipment Aided Expedited Installation
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Equipment InstallationEquipment Installation
© 2011 by AVANTech Inc. This document contains information that is confidential and proprietary. No rights to this document are granted herein, except as may be expressly provided in any signed written agreement. This document may not be copied, modified, disclosed, or used other than in accordance with the terms and conditions of the agreement under which it is provided. 31
Rx, Turbine and
Radwaste Building
24 million gallons of
Storage Capacity
Mobile Equipment Aided Expedited Installation
Submersible Transfer Pump Transfer HosesTurbine Building
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Simplified and Automated SolutionSimplified and Automated Solution
Automatic IX Alignment
DP (kPad)
Throughput (m3)
Rad Loading (TBq)
Trending
© 2011 by AVANTech Inc. This document contains information that is confidential and proprietary. No rights to this document are granted herein, except as may be expressly provided in any signed written agreement. This document may not be copied, modified, disclosed, or used other than in accordance with the terms and conditions of the agreement under which it is provided. 32
Automation Eliminates Exposure and Human Errors
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Phase 1: ResultsPhase 1: Results
Accumulated Water Volume Control
U2 T/B B1 WL [mm]U3 T/B B1 WL [mm]
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SARRY Processed 80% of Water Non-detectible CS-137 effluent DF > 2 million
SARRY Generated 13% of Waste
Results by all Standards Exceeded Clients Expectations
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TEPCO Success!TEPCO Success!
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Results by all Standards Have Exceeded Expectations
The Challenge: • Lethal Levels of Cs-137: • Heat Generation: • Radiation Shielding: • Hydrogen Gas Gen:
The Product:• Prefiltration• Ion Exchange• Automation• Sampling
The Result:• < 10 week delivery• DF > 2,000,000• Cs Effluent – Non-detectible• Waste Generation – 10%• Safe Operation Additional Work:
• Groundwater Treatment• SARRY Replacement Vessels• Atrex
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Post Emergency Challenges
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On-going Challenges Phase 2 – Brine Treatment
Phase 3 - Strontium Removal
Phase 4 - Groundwater Remediation
Phase 5 - Car Wash Wastewater
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Phase 3 – Strontium RemovalPhase 3 – Strontium Removal
Strontium Removal Focus Worker Exposure
Evaporator Maintenance R/O Maintenance Equipment Maintenance
Radionuclide Removal Waste Generation
Technical Challenge High Salinity Water Heat Dissipation Radiation Exposure Minimize Radwaste Generation Optimize Material Handling
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SARRY(AVANTech)
REVERSE OSMOSISTURBINE BLDGS.
PURE COOLING WATER STORAGE
600 M3/D
GROUNDWATER
≈ 1000M3/D
≈ 400 -500M3/D
BRINESTORAGE
TANKS
Reject
≈ 1000M3/D
≈ 50% Rec.
≈ 500M3/D
STORAGETANKS
STORAGE OF SHIELDED IX
MODULES
Volumes as ofSeptember 26, 2012
≈ 500 M3/D
RX
1ST CESIUMAPPARATUS
RADWASTEBLDGS
90,000 M3(24 MGAL)
180,000 M3(47.5 MGAL)
22,000 M3(5.8 MGAL)
New SrMedia
Areva/ KurionStandby Operation
120 Mgal treated since June-2011
Creating a Safer Work Environment and Minimizing Exposure
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Phase 3 – Strontium RemovalPhase 3 – Strontium Removal
Current Process
System Objectives Minimize On-site work Utilize Existing Crane Passive operation
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Design Inputs Sr-90 Concentration 1E+05 Bq/cm3
Cs-134 Concentration 7E+04 Bq/cm3
Cs-137 Concentration 1E+05 Bq/cm3
IX Volume 1E+06 cm3
SARRY System Flow
Plug-n-Play Creates a Simplified Solution
Retrofit Results ASME Section IX Pressure Vessel Operating Pressure – 200 psig Integrated into existing SARRY System 55 m3/hr flow rate per vessel
Thermal Results Dose Profiling Operation 1st Quarter 2014
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Phase 4 – Groundwater RemediationPhase 4 – Groundwater Remediation
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Groundwater Goals Rad Removal for Discharge High TDS Influent Minimize Waste Generation Minimize Consumables
Groundwater Problem Groundwater In-leakage Increased Contaminated Water Increased Waste Volumes Radionuclides getting to the Ocean
Lower Groundwater to Reduce In-Leakage
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Phase 4 – Groundwater RemediationPhase 4 – Groundwater Remediation
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System Solution Gross Filtration Fine Filtration Ion Exchange
System Design Inputs 1,200 m3 per day (220 gpm) Chemistry
Cl- 800 ppm Ca 23 ppm Mg 61 ppm COD 7 mg/l
Activity Cs-134: 5.12 Bq/ml Cs-137 9.46 Bq/ml I-131: 6.65E-02 Bq/ml Co-60: 1.64E-02 Bq/ml Sr-90: 3.56E-02 Bq/ml
Laboratory Scale Validation of Media
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Phase 4– Groundwater RemediationPhase 4– Groundwater Remediation
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OperationsPlug-n-Play InstallationAutomatedMaterial Handling Similar
to SARRY Anticipated ResultsNondetectible EffluentMinimal Waste GenerationStart-up February 2014
Filtration
Ion Exchange
Controlling In-Leakage to Meet the Site Objectives
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Phase 5 – Vehicle DecontaminationPhase 5 – Vehicle Decontamination
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Vehicle Challenge Clean Wastewater from
Decontamination of Vehicles Radionuclide Removal Minimize Waste Generation
Technical Challenge High Solids Radiation Exposure Material Handling Minimize Waste Generation
Item UnitInlet
(Waste Water)Outlet
(Treated Water)SS ppm 200 <50Cl- ppm 10
COD ppm 50 30Oil ppm 10 5pH 8.0 – 9.0 5.6 – 8.6
Cs-134 Bq/l 1000 <25Cs-137 Bq/l 1000 <25
Wastewater Characterization
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Phase 5 – Vehicle DecontaminationPhase 5 – Vehicle Decontamination
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Technical Solution Batch Process Collection Tank Clarification Chemical Treatment Filtration Solids Treatment
Design Characteristics 10 m3/day in hr 2.5 m3/hr Automated Nondetectible Effluent
ATREX Arrangement
Clarification
Sample Tanks Filtration
Chemical Treatment
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Fukushima Water ChallengeFukushima Water Challenge
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Phase 1 - Cesium Removal – Avantech’s SARRY System Phase 2 – Multinuclide Removal Phase 3 - Strontium Removal – Avantech’s SARRY Upgrade Phase 4 - Groundwater Treatment – Avantech’s Treatment System Phase 5 - Car Wash – Avantech’s Atrex System
Past Success has Created Future Opportunities