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The Removal of Heavy Metals from Treated Wood by Biological Methods(I) - Removal of Copper from CCA, CCFZ Treated Wood -  

Son, Dong-Won (임업연구원)
Lee, Dong-heub (임업연구원)
Kang, Chang-Ho (임업연구원)
Publication Information
Journal of the Korean Wood Science and Technology / v.30, no.2, 2002 , pp. 151-157 More about this Journal
Abstract
The removing copper from CCA, CCFZ treated wood were tested with Tyromyces palustris. The shacking culture, solid culture, and stationary culture methods were tested to removal of copper in CCA, CCFZ treated wood. The steam pressure method and oxalic acid method were tested as pretreatment. To investigate of copper removal mechanism, the oxalic acid that produced by T. palustris and combination with copper was examined on stationary culture that contained CCA and CCFZ treated wood chips. Oxalic acid increased copper removing rate of T. palustris as pretreatment. Stationary culture had most removal effectiveness among the culturing methods. The removal rate of copper on bioreactor was 61% on 7 days. Copper-oxalate was detected on liquid culture, which show the oxalate from liquid of culture combined with copper from treated wood. It would be related to the removal of copper from treated wood by T. palustris.
Keywords
Tyromyces palustris; CCA; CCFZ treated wood; removal of heavy metal; copper removal mechanism; oxalic acid;
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