Initial Study on Simulated Borate Concentrate In-Drum-Drying by Microwave
Engineering Science
Volume 3, Issue 4, December 2018, Pages: 51-57
Received: Oct. 11, 2018; Accepted: Dec. 28, 2018; Published: Jan. 29, 2019
Views 783      Downloads 99
Meilan Jia, China Institute of Radiation Protection, Taiyuan, China
Chao Gao, China Institute of Radiation Protection, Taiyuan, China
Hongxiang An, China Institute of Radiation Protection, Taiyuan, China
Honghui Li, China Institute of Radiation Protection, Taiyuan, China
Article Tools
Follow on us
Drying the Borate Concentrate in Drum is one of the most useful method to reduce the total waste volume. Microwave is one heat option, To determinate the feasibility for Microwave-Drying of Simulated Borate Concentrate in Drum, a Sequence of tests have been designed, including pre-test in microwave oven and batch-test in 12L microwave device. Liquid temperature, evaporation rate and moisture have been recorded along with the drying process. The result said that it is feasible for microwave drying simulated borate concentrate in drum. For borate concentrate will generate “water diffusion barrier layer” during the drying process, batch-feeding is the prefer option; the most suitable batch-feeding amount is a compromise for evaporation, gravity, and intermolecular forces which affect the migration of water molecules. It is recommend that the batch feeding should be used for MDSBCD and the off gas temperature can be a sign of subsequence feeding; the first feeding must be moderate to avoid microwave reflection; the little batch-feeding amount is, the better product characters are. In the test, it is reasonable that the material can be supplemented or the drying be stopped when the temperature of ending vent raises to 72°C and keep increase rapidly; the first-feeding can be 2kg SBC, after- feeding can be 1kg SBC.
Simulated Borate Concentrate, Microwave Drying, In-Drum Drying, Waste Treatment
To cite this article
Meilan Jia, Chao Gao, Hongxiang An, Honghui Li, Initial Study on Simulated Borate Concentrate In-Drum-Drying by Microwave, Engineering Science. Vol. 3, No. 4, 2018, pp. 51-57. doi: 10.11648/
Copyright © 2018 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License ( which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Su Linsen, Yang Huiyu, Wang Fusheng, etc. 900MW PWR nuclear power plant system and equipment (Vo1 1) [M]. Beijing: Atomic Energy Press, 2005, 224-253. (in Chinese).
Gu Zhongmao. Waste treatment and disposal [M]. Beijing: Atomic Energy Press, 2011. (in Chinese).
Gong Li, Cheng Li, etc. Study on cement solidification of boric acid waste liquid and concentrated waste liquid produced by PWR nuclear power station [J]. Radiation Protection, 1995, 1. (in Chinese).
Huang Laixi, He Xinwen, Chen Dejin, etc. Radioactive solid waste management in Dayawan nuclear power station [J]. Radiation Protection, 2004, 2. (in Chinese).
IAEA. Methods for the Minimization of Radioactive Waste from Decontamination and Decommissioning of Nuclear Facilities [R]. Vienna: IAEA, 2001, 37-38.
IAEA. Innovative Waste Treatment and Conditioning Technologies at Nuclear Power Plants [R]. Vienna: IAEA, May, 2006: 30-31.
IAEA. Processing of Nuclear Power Plant Waste Streams Containing Boric Acid [R]. Vienna: IAEA, 1996.
Frank. Richard. Radioactive Waste Management for U.S. EPR [R]. WM Conference, 2008.
H. Gen thner, A. Best, W. Lins. Solidification of Low Level Salt Solutions With Microwave [EB/OL]: Google Scholar.
Wetteborn K, Gutmann A, Linn H, et al. Apparatus for Concentrating Salt-Containing Solutions with Microwave Energy: US Patent, 6080977[P]. 2000-06-27.
Giessmann Christian. Microwave in-Drum Drying [J]. Rad waste Solutions, 2007:21-24.
Szalo Anton, Zatkulak Milan. Borate Compound Content Reduction in Liquid Radioactive Waste from Nuclear Power Plants with VVER Reactor [R]. Slovenia, September, 2000.
T. L. White, J. B. Berry. Microwave Processing of Radioactive Materials-1[R]. Dallas, Texas: American Chemical Society, 1989.
G. S. Sprenger, V. G. Eschen. Critical Operating Parameters for Microwave Solidification of Hydroxide Sludge [R]. Technology Development, Waste Projects EG&G Rocky Flats, Rocky Flats Plant, 1993-10-26.
Dixon D, Erle R, Eschen V, et al. Microwave Solidification Development for Rocky Flats Waste [EB/OL].:, 1994-04.
Erle R R, Eschen V G, Sprenger G S. Optimization of Microwave Heating in an Existing Cubicle Cavity by Incorporating Additional Wave Guide and Control Components [R]. USDOE, 1995.
T. L. White. Microwave Applicator for in-Drum Processing of Radioactive Waste Slurry: US Patent, 5324485[P]. 1994-06-28.
Sprenger G S, Petersen R D. Microwave Waste Processing Technology Overview [EB/OL]:, 1993-02.
T. L. White, E. L. Youngblood, J. B. Berry. First Result of In-can Microwave Processing Experiments for Radioactive Liquid Wastes at Oak Ridge National Laboratory [EB/OL]:, 2010.
T. L. White, E. L. Youngblood, J. B. Berry, and A. J. Mattus. Status of Microwave Process Development for RH-TRU Wastes at Oak National Laboratory [EB/OL]:, 2010.
T. L. White. Heat Transfer Enhanced Microwave Process for Stabilization of Liquid Radioactive Waste Slurry [R]. CRADA, 1995-03-31.
RWE. In-drum Drying by Microwave [EB/OL]: Website of RWE and Nukem Nuklear publication, 2011.
Science Publishing Group
1 Rockefeller Plaza,
10th and 11th Floors,
New York, NY 10020
Tel: (001)347-983-5186