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Official Journal of the Japan Wood Research Society

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Removal of trichloroethylene from aqueous solution by pyrolyzed Japanese cedar bark


The bark of Japanese cedar (Cryptomeria japonica D. Don) was heated in an N2 atmosphere at 300‡–900‡C for 3h to investigate the surface properties of the pyrolyzed residuces and their ability to remove trichloroethylene (TCE) from aqueous solutions. The specific surface areas (S N) and total pore volumes (V N) of the pyrolyzed barks steadily increased with rising pyrolysis temperature; no significant differences in the average pore diameters (D N) were observed at higher temperatures (600‡–900‡C). The adsorption capacities of the pyrolyzed residues for TCE were determined under batch mode conditions using an aqueous solution containing 500Μg TCE dm−3. The adsorption data were well fitted to the Freundlich equation. The adsorption capacity of the bark pyrolyzed at 900‡C was about five times larger than that of commercial activated carbon.


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Correspondence to Yasuji Kurimoto.

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Kurimoto, Y., Doi, S. & Aoyama, M. Removal of trichloroethylene from aqueous solution by pyrolyzed Japanese cedar bark. J Wood Sci 47, 76–79 (2001).

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Key words

  • Removal of trichloroethylene
  • Adsorption
  • Pyrolyzed bark
  • Japanese cedar
  • Cryptomeria japonica D. Don