20.500.12556/RUL-560 Analiza vzrokov onesnaženja lesnih ostankov z anorganskimi onesnažili v lesnem podjetju diplomski projekt Analysis of wooden residues pollution causes with inorganic pollutants in a wood processing company B. Sc. thesis Zaradi vse večjega povpraševanja po lesu tudi lesni ostanki in odslužen les vse bolj pridobivajo na pomenu. To surovino najpogosteje uporabljamo v energetske namene ali za izdelavo ivernih plošč. Žal je predvsem odslužen les pogosto onesnažen z različnimi kemikalijami (površinski premazi, biocidi, ostanki gradbenega ali transportnega materiala, itd). Z željo osvetliti prisotnost anorganskih onesnaževal v odsluženem lesu in lesnih ostankih smo v lesnoindustrijskem podjetju Novoles odvzeli 20 vzorcev ter 2 vzorca vrbovih klonov iz plantaž in jih kvantitativno analizirali z rentgenskim fluorescenčnim spektrometrom (XRF). Vrednosti smo primerjali z mejnimi vrednostmi onesnaževal predpisanimi v naši in EU zakonodaji in skušali pojasniti vzroke za prisotnost onesnaževal v lesu. V lesu smo z metodo XRF določili prisotnost naslednjih elmentov: Cl, Cu, Fe, Pb, Zn, Cr, Br. Ugotovili smo, da koncentracija klorovih spojin v večini lesnih ostankov presega mejno vrednost predpisano v Uredbi o predelavi nenevarnih odpadkov v trdno gorivo. Due to increasing demand for wood even the wooden residues and old wood are gaining importance. The raw material is then used for energy purposes and the production of splinter plates. It is often contaminated with various chemicals (surface coatings, biocides, residues from construction or transport, etc.). Wanting to shed some light on the presence of inorganic pollutants in old wood and wooden residues in a wood processing company (Novoles), we took 20 samples of disused wood and wooden residues, and 2 samples of willow tree clones from plantations, and analysed their quantity with an x-ray fluorescent spectrometer (XRF). We compared the values with the allowed values set by EU legislation, and tried to find reasons for the presence of pollutants in wood. Using the XRF method we determined the presence of the following chemical elements: Cl, Cu, Fe, Pb, Zn, Cr, Br. We discovered that quantity of chloro compounds in most cases exceeded the allowed value prescribed by the Regulation on the processing of innocuous waste into solid fuel. les onesnaževala XRF klor lesni ostanki wood pollutants XRF chlorine wooden residues true false false [S. Hočevar] Slovenski jezik Angleški jezik Delo diplomskega projekta/projektno delo 2014-07-11 12:26:07 2014-07-11 12:26:07 2022-07-11 10:32:08 0000-00-00 00:00:00 2010 0 Ljubljana 0 VIII, 24 f. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 674.8:504.054 1847689 dv1_hocevar_simon.pdf dv1_hocevar_simon.pdf 1 D585DBB7DD6CC6A42C217BFBB2A1B9CD 79538be60c4d3848b8800e374ad778f131be21d0066d94ff457248efbcc8f063 632291a2-a1b9-11eb-a523-00155dcfd717 20.500.12556/rul/981b0602-245a-4788-ad1e-f71d4c8c28d2 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=132396 Biotehniška fakulteta 0 0 0