The Investigation on remediation of out-of service CCA treated utility poles

SUMMARY The Investigation on Remediation of Out of Service CCA Treated Utility Poles In this study, the effects of Eastern Blacksea Region's climate and soil properties on time in service of utility poles, the fungi species and decay types in utility poles and the amount of copper, chrome and arsenic remediated from CCA treated wood samples were determined. The climate index and decay maps of Trabzon, Rize and Artvin were determined by analyzing climate data for each city. The soil mechanical properties, soil pH and soil water holding capacity were investigated in soil samples taken from Trabzon, Rize and Artvin cities and their effects on time in service of utility poles were determined. The decay types and fungi species were determined in samples taken either from utility poles in service or out of service utility poles in storage area in Arsin, Trabzon. The CCA treated yellow pine wood samples prepared in three different size were remediated by several different pH's of 10 chemicals for 1, 3, 7 and 14 days period and the amounts of removed copper, chrome and arsenic from CCA treated wood samples were investigated. In addition, the effects of wood samples' size, remediation chemicals' pH and remediation period on the amount of removed copper, chrome and arsenic were determined. The results indicated that choromotropic acid, oleic acid and phosphoric acid were found the best chemicals while ammonium sulfate, humic acid sodium salt and resorcinol were found the least effective, among the 10 chemicals used in this study, in terms of remediation. Keywords: CCA, Yellow Pine, Copper Tolerant Fungi, Decay Types, Climate And Soil Properties, Remediation