IN A NUTSHELL
  • 🔬 Rosatom introduces a revolutionary technology for decommissioning sodium-cooled nuclear reactors, enhancing safety and efficiency.
  • 🛠 The innovative process converts liquid radioactive sodium into a stable, solid mineral-like waste product.
  • 🌍 This breakthrough is significant for global nuclear decommissioning efforts, setting new safety and environmental standards.
  • 🚀 The technology’s first practical application is planned for the decommissioning of the BN-350 reactor in Kazakhstan.

In a groundbreaking announcement, Russian state nuclear corporation Rosatom has unveiled a new technology poised to transform the decommissioning of sodium-cooled nuclear reactors. This innovative approach not only enhances safety but also streamlines the process, a crucial advancement for countries managing aging nuclear facilities. With the ability to convert liquid radioactive sodium into a solid, mineral-like waste product, this technology promises to set new standards in nuclear decommissioning. As the world grapples with the legacy of nuclear energy, such innovations underscore the importance of safe and effective reactor decommissioning. But what does this mean for the future of nuclear energy management?

Revolutionizing Reactor Decommissioning with Solid-Phase Oxidation

The development of solid-phase oxidation technology marks a pivotal moment in the decommissioning of fast neutron reactors. Created at the Leypunsky Institute of Physics and Power Engineering for Rosatom’s fuel division, TVEL, this technology is designed to streamline the decommissioning process. Fast neutron reactors, such as Russia’s BOR-60 and the BN-600 and BN-800 at the Beloyarsk nuclear power plant, will benefit significantly from this innovation.

Fast neutron reactors utilize fast neutrons to sustain their chain reactions, unlike the thermal neutrons used in most commercial reactors. These reactors often employ liquid sodium as a coolant due to its exceptional heat transfer properties and because it does not hinder neutron speed. By converting liquid sodium into a solid, mineral-like waste product, Rosatom’s technology eliminates gas emissions and enhances safety, simplifying the decommissioning process.

This technology’s first practical application could occur in Kazakhstan, where the BN-350 reactor in Aktau is being decommissioned. With 680 cubic meters of sodium needing transformation, Rosatom’s innovation offers a solution that avoids constructing new storage facilities. Instead, the existing infrastructure can handle the decommissioning process over three to four years, underscoring the efficiency and practicality of this approach.

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Testing and Expanding the Nuclear Backend Strategy

TVEL, a key player in supplying nuclear fuel to Russian NPPs and a leader in global nuclear fuel supply, has been pivotal in advancing the “nuclear backend” strategy. Since 2019, TVEL has broadened its role in decommissioning nuclear and radiation-hazardous facilities, alongside managing radioactive waste. This comprehensive strategy involves safely handling radioactive waste, decommissioning nuclear facilities at the end of their operational life, and rehabilitating contaminated areas for future use.

The “Mineral 100/150” plant’s solid-phase oxidation technology is recognized across the Commonwealth of Independent States (CIS) and meets modern water resistance standards for waste disposal. Successfully tested in March 2024, this technology confirms the potential for scaling up and applying solid-phase oxidation to prepare sodium-cooled nuclear facilities for decommissioning. Andrey Lebezov, General Director of JSC SSC RF – IPPE, affirmed the success of these tests, highlighting the technology’s scalability and effectiveness.

By integrating this technology, Rosatom strengthens its position in the nuclear backend sector, ensuring that nuclear decommissioning not only addresses current needs but also prepares for future challenges.

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Impact on Global Nuclear Decommissioning Efforts

Rosatom’s innovation represents a significant leap in the global effort to manage nuclear decommissioning. The ability to transform radioactive sodium coolant into a stable, non-volatile waste product offers a safer, more efficient decommissioning process. This breakthrough technology could set a new global standard, influencing how countries approach the decommissioning of sodium-cooled reactors.

A key advantage of the solid-phase oxidation process is its environmental impact. By eliminating gas emissions and reducing the risk of explosions and fires, this technology prioritizes safety and environmental protection. It also simplifies the technological process, making it more accessible for widespread adoption.

The implications for countries with aging nuclear infrastructure are profound. As nuclear facilities worldwide approach the end of their operational lives, the need for effective decommissioning solutions becomes critical. Rosatom’s technology not only addresses this need but also positions Russia as a leader in nuclear innovation.

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The Future of Nuclear Energy Management

As the world transitions toward more sustainable energy sources, the management of existing nuclear facilities remains a pressing concern. Rosatom’s technological advancements in decommissioning offer a blueprint for safely managing the nuclear legacy. By focusing on technological innovation, safety, and environmental stewardship, Rosatom exemplifies how the nuclear industry can evolve responsibly.

These developments invite a broader conversation about the future of nuclear energy and its role in a sustainable energy landscape. How will countries balance the benefits of nuclear power with the challenges of decommissioning and waste management? Rosatom’s advancements present a path forward, but the global community must continue to collaborate and innovate to address these complex challenges.

As Rosatom’s technology unfolds on the global stage, its impact will be closely watched by governments, environmentalists, and energy experts. Will this breakthrough set a new standard for nuclear decommissioning worldwide, and how will it influence future nuclear policies and energy strategies? The answers to these questions will shape the future of nuclear energy management for decades to come.

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Rosemary Potter is a Chicago-based journalist for Sustainability Times, covering global sustainability challenges, environmental policy, science, business and climate resilience. A graduate of Northwestern’s Medill School of Journalism, she blends investigative depth with a global perspective. Her reporting amplifies voices driving change across borders, industries, and ecosystems. Contact: [email protected]

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