• About
    • About Us
    • What We Cover
  • Advertise
    • Advertise
    • Our Advertisers
  • Contact
  • Donate
  • Send News

Oak Ridge Today

  • Home
  • Sign in
  • News
    • Business
    • Community
    • Education
    • Government
    • Health
    • Police and Fire
    • U.S. Department of Energy
    • Weather
  • Sports
    • High School
    • Middle School
    • Recreation
    • Rowing
    • Youth
  • Entertainment
    • Arts
    • Dancing
    • Movies
    • Music
    • Television
    • Theater
  • Premium Content
  • Obituaries
  • Classifieds

Crews demolish ORNL reactor once used for aircraft nuclear propulsion research

Posted at 3:05 pm November 11, 2022
By Oak Ridge Today Staff Leave a Comment

Demolition began in September 2022 on the Bulk Shielding Reactor at the Oak Ridge National Laboratory, and it was completed in November. It was the first teardown of a former reactor at the site. (Photo by U.S. Department of Energy Office of Environmental Management)

Workers have demolished a nuclear reactor that was built at Oak Ridge National Laboratory in the 1950s for studies that were part of the federal aircraft nuclear propulsion program.

It’s the first demolition of a reactor in the ORNL central campus area. The demolition was reported to be completed ahead of schedule.

The Bulk Shielding Reactor, also known as Building 3010, was built in the 1950s for radiation shielding studies as part of the federal aircraft nuclear propulsion program. It included a 27-foot-deep reactor pool filled with water to shield the radioactive components contained in the pool, according to the U.S. Department of Energy Office of Environmental Management. Its mission changed to a general-purpose research reactor in 1963, and it was shut down permanently in 1991.

The reactor was demolished by cleanup contractor UCOR, working for DOE’s Oak Ridge Office of Environmental Management (OREM).

[Read more…]

Filed Under: Front Page News, Oak Ridge National Laboratory, Oak Ridge Office of Environmental Management, Top Stories, U.S. Department of Energy Tagged With: aircraft nuclear propulsion, Building 3010, Dan Macias, demolition, Nathan Felosi, nuclear reactor, Oak Ridge National Laboratory, Oak Ridge Office of Environmental Management, Office of Environmental Management, OREM, ORNL, U.S. Department of Energy, UCOR

Mercury cleanup: COLEX equipment deactivated at Y-12

Posted at 7:54 pm November 8, 2021
By Oak Ridge Today Staff Leave a Comment

Oak Ridge workers remove mercury and mercury-contaminated solids from process pipes in the column exchange, or COLEX, equipment at the Alpha-4 facility at the Y-12 National Security Complex. (Submitted photo)

Crews are nearly finished deactivating the second of three collections of old, mercury-contaminated equipment around the Alpha-4 facility at the Y-12 National Security Complex at Oak Ridge, a press release said.

The project addresses potential environmental risks and moves the U.S. Department of Energy Office of Environmental Management a step closer to preparing one of Y-12’s largest high-risk contaminated facilities for demolition, the press release said.

The column exchange, or COLEX, structures are connected to the four-story 500,000-square-foot Alpha-4 building, which was used for uranium separation from 1944 to 1945. Workers finished installing the COLEX equipment in 1955 for lithium separation, a process that required large amounts of mercury. A significant amount of the mercury was lost into the equipment, buildings, and surrounding soils, and its cleanup is one of EM’s top priorities.

[Read more…]

Filed Under: Front Page News, Oak Ridge Office of Environmental Management, Slider, U.S. Department of Energy, Y-12, Y-12 National Security Complex Tagged With: Alpha-4, COLEX, column exchange, Dan Macias, DOE, mercury, mercury cleanup, Mercury Treatment Facility, Office of Environmental Management, U.S. Department of Energy, UCOR, Y-12 National Security Complex

Search Oak Ridge Today

Classifieds

Availability of the draft environmental assessment for off-site depleted uranium manufacturing (DOE/EA-2252)

The U.S. Department of Energy (DOE) National Nuclear Security Administration (NNSA) announces the … [Read More...]

Public Notice: NNSA announces no significant impact of Y-12 Development Organization operations at Horizon Center

AVAILABILITY OF THE FINAL ENVIRONMENTAL ASSESSMENT FOR THE OFFSITE HOUSING OF THE Y-12 DEVELOPMENT … [Read More...]

ADFAC seeks contractors for five homes

Aid to Distressed Families of Appalachian Counties (ADFAC) is a non-profit community based agency, … [Read More...]

Recent Posts

  • Anderson County Chamber Headquarters Dedication Set for October 17
  • ORISE announces winners of 2025 Future of Science Awards
  • SL Tennessee Supports New Anderson County Chamber Headquarters
  • ORAU 2025 Pollard Scholarship recipients announced
  • Democratic Women’s Club Hosts State Rep. Sam McKenzie
  • Flatwater Tales Storytelling Festival Announces 2025 Storytellers
  • Laser-Engraved Bricks Will Line Walkway of New Chamber Headquarters
  • Democratic Women’s Club to Discuss Climate Change, Energy and Policy
  • Estate Jewelry Show at Karen’s Jewelers Features Celebrity Jewelry
  • Keri Cagle named new ORAU senior vice president and ORISE director

Recent Comments

  • Raymond Mitchell on City manager’s ‘State of the City’ canceled due to weather
  • Raymond Mitchell on City manager’s ‘State of the City’ canceled due to weather
  • Mysti M Desilva on Crews clearing roads, repairing water line breaks
  • Mel Schuster on Crews clearing roads, repairing water line breaks
  • Cecil King on Crews clearing roads, repairing water line breaks
  • Rick Morrow on Roads, schools, businesses closed after heavy snow
  • Diana lively on Free community Thanksgiving Dinner on Nov. 25
  • Anne Garcia on School bus driver arrested following alleged assault on elementary student
  • Raymond Dickover on Blockhouse Valley Recycling Center now open 6 days per week
  • Mike Mahathy on School bus driver arrested following alleged assault on elementary student

Copyright © 2025 Oak Ridge Today