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Citation |
Liu J, Liu Y, Hong C, Xu Z. China Saf. Sci. J. 2022; 32(3): 152-157. |
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Copyright |
(Copyright © 2022, China Occupational Safety and Health Association, Publisher Gai Xue bao) |
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DOI |
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PMID |
unavailable |
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Abstract |
In order to study safety of uranium tailings reservoir beach and its surrounding area, numerical analysis and experimental simulation were utilized to find the mulch with good radon control performance. With a uranium tailings in south China as an example, effects of three kinds of covering materials (zeolite, gypsum powder and fly ash) on radon exhalation from beach surface of the reservoir were compared, and the best material was selected. Then, radon control experiments under 15,20,25 Hz frequency cumulative vibration were conducted to verify difference in control performance of the mulch. The results show that different mulches have different effects in inhibiting radon exhalation rate, and for the case of same mulch depth, addition of zeolite layer to covering material results in better performance in restraining radon exhalation rate than that of gypsum powder or fly ash layer. With the increase of vibration frequency, radon control performance will be more remarkable. © 2022 China Safety Science Journal. All rights reserved. Language: zh |