Tank Waste Processing and Tank Closure

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Savannah River Site Tank Farm

The Office of Environmental Management (EM) tank waste program consists of safely storing of 90 million gallons of radioactive liquid waste at the Savannah River Site (SRS), Idaho National laboratory (INL) and the Office of River Protection (ORP) at Hanford, Washington. Of the approximately 90 million gallons, 36 million gallons (250 x 106 Ci ) is stored at SRS, approximately 56 million gallons (109 x 106 Ci) is located at ORP while 900,000 gallons of liquid sodium bearing waste (300,000 Ci) is at INL. In addition, EM operates major nuclear facilities to process and dispose of the waste as well as emptying, cleaning and closing the waste tanks. The SRS and ORP waste streams will be separated a highly radioactive fraction and a low activity faction. The high activity portion will be vitrified while the low activity portion will be either vitrified or grouted. 

As liquid waste is processed, the tanks are operationally closed through a process that involves: bulk waste removal, heel removal, cooling coil flushing/annulus cleaning, isolation & residual sampling and grouting. To date, eight SRS waste tanks have been operationally closed and grouted.

The EM tank waste program’s goal is to continue cleanup progress in a cost-effective manner that is risk informed, engages stakeholders, applies innovative solutions and provides value to the American taxpayer.

Defense Waste Processing Facility

Current EM nuclear processing facilities include:

Savannah River Site

Waste Treatment and Immobilization Plant
Waste Treatment and Immobilization Plant

Office of River Protection

  • Waste Treatment and Immobilization Plant (WTP) (under contraction) – designed to vitrify both the high and low activity portions of the liquid tank waste with the current plan to initiate operations with low activity waste vitrification, Direct Feed Low Activity Waste (DFLAW)

 

 

 

Integrated Waste Treatment Unit
Integrated Waste Treatment Unit

 

Idaho National Laboratory (INL)

  • Integrated Waste Treatment Unity (IWTU) – designed to treat sodium bearing high level radioactive waste using Fluidized Bed Steam Reforming (FBSR) that decomposes waste using super-heated steam to produce a sodium-alumino-silicate (NAS) mineralized waste form that can be packaged for disposal 

Tank Waste & Waste Processing News

Transporter Tests Validate Design, Capabilities of Waste Transfer at Hanford Plant
April 16, 2019
The immobilized low-activity waste transporter system is capable of safely moving containers filled with a mix of glass and waste.
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3-D Technology Supports Building Design for Hanford’s DFLAW Program
April 16, 2019
Richland contractor Mission Support Alliance is using industry best practices and 3-D modeling software to help design a new water treatment facility.
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SRS Works on Dual Waste Streams, Reaching 10 Million Gallons Processed
April 2, 2019
For the first time in the history of the Savannah River Site (SRS), EM is processing two salt waste streams at the site.
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SRS Liquid Waste Contractor Recognizes Four Employees for Lifesaving Actions
April 2, 2019
Four EM Savannah River Site (SRS) employees have been recognized this year for acting as both first responders and good Samaritans.
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Savannah River Site Completes First Batch in Waste Removal Pilot Project
March 26, 2019
EM’s first batch of processed radioactive liquid waste using a new technology at the Savannah River Site (SRS) is complete.
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More Vessels Arrive at Hanford WTP
March 26, 2019
EM’s Office of River Protection recently received two new effluent collection and sampling vessels at the Hanford Waste Treatment plant.
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ETTP’s Longest Operating Facility Demolished in Oak Ridge
March 19, 2019
Workers recently completed demolition on Building K-1414, a garage that was the longest operating facility at the East Tennessee Technology Park.
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SRS Begins Constructing Large-Scale Disposal Unit
March 19, 2019
EM and its liquid waste contractor at the Savannah River Site, has begun constructing the outer shell of the site’s salt-stone disposal unit.
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Analysis Helps Hanford Consider New Options for Retrieving Tank Waste
March 5, 2019
At the Hanford Site, waste retrieval has been completed in 17 of 149 large concrete underground single-shell tanks (SSTs).
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SRS Liquid Waste Contractor Earns International Safety Award
March 5, 2019
EM’s liquid waste contractor at the Savannah River Site was recently recognized for its efforts in championing personal safety across the company.
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