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Browns Ferry’s reactors receive subsequent license renewals
The operating licenses for the three boiling water reactors at Browns Ferry nuclear power plant, in Athens, Ala., have each been renewed by the Nuclear Regulatory Commission for an additional 20 years. The reactors, operated by the Tennessee Valley Authority, are now licensed to operate until December 2053 for Unit 1, June 2054 for Unit 2, and July 2056 for Unit 3.
A. G. Solomah
Nuclear Technology | Volume 62 | Number 3 | September 1983 | Pages 311-316
Technical Paper | Material | doi.org/10.13182/NT83-A33254
Articles are hosted by Taylor and Francis Online.
Different leaching tests (MCC-1 and MCC-2) have been conducted on a monolithic sintered modified SYNROC-B ceramic waste form containing 10 wt% simulated high-level radioactive waste in triple distilled H2O. The temperature range was 25 to 150°C. Increases in the leach rates of cesium and barium have been observed as the leaching temperature increases indicating that the leach rate should follow the empirical Arrhenius law:LRi(t) =Ki exp (-Qai/ Rt) ,where LRi(t), Ki, and Qai are the leach rate, the experimental constant, and the activation energy of the element of interest, i. The activation energies for cesium and barium are 6.62 and 3.2 kcal.mol-1, respectively. The behavior of the pH of the leachant was monitored as a function of leaching time and temperature. Increases in the fluorine ion concentration (F-) in the leachant were found to be temperature-and time-dependent functions indicating the leaching of the Teflon containers recommended by the Materials Characterization Center. These Teflon containers should be preleached before their use in leaching experiments, or other leach-resistant containers should be used.
