Journal of the Korean Wood Science and Technology

The Korean Society of Wood Science & Technology (한국목재공학회)
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Changes of Distribution Coefficients of Cu, Cr, and As in Different Soil Matrix in a Laboratory Scale

  • Kang, Sung-Mo (Quality Control & Standardization Team, Korea Forest Research Institute) ;
  • Ra, Jong-Bum (Dept. of Interior material Engineering, College of Science and Engineering, Jinju National University) ;
  • Kim, Suk-Kuwon (Quality Control & Standardization Team, Korea Forest Research Institute)
  • Received : 2008.09.11
  • Accepted : 2008.12.19
  • Published : 2009.03.25
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Abstract

Chromated copper arsenate (CCA), a long history of successful preservative, have raised environmental concerns. Adsorption characteristics of domestic soils for chromium, copper, and arsenic were assessed by measuring distribution coefficient ($K_d$) values of these metal components in a laboratory scale. The results revealed that $K_d$ values were higher in chromium, followed by arsenic and copper in soil matrix. Different soil matrixes resulted in varying mobilities of CCA components. The values of $K_d$ for all three metals increased with organic matter contents. The results suggest that the mobility of metal components may be very limited to the surface area adjacent to CCA-treated wood due to their fairly large distribution coefficient ($K_d$). However, the metal components would be persistent and accumulated in the soil, resulting in high chemical concentration in service area of treated wood.

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References

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