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Microwave desorption and regeneration methods for activated carbon with adsorbed radon

  • Hui Yang
  • Jian ShanEmail author
  • Jinglin Li
  • Shangting Jiang


This paper introduces a microwave desorption and regeneration methods for activated carbon with adsorbed radon. The influencing factors and objectivity in the process of desorption were tested, and the feasibility of the microwave regeneration of activated carbon with adsorbed radon was analyzed. The results showed that activated carbon with adsorbed radon can be heated uniformly by microwave, after 20 min of heating, the temperature differences between different depths in the activated carbon were within ± 6 °C; When the temperature reaches 150 °C, the microwave takes three minutes, and the electric heating takes 9 min, the energy consumption of microwave heating is lower, and the cooling performance after microwave heating was better than that after electric heating. A better desorption rate was achieved with a higher microwave power, a constant airflow rate (an airflow rate that is too high or too low will reduce the desorption rate), a higher moisture content and a lower activated carbon packing density. The effect of microwave desorption activated carbon is remarkable, in our experiment, the maximum desorption rate of the activated carbon reached 97.6%;The loss rate of the activated carbon after regeneration was low, and the total loss rate was 2.65% after five cycles of continuous absorption and desorption. The results can provide guidance for the development of key desorption technologies for implementation in radon reduction devices based on activated carbon.


Activated carbon Radon Microwave Regeneration 


  1. Ania, C.O., Parra, J.B., Menéndez, J.A., et al.: Effect of microwave and conventional regeneration on the microporous and mesoporous network and on the adsorptive capacity of activated carbons. Microporous Mesoporous Mater. 85, 7–15 (2005)CrossRefGoogle Scholar
  2. Cao, L., Zhuang, J.H., Huang, X.M., et al.: Study on treatment of toluene containing toluene by activated carbon adsorption-microwave desorption. J. Xi’an Univ. Archit. Technol. 04, 499–503 (2008)Google Scholar
  3. Cao, X.Q., Lu, H.X., Huang, X.M.: Study on the heating behavior of toluene—loaded activated carbon by microwave irradiation. Environ. Sci. Technol. 23(05), 18–21 (2010)Google Scholar
  4. Chen, M.S., Wang, J.H., Ning, P., et al.: Study on heating of toluene—loaded activated carbon by microwave irradiation. Chin. J. Environm. Eng. 02, 98–101 (2007)Google Scholar
  5. Feng, X.: Study on radon adsorption technology with high efficiency activated carbon [D]. University of South China (2015)Google Scholar
  6. Foo, K.Y., Hameed, B.H.: A rapid regeneration of methylene blue dye-loaded activated carbons with. J. Anal. Appl. Pyrol. 98, 123–128 (2012)CrossRefGoogle Scholar
  7. Fu, Y.C., Qian, W., Yang, H.R.: Study on microwave desorption and regeneration of activated carbon. Guangdong Chem. Ind. 44(08), 125–126 (2017)Google Scholar
  8. Liu, P.: Activated carbon expanded graphite adsorbent treatment of biochemical wastewater and adsorbent microwave uv regeneration [D]. Harbin Institute of Technology (2017)Google Scholar
  9. Tan, Y.L., Xiao, D.T., Shan, J., et al.: Research on the perturbation phenomenon while tracing the radon concentration in real time. Stoch. Environ. Res. Risk Assess. 29(3), 755–760 (2014)CrossRefGoogle Scholar
  10. Wang, S.N.: Study on the factors affecting the heating behavior of activated carbon in microwave field. Gansu Sci. Technol. 24(21), 98–101+48 (2008)Google Scholar
  11. Wang, N.F., Hua, J., Yi, H.Q., et al.: Microwave heating for the preparation, regeneration and modification of activated carbon. Chem. Ind. Eng. Progress 06, 624–628 (2004)Google Scholar
  12. Wang, Q.B., Zhu, W.K., Qu, J.Y., `et al: Characterization of pore structure of several activated carbons with different radon adsorption capabilities. At. Energy Sci. Technol. 45(11), 1382–1387 (2011)Google Scholar
  13. Wu, R.X.: A simple method for deriving maxwell’s velocity distribution law. College Phys. 09, 7–11 (1982)Google Scholar
  14. Xie, D.F., Xiao, D.T., Qiu, S.K.: Research on factors affecting dynamic adsorption of inert gas by activated carbon. Radiat. Prot. 31(02), 105–108+114 (2011)Google Scholar

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© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • Hui Yang
    • 1
  • Jian Shan
    • 1
    Email author
  • Jinglin Li
    • 1
  • Shangting Jiang
    • 1
  1. 1.School of Nuclear Science and TechnologyUniversity of South ChinaHengyangChina

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