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Analiza vzrokov onesnaženja lesnih ostankov z anorganskimi onesnažili v lesnem podjetju : diplomski projekt
Hočevar, Simon (Author), Humar, Miha (Mentor) More about this mentor... This link opens in a new window, Oven, Primož (Reviewer)

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Abstract
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.

Language:Slovenian
Keywords:les, onesnaževala, XRF, klor, lesni ostanki
Work type:Diploma project paper (mb13)
Tipology:2.11 - Undergraduate Thesis
Organization:BF - Biotechnical Faculty
Year:2010
Publisher:[S. Hočevar]
Number of pages:VIII, 24 f.
Place:Ljubljana
UDC:674.8:504.054
COBISS.SI-ID:1847689 This link opens in a new window
Views:861
Downloads:234
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Secondary language

Language:English
Title:Analysis of wooden residues pollution causes with inorganic pollutants in a wood processing company : B. Sc. thesis
Abstract:
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.

Keywords:wood, pollutants, XRF, chlorine, wooden residues

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