地下工程降氡技术的应用与现状

摘要/Abstract

摘要： 与开放空间相比,地下工程内空气氡含量较高,为保障内部工作和生活人员的身体健康,需进行环境空气降氡处理。目前活性炭吸附技术及静电除尘技术为地下工程局部降氡的主要技术。为保证除氡效率,活性炭吸附设备存在占地过大、能耗过高等问题,而静电除氡技术只能去除环境中未结合态氡子体,对氡气浓度及结合态氡子体无影响。通过对现有技术的介绍和对比,对新型金属有机骨架(MOFs)材料及气体膜分离组件在地下工程局部降氡的可行性进行了分析。

关键词: 地下工程, 降氡, 活性炭, 静电, MOFs, 膜分离

Abstract: The radon concentration is higher in the underground facilities than in the open space. In order to protect people who live or work in the underground space from radiation hazard, the radon reduction practice has become a necessity. Presently, active carbon radon adsorption technique and electric radon elimination technique are the two main techniques used in the radon reduction area. Active carbon adsorption device would take too much space and be high energy consumption when high efficiency was needed. Electric radon elimination technique had high efficiency in eliminating combined type radon decay products, but it had no influence on the concentration of radon and uncombined type radon decay products. Based on the present technique, metal-organic frameworks (MOFs) and membrane gas separation module were introduced and the possibilities of these new materials and technique were also analyzed.

Key words: underground facilities, radon reduction, active carbon, electrostatic, MOFs, membrane separation

中图分类号:

X591

孙祁, 盖文佳, 江灏, 闫洋洋, 黄欣杰, 梁云, 祝娇, 苏默龙. 地下工程降氡技术的应用与现状[J]. 辐射防护, 2020, 40(5): 462-469.

SUN Qi, GAI Wenjia, JIANG Hao, YAN Yangyang, HUANG Xinjie, LIANG Yun, ZHU Jiao, SU Molong. Application and status of radon reduction techniques in underground facilities[J]. RADIATION PROTECTION, 2020, 40(5): 462-469.

参考文献

[1] 王津, 刘娟, 陈永亨. 氡及其子体的形成机制及危害研究进展[J]. 环境与健康杂志, 2011,28(9):832-834.
WANG Jin, LIU Juan, CHEN Yongheng. Research process on formation and harming mechanism of radon and its decay products[J]. J Environ Health, 2011,28(9):832-834.
[2] 李晓燕. 中国地下工程氡污染及其健康危害评价[D]. 贵阳:中国科学院研究生院, 2015.
LI Xiaoyan. A study of radon level and its health effects to people in underground buildings in China[D]. Chinese Academy of Science,2015.
[3] 王起伟, 袁丽, 董娴,等. 地下工程中氡的防治措施[J]. 暖通空调, 2013,43:276-278.
[4] Fukuda S, Fukuda Y, Hayakaw T, et al. The super-Kamiokande detector [J]. Nuclear Instruments and Methods in Physics Research A, 2003,501:418-462.
[5] Udovicic V, Grabez B, Dragic A, et al. Radon problem in an underground low-level laboratory[J]. Radiation Measurements, 2009,44:1009-1012.
[6] 亓伟, 耿世彬, 高虎杉,等. 国防工程降氡技术研究现状及应用[J]. 洁净与空调技术, 2011,(1):38-42.
QI Wei, GENG Shibing, GAO Hushan, et al. The research status and application of radon reductiontechnology in defense projects[J].CC&AC, 2011,(1):38-42.
[7] Pushkin K, Akerlof C, Anbajagane D, et al. Study of radon reduction in gases for rare event search experiments[J]. Nuclear Inst. and Methods in Physics Research, A, 2018,903:267-276.
[8] 周青芝, 赵桂芝, 肖德涛. 活性炭局部降氡效率理论模型研究[J]. 原子能科学技术, 2012,46(8):1005-1008.
ZHOU Qingzhi, ZHAO Guizhi, XIAO Detao. Study on theoretical model for decreasing radon efficiency of active carbon[J]. Atomic Energy Science and Technology, 2012,46(8):1005-1008.
[9] CHU M C, Kwan K K, Kwok M W, et al. The radon monitoring system in Daya Bay Reactor Neutrino Experiment[J]. Nuclear Inst&Merhods in Physics Research A, 2016,808:156-164.
[10] Steinitz G, Piatibratova O, Gazit-Yaari N. Influence of a component of solar irradiance on radon signals at 1 km depth,Gran Sasso, Italy[J]. Proceedings Mathematicl Physical & Engineering Sciences, 2013, 469(2159): 20130411.
[11] Pia Loaiza. Low radioactive at the Modane Underground Laboratory[J]. AIP Conference Proceedings, 2005,782(1):10.1063/1.2060459.
[12] 龙慧佳, 肖德涛, 单健,等. 活性炭变压吸附法降低空气中的氡气[J]. 核电子学与探测技术, 2016,4(36):363-366.
LONG Jiahui, XIAO Detao, SHAN Jian, et al. Reducing radon in air with pressure swing adsorption of active carbon[J]. Nuclear Electronics & Detection Technology, 2016,4(36):363-366.
[13] 王云祥,曾志,张磊,等.低温活性炭降氡技术研究[J]. 原子能科学技术,2017,51(11):2107-2112.
WANG Yunxiang, ZENG Zhi, ZHANG Lei, et al. Study on radon adsorption of activated carbon in low temperature condition [J]. Atomic Energy Science and Technology,2017,51(11): 2107-2112.
[14] Yuji Yamada, Akira Koizumi, Koji Ishikawa, et al. Development of a radon trap device using a corona discharge[J]. Radiation Protection Dosimetry, 2005,117(4):414-418.
[15] 崔晶晶. 基于不同类别过滤单元的空气净化器净化特性试验研究[D]. 东华大学,2016.
CUI Jingjing. Experimental study on filtration performance of air cleaner based on different types of air filter units[D]. Donghua Univerisity, 2016.
[16] Kazuki Iwaoka, Shinaji Tokonami, Tetsuo Ishikawa, et al. Mitigation effects of radon decay products by air cleaner[J]. J Radioanal Nucl Chem, 2013,295:639-642.
[17] 王秉权, 史文举, 王福成,等. 除尘除氡子体净化器的研究[J]. 有色金属(矿山部分), 1987,(5):44-49.
[18] 耿世彬, 亓伟, 欧阳特辉,等.地下工程静电除氡原理与实验[J]. 建筑科学与工程学报, 2013,30(1):122-126.
GENG Shibin, QI Wei, OUYANG Tehui, et al. Principle and experiment of electrostatic radon elimination in underground engineering[J]. Journal of Architecture and Civil Engineering, 2013,30(1):122-126.
[19] LI Yuan, GENG Shibing, LUO Bowen, et al. Research on electrostatic-filtration radon elimination techniques in underground space[J]. International Forum on Energy,Enviroment and Sustainable Development, 2016:24-30.
[20] LIU G,V Chernikova, YANG L, et al. Mixed matrix formulations with MOF molecular sieving for key energy-intensive seperations[J]. Nature Materials, 2018,17(3):283.
[21] ZHAI F, ZHENG Q, Chen Z, et al. Crystal transformation synthesis of a highly stable phonate MOF for selective adsorption of CO₂[J]. Crystengcomm,2013,15(11):2040-2043.
[22] Nguyen H G T, Schweitzer N M, Chang C Y, et al. Vanadium-Node-Functionalized UiO-66:A Thermally Stable MOF-Supported Catalyst for the Gas-Phase Oxidative Dehydrogenantion of Cyclohexene[J]. Acs Catalysis,2015,4(8):2496-2500.
[23] ZENG Xiaofei, CHEN Fei, CAO Dapeng. Screening metal-organic frameworks for capturing radioactive gas Rn in indoor air[J]. Jouranal of Hazardous Materials, 2019,366:624-629.
[24] CHEN Linjiang, Paul S Reiss, Samantha Y, et al. Seperation of rare gases and chiral molecules by selective binding in porous organic cages[J]. Nature Materials, 2014,13(10):1-7.
[25] Simgen H. Radon assay and purification techniques[J]. AIP Conf. Proc. 2013,1549:102-107.
[26] Richard W Baker, Brice Freeman, Jay Kniep, et al. CO₂ capture from natural gas power plants using selective exhaust gas recycle membrane designs[J].International Journal of Greenhouse Gas Control, 2017,66:35-47.
[27] Ryohei Shindo, Kazukiyou Nagai. Gas separation membranes[M]. Encyclopedia of Polymeric Nnomaterials, 2013:1-8.
[28] Paolo Gabrielli, Matteo Gazzani, Marco Mazzotti. On the optimal design of membrane-based gas separation processes[J]. Journal of Membrane Science, 2017,526:118-130.
[29] 北京放射性核素实验室. 一种大气氙富集纯化方法、装置及碳分子筛的制备方法:CN 109665505 A[P]. 2019-04-23.
[30] 王孝娃. 纳米多孔材料对放射性氡吸附性能的研究[D].江苏:苏州大学, 2015.
WANG Xiaowa. Study on Nano-porous materials for radon adsorption properties[D]. Soochow University,2015.
[31] 陈占营, 黑东炜, 王建龙. CTBT大气放射性氙监测技术进展[J]. 现代应用物理, 2018, 9(3):1-11.
CHEN Zhanying, HEI Dongwei, WANG Jianlong. Progress of CTBT atmospheric radioactive Xenon monitoring technology[J]. Modern Applied Physics, 2018, 9(3):1-11.
[32] 段翠佳, 曹义鸣, 介兴明,等. 金属有机骨架材料/聚酰亚胺混合基质膜的制备及气体分离性[J]. 高等学校化学学报, 2014, (35):1584-1589.
DUAN Cuijia, CAO Yinming, JIE Xingming,et al. Preparation and gas seperation properties of metal-ornanic frameworks/polyimide mixed membranes[J]. Chemical Journal of Chinese Universities, 2014, (35):1584-1589.