Waste Management

The Department of Energy’s Office of Environmental Management announced yesterday that waste processing operations have resumed at the Integrated Waste Treatment Unit (IWTU) at the Idaho National Laboratory Site. The resumption of operations follows the completion of two maintenance campaigns at the radioactive liquid waste treatment facility.

The Pennsylvania Department of Environmental Protection (DEP) expressed its confidence in the decommissioning work taking place at the damaged Three Mile Island Unit 2 during a recent meeting of the TMI-2 Community Advisory Panel (CAP). “We cannot be more pleased with the progress being made,” said Dwight Shearer, director of the DEP, during the meeting, held on September 13 in Middleton, Pa.

According to the Department of Energy’s Office of Environmental Management, two contractors at its Hanford Site in Washington state have finished a first-time relay of test glass as the site prepares to vitrify—or immobilize in glass—millions of gallons of radioactive and chemical waste from its large underground tanks.

Video: Watch an “instant replay” of the test glass relay here.

The International Atomic Energy Agency has found that Japan’s planned approach for recycling and disposing of soil and radioactive waste from decontamination activities after the 2011 Fukushima Daiichi nuclear accident is consistent with the agency’s safety standards.

The Energy Communities Alliance (ECA), which advocates for communities adjacent to or impacted by Department of Energy sites, is asking the department to conduct an independent analysis evaluating the impacts of delaying the implementation of its statutory interpretation of high-level radioactive waste, which holds that some waste from the reprocessing of spent nuclear fuel may be classified as non-HLW.

Tokyo Electric Power Company has added an English-language version of its Fuel Debris Portal Site to its website. According to the company, the portal is intended to deliver information pertaining to melted nuclear fuel debris at the Fukushima Daiichi site to the public in an easy-to-understand manner.

The Department of Energy’s Office of Environmental Management will begin using drones for the first time to internally inspect radioactive liquid waste tanks at the department’s Savannah River Site in South Carolina. Inspections were previously done using magnetic wall-crawling robots.

Finland’s waste management organization Posiva announced that it has begun a trial run of placing spent fuel canisters in the Onkalo geologic repository, which is located near the Olkiluoto nuclear power plant in southwestern Finland. No spent fuel will be disposed of during the trial run, which is expected to last several months.

Crews at the Department of Energy’s Idaho National Laboratory Site recently completed work to transfer baskets of spent nuclear fuel ahead of a September 30 deadline.

Workers at the Department of Energy’s Hanford Site in Washington state recently finished filling the last large concrete basin at the K Reactor Area with cement-like grout. The basin stored reactor fuel rods from historic plutonium production in the 1950s.

The Nuclear Regulatory Commission noted two low-level regulatory violations during a recent inspection of the San Onofre Nuclear Generating Station, which is currently undergoing decommissioning in Southern California. The violations involved the shipment of two reactor pressurizers from San Onofre to EnergySolutions’ disposal facility in Clive, Utah.

A collaboration between Savannah River Nuclear Solutions (SRNS) and Savannah River National Laboratory (SRNL) is making progress toward processing non-aluminum spent nuclear fuel (NASNF) as part of the site’s accelerated basin de-inventory mission. SRNL is the managing and operating contractor at the Department of Energy’s Savannah River Site in South Carolina.

Waste Management Symposia announced that the theme of next year’s Waste Management Conference (WM2025) will be “Empowering A Sustainable Future—Advanced Technologies, AI, and Workforce Development across the Nuclear Landscape.” To be held in Phoenix, Ariz., March 9–13, the conference will showcase how new technologies and the evolving digital world are transforming the global nuclear landscape, supply chains, infrastructure, and work norms.

Team members at Oak Ridge National Laboratory achieved a milestone with the removal of a lower reactor vessel, according to a U.S. Department of Energy news release.

Workers with the Oak Ridge Office of Environmental Management (OREM) contractor UCOR successfully lifted and removed the lower reactor vessel from the Oak Ridge Research Reactor, also known as Building 3042.

The OPTIMUS-H transportation cask from NAC International. (Photo: NAC)

NAC International announced that the Nuclear Regulatory Commission has certified a highly shielded version of the company’s OPTIMUS (Optimal Modular Universal Shipping) transportation package for radioactive materials and waste. NAC’s OPTIMUS-H is now approved under 10 CFR Part 71 with Certificate of Compliance (CoC) USA/9392/B(U)F-96, effective Aug. 5, 2024.

The OPTIMUS-H CoC follows licensing approvals of the cask in Canada and Australia. Previously, the lightweight version of the OPTIMUS package, OPTIMUS-L, received certification from the NRC and the Canadian Nuclear Safety Commission.

NAC unveiled its first OPTIMUS to the public at the 2020 Waste Management Conference in Phoenix. Since then, NAC has delivered 22 OPTIMUS-L and nine OPTIMUS-H systems to support North American packaging and transportation projects.

The International Atomic Energy Agency announced on Aug. 7 that its experts have confirmed that the tritium concentration in the latest batch of water to be released from the Fukushima Daiichi nuclear power plant is far below Japan’s operational limit. Tokyo Electric Power Company (TEPCO) began discharging the treated and diluted water that day.

The Nuclear Regulatory Commission is providing guidance to nuclear power plant licensees looking to use decommissioning trust fund (DTF) money to dispose of major reactor components like steam generators and reactor vessel heads while the plant is still operational.

On August 5, the NRC issued the interim staff guidance Use of the Decommissioning Trust Fund During Operations for Major Radioactive Component Disposal (REFS-ISG-2024-01), which provides the NRC staff’s regulatory position regarding the use a reactor’s DTF for the disposal of major radioactive components while the plant is still operational. Under NRC regulations, the DTF may be accessed solely for decommissioning expenses as defined in 10 CFR 50.2, unless an exemption is granted by the NRC.

The Department of Energy has issued a request for information to gather input on its proposed package performance demonstration, which is intended to demonstrate the robustness of spent nuclear fuel transportation casks in hypothetical accident conditions. By simulating severe accident scenarios, the DOE said it intends to show to the public and stakeholders the safety and reliability of transporting SNF by rail, heavy-haul truck, and barge.

Workers at the Savannah River Site have recently completed the replacement of a piece of equipment that the Department of Energy said in a July 31 press release is “essential for operations in the site’s H Canyon chemical separations capable facility.”

Work crews have started retrieval of radioactive and chemical waste from a third set of underground storage tanks at the Hanford Site, according to the Department of Energy's Office of Environmental Management. Contractor Washington River Protection Solutions (WRPS) is retrieving and transferring more than 325,000 gallons of waste from the single-shell Tank A-101 at the site's A Tank Farm. The waste is being sent to a newer double-shell tank for continued safe storage.

Retrieval activities began one month after workers emptied the site’s 21st single-shell tank. Waste removed from the 21 tanks totals about 3 million gallons.