Recovered wood is frequently contaminated with biocides and therefore its use is limited. Even more, wood, impregnated with classical chromated copper arsenate (CCA) preservatives is classified as a hazardous waste, therefore solutions for reuse or recovery of this material are sought. One of the options, discussed in this paper is liquefaction and further applications of liquefied wood containing biocide remainings. In order to elucidate this possibilty, spruce and beech wood was impregnated with liquefied CCB treated and untreaded spruce wood of various concentrations and exposed to wood decay fungi according to the EN 113 procedure. In paralel, the leaching experiments (ENV1250-2) were performed as well. The results do not clearly show that liquefied wood is bio-inactive. In most cases the mass loss by fungal attack is decreased compared to the untreated controls. On the other hand, copper leaching from spruce wood, impregnated with the liquefied CCB treated wood was significantly reduced. Thus, there are indications that the liquefied wood could be utilized as a binding agent for inorganic biocides. Keywords: liquefied wood, wood decay fungi, wood preservation, leaching, CCB, copper Prikupljeno uporabljeno drvo cesto je onecisceno biocidima te je njegova ponovna uporaba ogranicena. Osim toga, drvo impregnirano klasicnim krom-bakar-arsenat (CCA) zastitnim sredstvima klasifi cirano je kao opasni otpad te je nuzno pronaci rjesenje za ponovnu uporabu ili sanaciju tako oneciscenog drva. Jedna od mogucnosti, prezentirana u ovome radu, jest utekucenje drva i daljnja primjena tako utekucenog drva koje sadrzava preostale biocide. Radi razjasnjenja te mogucnosti, smrekovo i bukovo drvo impregnirano je utekucenom nezasticenom smrekovinom i utekucenom smrekovinom zasticenom krom-bakar-boratom razlicitih koncentracija. Tako obradeno drvo izlozeno je djelovanju gljiva, sukladno postupku opisanom u normi EN 113. Paralelno je proveden eksperiment ispiranja (ENV 1250-2). Rezultati istrazivanja nisu jasno pokazali da utekuceno drvo nije bioaktivno. U vecini je slucajeva gubitak mase zbog djelovanja gljiva smanjen u usporedbi s neobradenim kontrolnim uzorcima. Osim toga, ispiranje bakra iz smrekovine impregnirane utekucenim drvom zasticenim CCB-om znatno je smanjeno. Prema tomu, postoje znakovi da se utekuceno drvo moze upotrijebiti kao vezivno sredstvo za anorganske biocide. Kljucne rijeci: utekuceno drvo, gljive truleznice, zastita drva, ispiranje, CCB, bakar