Browse > Article

Solvent Extraction of Preservative Components from CCA Treated Wood  

Kim, Gyu-Hyeok (College of Life and Environmental Sciences, Korea University)
Kong, Il-Gon (Dongwha Enterprise Co., Ltd.)
Ra, Jong-Bum (Department of Forest Products Engineering, Chinju National University)
Cho, Jae-Sung (Institute of Life Science & Natural Resources, Korea University)
Kim, Jae-Jin (Department of Wood Science, University of British Columbia)
Publication Information
Journal of the Korean Wood Science and Technology / v.31, no.4, 2003 , pp. 50-56 More about this Journal
Abstract
This research was performed to select an appropriate agent to extract preservative components from CCA-treated wood, and then to evaluate the effect of reagent concentration, extracting temperature, and extracting time on the removal of chrome, copper, and arsenic from treated wood. Hydrogen peroxide was selected as the best extracting agent when considered extraction yield as well as use and environmental safety. Its extraction yield was dependent on extracting variables (temperature, concentration, and time), and a highly significant interaction existed among variables. It should be possible to optimize extraction by manipulating these extracting variables. The results may suggest that the required temperature conditions for the reasonable removal of CCA components are at least above 40℃ because extracting time is too long at low temperature (20℃). Reagent concentrations for extracting at above 40℃ should be decided by considering the extracting time.
Keywords
CCA; hydrogen peroxide; extraction; chrome; copper; arsenic;
Citations & Related Records
연도 인용수 순위
  • Reference