Radwaste Solutions

Work crews at the Department of Energy's Hanford Site recently completed the first transfer of test water from the Waste Treatment and Immobilization Plant's Effluent Management Facility to the nearby Liquid Effluent Retention Facility (LERF). The transfer of 6,000 gallons was the first simulation of the process that will be used to treat secondary liquid waste from the plant’s Low-Activity Waste Facility during operations to treat tank waste.

“This is a tremendous accomplishment that culminates years of work by our team and alumni toward being ready for hot commissioning,” said Valerie McCain, project director and senior vice president for Bechtel National, Inc. “It’s an important step for the entire Hanford team and our collective mission of protecting the Columbia River and its shoreline communities.”

Bechtel National is a contractor of the DOE's Office of Environmental Management's Office of River Protection.

The Department of Energy’s Office of Environmental Management (EM) last week began accepting bids for the contract to manage the Portsmouth site in Ohio and Paducah site in Kentucky, where the former uranium enrichment plants are being decommissioned and remediated.

The final request for proposals for the Portsmouth Paducah Project Office’s Operations and Site Mission Support (OSMS) contract were issued by EM on March 25. The new contract, which has an estimated value of $2.9 billion over the 10-year performance period, will replace an existing contract currently held by Mid-America Conversion Services.

The Department of Energy reported this month that the final container of legacy transuranic waste from the Savannah River Site arrived at the Waste Isolation Pilot Plant for permanent disposal on the afternoon of April 14. The shipment capped the end of a journey for 239 shipments that began in 2011.

In all, trucks that carried the shipments weighed a combined 11,402,000 pounds and travelled more than 347,000 miles to the WIPP site.

Officials from the Department of Energy’s Office of Environmental Management recently got a firsthand look at cleanup progress being made at the Paducah Site in western Kentucky. The site is owned by the DOE, which is overseeing environmental cleanup activities there, including environmental remediation, waste management, depleted uranium conversion, and decontamination and decommissioning.

The visit by Dae Chung, associate principal deputy assistant secretary for corporate services, and other EM officials included stops at the C-400 cleaning building remediation project, the new Large Item Neutron Assay System (LINAS), and the C-333 process building deactivation.

The Nuclear Regulatory Commission has extended the deadline for comments on its new decommissioning rulemaking until August 30. The proposed rule, which would amend NRC regulations pertaining to nuclear facilities transitioning to decommissioning, was first published in the Federal Register on March 3 with deadline for comments of May 17.

An independent review of Denmark’s radioactive waste management program by an International Atomic Energy Agency team found that the country has developed a robust and well-functioning system, but that the national program needs further refinement if it is to be effectively implemented.

The government of Denmark requested the review of its waste management program to fulfil its European Union obligations requiring an independent review of EU member states’ national radioactive waste management programs. The Danish parliament adopted a resolution outlining the policy goals and activities of its national program for safely managing radioactive waste and spent nuclear fuel in 2018.

Sandia National Laboratories engineers Emily Stein, left, and Paul Mariner discuss recent results from their Geologic Disposal Safety Assessment software framework.

Ten teams of scientists from across the globe, including teams from the United States, Canada, Germany, and Taiwan, are virtually comparing software tools developed to assess the safety performance of deep geologic repositories for nuclear waste. The virtual workshop, held this month, is being conducted by members of an international collaboration called Development of Coupled Models and their Validation against Experiments, or DECOVALEX.

“The DECOVALEX initiative creates an important framework for experts in repository sciences from around the world to test and improve simulation models that are important to assessing the safety of geologic disposal,” said Jens Birkholzer, chairman of the initiative and a senior scientist at Lawrence Berkeley National Laboratory.

Waste management start-up company Deep Isolation has launched an online campaign to educate the public about nuclear waste and gain support for solving the issue to protect the environment, increase energy security, and remove a barrier to nuclear energy.

The website Solve Nuclear Waste aims to increase awareness about the need for permanent nuclear waste disposal to help secure a clean energy future. Visitors to the site can sign a petition that the company will share with elected officials and decision-makers to demonstrate that the public cares about the issue.

Canada’s Nuclear Waste Management Organization (NWMO) has completed a deep borehole drilling program at the two sites in Ontario under investigation for potentially hosting a deep geological repository to hold the country’s spent nuclear fuel. The NWMO said that Canada’s top geoscientists are leading the studies, in which approximately eight kilometers of core samples were pulled from the bedrock in the Wabigoon-Ignace area and the Saugeen Ojibway Nation (SON)–South Bruce area.

The Waste Isolation Pilot Plant’s Emergency Operations Center (EOC) and Joint Information Center (JIC) were activated on April 9 following an abnormal event that occurred during routine waste handling at the Department of Energy’s WIPP repository for transuranic waste, near Carlsbad, N.M.

The Nuclear Regulatory Commission will integrate two separate rulemaking activities concerning the disposal of low-level radioactive waste, issuing a “re-proposed” rule that consolidates updates to 10 CFR Part 61, “Low-Level Radioactive Waste Disposal,” and proposed changes to the requirements for the near-surface disposal of greater-than-Class C (GTCC) waste.

The Nuclear Regulatory Commission has announced that it will hold public meetings this month to present its proposed regulations for nuclear power plants transitioning from operating status to decommissioning.

The meetings will be held on April 12 in Chicago, April 19 in Atlanta, and April 21 in Plymouth, Mass. The meetings will run from 6 p.m. to 8 p.m. local time and will include an opportunity for members of the public to ask questions. Those unable to attend in person can participate via Microsoft Teams. Details on meeting venues and virtual participation are provided in the public meeting notices at the above links.

Dounreay Site Restoration Ltd. (DSRL) and the Robotics and Artificial Intelligence in Nuclear (RAIN) Hub, a consortium of universities led by the University of Manchester, are working together on the development of robots capable of accessing areas that are inaccessible or unsafe for humans to work in. The robots will be used to inspect and characterize Dounreay’s laboratories, buildings, and structures as the United Kingdom prepares to decontaminate and decommission the nuclear site.

The Nuclear Regulatory Commission has approved the transfer of the operating license of the shutdown Kewaunee nuclear power plant from Dominion Energy to EnergySolutions. The transfer, which includes the general license for the Wisconsin site’s spent fuel storage facility, is contingent upon approval by the Wisconsin Public Service Commission.

EnergySolutions entered into an agreement with Dominion in May 2021 to acquire the Kewaunee site for decommissioning.

Depending on the size and complexity of a decommissioning project, the transportation and disposal of radioactive waste will have an oversized impact on planning, schedule, and budget. The scope of decommissioning a site contaminated with radioactive material begins and ends with the proper and safe packaging of waste and subsequent transportation from the site to the final disposal location. Once all of the waste is gone from the site, the compliance exercise can be completed and the site released from controls (i.e., the radioactive materials license is terminated and the site is decommissioned).

Idaho Gov. Brad Little, attorney general Lawrence Wasden, Idaho legislators, county and city representatives, and the Department of Energy’s cleanup program management staff gathered at the Idaho National Laboratory site on March 30 to mark the completion of a cleanup project that helps protect the Snake River Plain Aquifer and fulfills a commitment with the State of Idaho.

Utah-based EnergySolutions is joining Radiation Safety and Control Services (RSCS) in the decommissioning of NS Savannah, the world’s first nuclear-powered merchant ship, currently berthed at the Port of Baltimore in Maryland. EnergySolutions announced on March 29 that a joint venture of the two companies, Nuclear Ship Support Services, is conducting the final phases of decommissioning the ship’s reactor, which was defueled in 1975 but remains in place.

Holtec International and Hyundai Engineering & Construction have signed an agreement to cooperate in the area of nuclear plant decontamination and decommissioning.

Under the teaming agreement, Hyundai E&C will participate in D&D activities at Holtec-owned decommissioning sites in the United States to build its capabilities and experience in preparation for decommissioning projects in South Korea, which will be undertaken by the two companies. The agreement also provides for the two companies to further expand their cooperation internationally.

The remediation of two former Soviet-era uranium mining sites in Kyrgyzstan has been completed on schedule and below budget, despite difficulties caused by the COVID-19 pandemic, the European Bank for Reconstruction and Development (EBRD) announced on March 28.

Last fall, scientists from Sandia, Los Alamos, and Lawrence Berkeley national laboratories began the third phase of a years-long experiment to understand how salt and very salty water behave near hot nuclear waste containers in a salt-bed repository. Initiated in 2017, the Brine Availability Test in Salt (BATS) project is part of a spent nuclear fuel research campaign within the Department of Energy’s Office of Nuclear Energy (DOE-NE).