ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Division Spotlight
Aerospace Nuclear Science & Technology
Organized to promote the advancement of knowledge in the use of nuclear science and technologies in the aerospace application. Specialized nuclear-based technologies and applications are needed to advance the state-of-the-art in aerospace design, engineering and operations to explore planetary bodies in our solar system and beyond, plus enhance the safety of air travel, especially high speed air travel. Areas of interest will include but are not limited to the creation of nuclear-based power and propulsion systems, multifunctional materials to protect humans and electronic components from atmospheric, space, and nuclear power system radiation, human factor strategies for the safety and reliable operation of nuclear power and propulsion plants by non-specialized personnel and more.
Meeting Spotlight
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver Downtown
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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June 2025
Nuclear Technology
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May 2025
Latest News
Argonne’s METL gears up to test more sodium fast reactor components
Argonne National Laboratory has successfully swapped out an aging cold trap in the sodium test loop called METL (Mechanisms Engineering Test Loop), the Department of Energy announced April 23. The upgrade is the first of its kind in the United States in more than 30 years, according to the DOE, and will help test components and operations for the sodium-cooled fast reactors being developed now.
M. Kelm, B. Oser, S. Drobnik, W. D. Deckwer
Nuclear Technology | Volume 51 | Number 1 | November 1980 | Pages 27-32
Technical Paper | Chemical Processing | doi.org/10.13182/NT80-A32553
Articles are hosted by Taylor and Francis Online.
For the destruction of nitric acid in radioactive waste solutions from the reprocessing of nuclear fuel, a batch process has been developed using formic acid as a reducing agent. The main reaction products are N2O and CO2, which can be discharged into the environment. The process has been tested on a lab scale with simulated and real waste solutions as well as on a pilot scale with simulated solutions. Nitric acid turnovers between 80 and 90% are obtained. The final nitrate concentrations in high- and medium-level waste solutions are below 0.5 and 0.2 mol.ℓ−1, respectively. The induction period that occurs when starting the reaction can be described by a reaction rate equation. For our special conditions it lies within the range of a few seconds. The loss of solid particles and formic acid into the off-gas during the whole process amounts to a few parts per million. Corrosion tests under realistic conditions have shown that Incoloy 825 is an appropriate material for the denitration vessel.
