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Atmospheric emissions of toxic elements (As, Cd, Hg, and Pb) from brick making plants in China

机译：来自中国砖制造厂的有毒元素（AS，CD，HG和PB）的大气排放

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摘要

A multiple-year emission inventory of As, Cd, Hg, and Pb from brick making plants in China has been first established for the period 2008-2013 by employing the available emission factors and annual activity data. The atmospheric emissions of toxic elements were determined by a bottom-up methodology with the provincial-level statistical data on raw materials (coal, coal gangue, coal ash and clay) consumption and the reasonable emission factors of toxic elements. The provincial average concentrations of toxic elements in different raw materials were elaborately reviewed and calculated with multiple statistical mean calculation methods. Simulation experiments were performed to determine the emission factors of toxic elements from different raw materials. The results show that the total national emissions of As, Cd, Hg, and Pb from brick-making plants have been increasing to 644.05 t, 94.96 t, 9.71 t, and 3269.79 t in 2013, at an annual average growth rate of 22.8%, 25.6%, 19.2%, and 24.6% due to the lack of atmospheric pollutant control devices, respectively, which are higher than that of emissions from coal-fired plants (except for Hg) in China. Coal ash is the main source of As, Cd, and Pb emissions, accounting for 87.9%, 89.5%, and 88.4% of the respective total emissions due to the high consumption with high concentration and emission factor of TE. Shandong, Henan, Hubei, Hunan, Sichuan and Guangxi are the largest emitting provinces. Advanced technologies and integrated countermeasures to control toxic elements from brick making plants are urgently needed.
机译：通过雇用可用排放因子和年度活动数据，首先在2008 - 2013年度从中国的砖块制作厂的多年排放清单，从中国的砖制造工厂制定。有毒元素的大气排放由与省级级统计数据（煤，煤矸石，煤灰和粘土）消费和有毒元素合理排放因子的省级统计数据决定。用多种统计平均计算方法精确审查和计算不同原料中​​省级毒性元素的省级浓度。进行仿真实验以确定不同原料中​​有毒元素的排放因子。结果表明，从砖砌厂的全国国家排放量，砖砌植物的全国排放量增加到2013年的644.05吨，94.96吨，9.71吨和3269.79吨，年平均增长率为22.8％由于缺乏大气污染物控制装置，25.6％，19.2％和24.6％，其高于中国燃煤植物（除HG除外）的排放量高。煤灰是AS，CD和PB排放的主要来源，占由于TE的高浓度和排放因子的高消耗量，占各种排放量的87.9％，89.5％和88.4％。山东，河南，湖北，湖南，四川和广西都是最大的散发省份。迫切需要先进的技术和集成对策，以控制砖块制作植物的有毒元素。

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  • 来源
    《RSC Advances》 |2015年第19期|共9页
  • 作者

    Zhou Chuncai; Liu Guijian; Fang Ting; Lam Paul K. S.; Lam James C. W.;

  • 作者单位

    Univ Sci &

    Technol China Sch Earth &

    Space Sci CAS Key Lab Crust Mantle Mat &

    Environm Hefei 230026 Anhui Peoples R China;

    Univ Sci &

    Technol China Sch Earth &

    Space Sci CAS Key Lab Crust Mantle Mat &

    Environm Hefei 230026 Anhui Peoples R China;

    Univ Sci &

    Technol China Sch Earth &

    Space Sci CAS Key Lab Crust Mantle Mat &

    Environm Hefei 230026 Anhui Peoples R China;

    City Univ Hong Kong Dept Biol &

    Chem State Key Lab Marine Pollut Kowloon Hong Kong Peoples R China;

    City Univ Hong Kong Dept Biol &

    Chem State Key Lab Marine Pollut Kowloon Hong Kong Peoples R China;

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  • 正文语种 eng
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