ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
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Division Spotlight
Education, Training & Workforce Development
The Education, Training & Workforce Development Division provides communication among the academic, industrial, and governmental communities through the exchange of views and information on matters related to education, training and workforce development in nuclear and radiological science, engineering, and technology. Industry leaders, education and training professionals, and interested students work together through Society-sponsored meetings and publications, to enrich their professional development, to educate the general public, and to advance nuclear and radiological science and engineering.
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!
Latest Magazine Issues
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Nuclear Science and Engineering
August 2024
Nuclear Technology
Fusion Science and Technology
Latest News
Four million nuclear jobs by 2050: Who will do them?
Industry leaders from around the globe met this month to discuss the talent development that will be necessary for the long-term success of the nuclear industry.
The International Conference on Nuclear Knowledge Management and Human Resources Development, hosted by the International Atomic Energy Agency, was held in Vienna earlier this month. Discussed there was the agency’s forecast for nuclear capacity to more than double—or hopefully triple—by 2050 and the requirement of more than four million professionals to support the industry.
George D. Cremeans
Nuclear Technology | Volume 87 | Number 4 | December 1989 | Pages 745-754
Technical Paper | TMI-2: Decontamination and Waste Management / Radioactive Waste Management | doi.org/10.13182/NT89-A27667
Articles are hosted by Taylor and Francis Online.
The March 1979 accident at Three Mile Island Unit 2 and the subsequent 10-yr cleanup generated ∼8706 m3 (∼2300000 gal) of radioactively contaminated water, herein referred to as accident-generated water (AGW). Although most, if not all, of this inventory could be decontaminated to acceptable regulatory levels governing river discharge and released to the Susquehanna River, a settlement agreement with the city of Lancaster specifically prohibited the utility from doing so prior to an acceptable environmental evaluation by the U.S. Nuclear Regulatory Commission. To dispose of this large water inventory, nine alternative disposal methods were evaluated. This evaluation considered each method’s technical feasibility, environmental effect, cost, and public acceptance. On the basis of these criteria, as well as political and institutional considerations, disposal of the AGW by forced evaporation and collection of the evaporated solids was selected as the most acceptable method. The selected method is designed to provide a decontamination factor of 1000 to the radioactive particulates in the AGW. The system consists of (a) a vapor recompression distillation unit to distill the AGW in a closed cycle process and collect the purified distillate for subsequent release by vaporization, (b) an auxiliary evaporatory to further concentrate the bottoms from the main evaporator, (c) a flash vaporizer unit to flash the purified distillate to the atmosphere in a controlled and monitored manner, (d) a blender/dryer to produce a dry solid from the concentrated waste, and (e) a packaging system to prepare and package the solid waste in containers acceptable for shipment and burial at a commercial low-level radioactive waste disposal site. The projected time span for AGW disposal operations is ∼2 yr, allowing for scheduled availability of the 8706-m3 (2300000-gal) inventory and planned system maintenance time. The estimated volume of waste generated, packaged, and shipped during this operation is ∼145 tonnes (∼160 t). The waste conforms to the burial requirements for class A and transportation requirements for low specific activity radioactive material.
