U.S. Department of Energy; Office of Environmental Management; Oak Ridge Operations ; Site Technology Coordination Group Newsletter; Summer 1997

This summer a team at Oak Ridge National Laboratory (ORNL) demonstrated soil freezing as a means of radionuclide containment at a Superfund waste site.

The demonstration site is an earthen pond dug in 1955 to receive waste from Homogeneous Reactor Experiment (HRE) conducted at ORNL between 1951 and 1961.  The 316,000-gal pond, meant for low-level liquid waste (< 1,000 cpm/mL), also received highly contaminated fission products, principally 137Cs and 90Sr.  The pond was backfilled and sealed in 1970.

Read more: - Cryogenic Barrier Is Being Installed And Tested On A Superfund Site At ORNL


Knoxville News-Sentinel (TN); Section A; April 12, 1997

OAK RIDGE - Nuclear winter?

A test project on the Department of Energy's Oak Ridge reservation will freeze the ground in an effort to stem the spread of radioactive contamination. Arctic Foundations Inc., a company based in Alaska, has a $1 million contract to conduct the demonstration over the next couple of years. Preliminary work will begin later this month.

Read more: - Frozen Soil Could Stop Spread of OR Waste


Passively refrigerated piles and gravel pads were selected as the foundation system for the new hospital in Kotzebue, Alaska

Ashrae Journal; September 1993

Passive refrigeration using two-phase thermosyphons is being used to provide a stable foundation for the new $40 million hospital currently under construction at Kotzebue, Alaska. This project is reportedly the largest (in area) designed to date on a site underlain by highly variable and unbonded saline permafrost. The 80,000 ft2 (7430 m2) hospital is a comprehensive healthcare facility that will service the residents of northwest Alaska. Two different types of foundation systems using thermosyphons for subgrade cooling are being used for the project. 

Read more: - Using Passive Refrigeration To Stabilize Foundations In Cold Climates


Anchorage Daily News (AK); Business; October 23, 1996 

The U.S. Department of Energy is testing a technique to corral a leaking nuclear waste pond using technology pioneered in Erwin Long's back yard in the 1950's. In a cool solution to a hot problem, the government this year chose Long's company, Arctic Foundations Inc., to freeze the ground around a leaky pond of radioactive soil and sludge.  At Oak Ridge National Laboratory in Tennessee, where the soil-freezing test will take place, ''some people say if anyone can do it, those Alaskans can,'' said program manager Elizabeth Phillips.

Read more: - Agency Wants Site Put On Ice: Alaskan Called To Chill Radioactive Waste Pond


Keeping it cold at Kotzebue - Veco/Nana, J.V. install passive refrigeration piles to keep the new Kotzebue hospital on frozen-solid ground 

Pacific Builder & Engineer (Alaska Edition); April 5, 1993

Anchorage-based Veco Inc., in a joint venture with Nana Regional Corp. of Kotzebue, has completed what may be the largest building-foundation job in the Unites States using passive-refrigeration piles. The $4.1 million project, for the U.S. Public Health Service, is phase one of a $40 million new hospital in Kotzebue, Alaska, that is now under way. 

Read more: - Piles Preserve Permafrost


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