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
Thermal Hydraulics
The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
Meeting Spotlight
Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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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Jul 2024
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Nuclear Science and Engineering
August 2024
Nuclear Technology
Fusion Science and Technology
Latest News
ARPA-E announces $40 million to develop transmutation technologies for UNF
The Department of Energy’s Advanced Research Projects Agency–Energy (ARPA-E) announced $40 million in funding to develop cutting-edge technologies to enable the transmutation of used nuclear fuel into less-radioactive substances. According to ARPA-E, the new initiative addresses one of the agency’s core goals as outlined by Congress: to provide transformative solutions to improve the management, cleanup, and disposal of radioactive waste and spent nuclear fuel.
El-Sayed A. Manaa
Nuclear Science and Engineering | Volume 195 | Number 6 | June 2021 | Pages 664-677
Technical Paper | doi.org/10.1080/00295639.2020.1825899
Articles are hosted by Taylor and Francis Online.
The Gattar area is classified as one of the most important Egyptian uranium resources. In this work, the leaching of uranium from Gattar granitic ore containing 1138 ppm U using NaNO3 solution has been applied. The leaching factors of nitrate in the presence and absence of hydrogen peroxide as oxidant were studied and optimized. The obtained data show that uranium leaching in the absence of oxidants was only 46%. The main role of the peroxide is oxidizing the iron content to Fe3+ species, which is responsible for oxidizing the nonleachable U4+ to leachable U6+. Based on the obtained results with 0.005 M NaNO3 in the presence of 15 mmol l−1 H2O2 with a 4/1 liquid/solid ratio at 75°C for 6 h as optimum leaching conditions, the uranium leaching efficiency was 82.5%. The leach liquor was then subjected to an extraction step using 4% Alamine 336/kerosene. Alamine 336 extracted 92.3% from the leached uranium content. The resultant solvent was then treated with a carbonate solution to strip the loaded uranium. Finally, the carbonate solution was then treated with NaOH to precipitate the uranium species at pH 11.5.