Abstract
Many chemicals and methods have been used to remove copper, chromium, and arsenic from wood that is impregnated with CCA. However, in these studies, it can be seen that deep eutectic solvents (DES) are not used in the removal of copper, chromium, and arsenic. In this study, the effect of DES on the removal of copper, chromium, and arsenic from CCA-impregnated wood and the changes that are caused by DES solutions in wood samples were investigated. DES solutions, glycerol (GL) as a hydrogen bond donor (HBD), and choline chloride as a hydrogen bond acceptor (HBA), were used. According to the results that have been obtained, it can be seen that the DES that was prepared with GL:CL was less effective in the remediation process, and 65.5% Cu, 30% Cr, and 10% As, were removed. It was found in FTIR analysis and lignin determination that the lignin ratio of the wood samples decreased after the remediation process. It seems that the crystallinity ratio of the wood samples that were treated with GL:CL decreased significantly.
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