Anorganska onesnažila v odsluženemu lesu in ploščah iz dezintegriranega lesa

Humar, Miha (author)

Zaradi vedno večjega povpraševanja po lesu vedno bolj pridobiva pomen tudi odslužen les, ki ga najpogosteje porabljamo v energetske namene ali za izdelavo ivernih plošč. To surovino smo med uporabo pogosto onesnažili z različnimi kemikalijami (površinskimi premazi, biocidi, ostanki gradbenega materiala ...), ki povzročajo težave po koncu življenjske dobe. Z namenom osvetliti anorganska onesnaževala v slovenskem odsluženem lesu, smo na deponiji Ljubljanskega podjetja Snaga odvzeli 30 vzorcev in jih kvalitativno ter kvantitativno analizirali z rentgenskim fluorescenčnim spektrometrom (XRF). Te vrednosti smo primerjali s koncentracijo onesnažil v ploščah iz dezintegriranega lesa, ki smo jih pridobili v slovenskih lesnopredelovalnih podjetjih. V odsluženem lesu kot tudi v nekaterih uvoženih ploščah smo najpogosteje ugotovili naslednje kemijske elemente: Cl, Cr, Fe, Cu, Zn, in Pb. To nakazuje, da se vsaj del onesnaženega lesa uporabi tudi za izdelavo ivernih plošč.

• Language: Slovenian
• Keywords: onesnažila, biocidi, XRF, iverne plošče, odslužen les
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: BF - Biotechnical Faculty
• Publication status: Published
• Publication version: Version of Record
• Publication date: 01.01.2008
• Year: 2008
• Number of pages: Str. 98-102
• Numbering: Let. 60, št. 3
• PID: 20.500.12556/RUL-138520
• UDC: 674.8:504.054
• ISSN on article: 0024-1067
• COBISS.SI-ID: 1625481
• Publication date in RUL: 25.07.2022

Record is a part of a journal

• Title: Les
• Shortened title: Les
• Publisher: Zveza društev inženirjev in tehnikov gozdarstva in lesarstva Slovenije, Zveza društev inženirjev in tehnikov gozdarstva in lesarstva Slovenije, Biotehniška fakulteta, Oddelek za lesarstvo, Založba Univerze, Biotehniška fakulteta, Oddelek za lesarstvo, Založba Univerze
• ISSN: 0024-1067
• COBISS.SI-ID: 13940224

Secondary language

• Language: English
• Title: Inorganic pollutants in recovered wood and boards made of disintegrated wood

Abstract

Due to increasing demands on wood, recovered wood is becoming more and more important. It is mainly used for energetic purposes and for particle board production. This material was polluted with various chemicals (surface coatings, biocides, concrete residues...) during service life that causes difficulties at the end of service life. In order to elucidate presence of inorganic pollutants in Slovenian recovered wood, 30 specimens were collected on Company Snaga dump site, and analysed with x-ray fluorescence spectrometer (XRF). Those values were compared to the concentration of inorganic elements in boards made of disintegrated wood collected in Slovenian market. In recovered wood, as well as in imported particle boards increased concentrations of the following elements was confirmed: Cl, Cr, Fe, Cu, Zn and Pb. This indicates that at lest part of contaminated recovered wood is used for production of some particle boards.

• Keywords: pollutants, biocides, XRF, particle boards, recovered wood