| 61个电厂燃煤和灰分中的天然放射性水平及其对环境的辐射影响 |
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| 引用本文： | 李凤翔,金光宇,张建洲,刘德劭,方栋,刘原中.61个电厂燃煤和灰分中的天然放射性水平及其对环境的辐射影响[J].辐射防护,1987(4). |
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| 作者姓名： | 李凤翔 金光宇 张建洲 刘德劭 方栋 刘原中 |
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| 作者单位： | 清华大学核能技术研究所
(李凤翔，金光宇，张建洲，刘德劭，方栋)，清华大学核能技术研究所(刘原中) |
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| 摘 要： | 用中子活化分析方法测得国内61个燃煤电厂煤中~(238)U、~(232)Th 和~(40)K 的平均浓度分别为3~∞,43和121Bq/Kg,煤灰中相应核素的平均浓度分别为124、130和319Bq/kg。结合神头电厂物料平衡和大气扩散实验所得参数,计算了该厂及其它各电厂气载天然放射性流出物对周围居民造成的附加照射,造成的最大个人年有效剂量当量,绝大多数小于0.1mSv。还对粉煤灰用于建材的可行性提出了参考性意见。
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| 关 键 词： | 电厂 煤 煤灰 铀 钍 中子活化分析 气载天然放射性核素 建材 |
NATURAL RADIOACTIVE LEVEL IN COAL AND ASH FROM 61 COAL-FIRED POWER PLANTS IN CHINA AND ITS IMPACT ON THE ENVIRONMENT |
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| Li Fengxiang,Jin Guangyu,Zhang Jianzhou,Liu Deshao,Fang Dong,Liu Yuanzhong.NATURAL RADIOACTIVE LEVEL IN COAL AND ASH FROM 61 COAL-FIRED POWER PLANTS IN CHINA AND ITS IMPACT ON THE ENVIRONMENT[J].Radiation Protection,1987(4). |
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| Authors: | Li Fengxiang Jin Guangyu Zhang Jianzhou Liu Deshao Fang Dong Liu Yuanzhong |
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| Abstract: | The concentrations of ~(238)U,~(232)Th and ~(40)K in coal and ashfrom 61 coal-fired power Plants in China were analyzed by means oflnstrumental Neutron Activation Analysis(INAA).The average values are 38,43,121 Bq/kg in coal and 124,130,319Bq/kg in ash,respectiv-ely.On the base of the experiments of material equilibrium and atmos-Pheric diffusion in Shentou coal-fired power Plant,the additional exp-osure doses to the residents around the plant produced by the naturalradionuclides released from Shentou and other coal-fired power plantswere calculated.The maximum of individual effective dose equivalent isless than 0.1mSv/a.The suggestion on feasibility of utilization of theseashes in building materials is given. |
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| Keywords: | Coal-Fired Power Plant Coal Fly Ash Uranium Thorium Neutron Activation Analysis Naturalradionuclide Building material |
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