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《China Powder Science and Technology》 2011-01
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Disposal of Radioactive Waste Liquid Containing ~(90)Sr With Perlite Powder Used as Adsorbent

Lu Xirui1a,Cui Chunlong1b,Song Gongbao1c, Wu Zhihua1d,Shu Xiaoyan1d,Zhang Dong2(1.a.National Defense Key Discipline Lab of Nuclear Waste and Environmental Safety,b.School of Civil Engineering and Architecture,c.School of National Defense Science and Technology,d.School of Materials Science and Engineering, Southwest University of Science and Technology,Mianyang 621010; 2.Institute of Nuclear Physics and Chemistry,China Academy of Engineering Physics,Mianyang 621900,China)  
In order to investigate the adsorptive power of radioactive nuclear waste liquid with perlite powder used as adsorbent,Sr(NO3)2 was used as the simulacrum for radioactive waste liquid of middle level containing 90Sr,and the natural perlite with different size was used as adsorbent.The adsorptive experiment of Sr2+ was conducted using perlite powder.The chemical compositions of perlite,micro-structures of the as-gained samples and adsorptive results of Sr2+ were irrespectively characterized by means of X-ray fluorescence spectrometry,scanning electron microscopy and atomic absorption spectrometry.The results indicated that the disposal of Sr2+ was quickly carried by perlite powder as adsorptive materials under the condition of pH=7,the relation between the treatment effect on Sr2+ particle size was consistent,the best treatment effect in which the remove rate was 89% after 5 min was found when the size of perlite was 75~100 μm.Perlite powder was a better candidate for the disposal of neutral solution containing Sr2+.
【Fund】: 国家高技术研究发展计划(863计划)重点项目 编号:2009AA050703;; 国家自然科学基金委员会-中国工程物理研究院联合基金项目 编号:10676030;; 绵阳市科技计划项目 编号:09Y002-4
【CateGory Index】: X771
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