The LongOps project will develop innovative robotic technologies. Photo: UKAEA

Britain and Japan have signed a research and technology deployment collaboration to help automate nuclear decommissioning and aspects of fusion energy production. According to the U.K. government, which announced the deal on January 20, the £12 million (about $16.5 million) U.K.–Japanese robotics project, called LongOps, will support the delivery of faster and safer decommissioning at the Fukushima Daiichi reactors in Japan and at Sellafield in the United Kingdom, using long-reach robotic arms.

The four-year collaboration on new robotics and automation techniques will also be applied to fusion energy research in the two countries.

Funded equally by U.K. Research and Innovation, the U.K.’s Nuclear Decommissioning Authority, and Japan’s Tokyo Electric Power Company, the LongOps project will be led by the U.K. Atomic Energy Authority’s (UKAEA) Remote Applications in Challenging Environments (RACE) facility.

The Department of Energy is considering disposing of contaminated process equipment from its Savannah River Site (SRS) at a commercial low-level waste facility using its recent interpretation of the statutory term “high-level radioactive waste,” which classifies waste generated from the reprocessing of spent nuclear fuel based on its radiological content rather than its origin.

A four-year campaign to repatriate 161 kilograms of highly enriched uranium liquid target residue material (TRM) from Chalk River Laboratories in Ontario, Canada, to the Savannah River Site in Aiken, S.C., has been completed, the National Nuclear Security Administration (NNSA) and Atomic Energy of Canada Limited (AECL) announced on January 12.

The campaign was conducted under the U.S.-Origin Foreign Research Reactor Spent Nuclear Fuel Acceptance Program, established in 1996 to return U.S.-origin spent nuclear fuel and other weapons-grade nuclear material from civilian sites worldwide. Other partners involved in the effort included the Department of Energy’s Office of Environmental Management (EM), Canadian Nuclear Laboratories, Savannah River Nuclear Solutions (SRNS), and Savannah River National Laboratory as well as state and tribal governments.

The TRM is the by-product of the production of medical isotopes from AECL’s now-shuttered National Research Universal reactor. The repatriation of the material, begun in 2017 and completed in 2020, involved 115 separate truck shipments, covering some 150,000 miles, according to the announcements.

Here is a look back at the top stories of 2020 from our Waste Management section in Newswire and Nuclear News magazine. Remember to check back to Newswire soon for more top stories from 2020.

Waste Management section

• First-ever cleanup of uranium enrichment plant celebrated at Oak Ridge: The completion of the decades-long effort to clean up the former Oak Ridge Gaseous Diffusion Plant was celebrated on October 13, with Energy Secretary Dan Brouillette joining U.S. Sen. Lamar Alexander, U.S. Rep. Chuck Fleischmann, Tennessee Gov. Bill Lee, and other state and community leaders at the East Tennessee Technology Park, where the uranium enrichment complex once stood. Read more.

An engineered stainless steel container designed to hold LLW at Hanford. Photo: Bechtel National, Inc.

A Department of Energy report to the U.S. Congress shows that the reclassification of high-level radioactive waste could save more than $200 billion in treatment and disposal costs while allowing DOE sites to be cleaned up sooner—all still without jeopardizing public health and safety.

The report, Evaluation of Potential Opportunities to Classify Certain Defense Nuclear Waste from Reprocessing as Other than High-Level Radioactive Waste, identifies potential opportunities for the DOE to reduce risk to public and environment while completing its cleanup mission more efficiently and effectively. Those opportunities are based on the DOE’s 2019 interpretation of the statutory term HLW, which classifies waste based on its radiological characteristics rather than its origin.

Under the DOE’s interpretation of HLW, waste from the reprocessing of spent nuclear fuel may be determined to be non-HLW if the waste (1) does not exceed concentration limits for Class C low-level radioactive waste as set out in federal regulations and meets the performance objectives of a disposal facility; or (2) does not require disposal in a deep geologic repository and meets the performance objectives of a disposal facility as demonstrated through a performance assessment conducted in accordance with applicable requirements.

The Palisades nuclear plant will be permanently retired in the spring of next year. Photo: Entergy Nuclear

Entergy Corporation and Holtec International have jointly submitted an application to the Nuclear Regulatory Commission for approval of the transfer of the licenses for the Palisades nuclear plant, in Covert, Mich., to Holtec, following the plant’s permanent shutdown and defueling in the spring of 2022.

The application, dated December 23, also requests approval of the license transfer of Entergy’s decommissioned Big Rock Point facility near Charlevoix, Mich., where only the independent spent fuel storage installation (ISFSI) remains.

The Nuclear Regulatory Commission has withdrawn a proposed interpretation of its low-level radioactive waste regulations that would have permitted licensees to dispose of waste by transferring it to persons who hold specific NRC exemptions. “The proposal is being withdrawn based on the NRC staff’s assessment that the proposed changes may not benefit the regulatory framework for the disposal of low-level radioactive waste,” the NRC said in a December 17 Federal Register notice.

After releasing the proposed rule for public comment on March 6, 2020, the NRC received about 200 individual comment submissions and approximately 15,000 form letter submissions, the vast majority of which were in opposition to the proposed rule.

“We have strongly disputed the argument by various groups who misrepresented the proposal as deregulation of radioactive waste disposal,” NRC spokesperson David McIntyre told the Courthouse News Service. “This would not have changed anything, just made an existing case-by-case approval process more efficient.”

The Department of Energy’s National Nuclear Security Administration intends to prepare an environmental impact statement (EIS) evaluating alternatives for the safe disposal of 34 metric tons of surplus plutonium through its Surplus Plutonium Disposition Program (SPDP). The NNSA published in the December 16 Federal Register its intent to prepare the EIS, which will examine the agency’s preferred alternative, “dilute and dispose,” also known as “plutonium downblending,” and other identified alternatives for disposing of the material.

The NNSA is offering the public the opportunity to comment on the proposed scope of the EIS until February 1. In light of the COVID-19 health crisis, the agency will host an Internet- and phone-based virtual public scoping meeting in place of an in-person meeting. The date of the meeting will be provided in a future notice posted on the NNSA website.

The Nuclear Regulatory Commission has issued the draft report, Consolidated Decommissioning Guidance, Characterization, Survey, and Determination of Radiological Criteria (NUREG-1757, Volume 2, Revision 2), with a request for comments by February 8.

NUREG-1757, which is intended for use by applicants, licensees, and the NRC staff, was last updated in 2006. This latest revision addresses lessons learned and experience gained from the review of license termination plans, decommissioning plans, and final status surveys for licensees undergoing license termination since then.

Notice of the draft NUREG was published in the December 8 Federal Register.

Orano's Alain Vandercruyssen signs a cooperation agreement with KHNP on December 4. Photo: ORANO

With the signing of a cooperation agreement by Orano and Korea Hydro & Nuclear Power at KHNP’s headquarters in Gyeongju on December 4, France and South Korea are poised to enhance collaboration in the decontamination and decommissioning of nuclear facilities, particularly in South Korea and Europe.

Orano said that the collaboration will give it access to the expertise of KHNP engineers, as well as to KHNP’s network of providers of nuclear engineering services, particularly in the fields of robotics, process industrialization, and quality.

KHNP, in return, will benefit from Orano’s experience in preparing and carrying out nuclear dismantling, with the company providing technical assistance and supplying skills and training. South Korean engineers will be included in the Orano dismantling and services teams.