Anorganska onesnažila v odsluženem lesu in ploščah iz dezintegriranega lesa

diplomsko delo - visokošolski strokovni študij

Jurij Hladnik (Author), Sergej Medved (Reviewer), Miha Humar (Mentor)

Abstract

Zaradi vse večjega povpraševanja po lesu tudi odsluženi les pridobiva na pomenu; najpogosteje ga uporabljamo v energetske namene ali za izdelavo ivernih plošč. Pogosto je onesnažen z različnimi kemikalijami (površinski premazi, biocidi, ostanki gradbenega materiala), ki nam povzročajo težave po koncu življenjske dobe. Da bi ugotavljali prisotnost anorganskih onesnaževal v slovenskem odsluženem lesu, smo na deponiji Ljubljanskega podjetja Snaga odvzeli 30 vzorcev in jih kvalitativno in kvantitativno analizirali z rentgenskim fluorescenčnim spektrometrom (XRF). Vrednosti smo primerjali s koncentracijo onesnažil v ploščah iz dezintegriranega lesa, slovenskih lesnopredelovalnih podjetij. V odsluženem lesu, kot tudi v nekaterih uvoženih ploščah, smo najpogosteje ugotovili prisotnost naslednjih kemijskih elementov: Cl, Cr, Fe, Cu, Zn, in Pb. To nakazuje, da se vsaj del onesnaženega lesa uporabi tudi za izdelavo ivernih plošč.

Keywords

les;anorganska onesnažila;kemikalije;dezintegrirane plošče;XRF;

Data

Language:	Slovenian
Year of publishing:	2009
Source:	Ljubljana
Typology:	2.11 - Undergraduate Thesis
Organization:	UL BF - Biotechnical Faculty
Publisher:	[J. Hladnik]
UDC:	630*839.8
COBISS:	1780873
Views:	969
Downloads:	235
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Inorganic pollutants in disused wood and in boards made of disintegrated wood
Secondary abstract:	Because of higher demands on wood, there is increased need for disused wood as well, predominantly used for energetic purposes or for production of particleboards. Disused wood is frequently polluted with different chemicals (surface coating, biocides, remains of the construction materials, etc.), causing troubles at the end of the service life. To analyze the presence of inorganic pollutants in Slovenian disused wood 30 samples were collected on the waste site of the Snaga Company in Ljubljana. They were qualitatively and quantitatively analyzed using X-ray fluorescent spectrometry (XRF). The results were compared to the concentrations of the pollutants in the boards made of disintegrated wood. Samples of the boards were gathered from Slovenian companies. The presence of Cl, Cr, Fe, Cu, Zn and Pb elements were found in disused wood and in some imported boards as well. This indicates that at least part of the polluted wood is used also for the production of particleboards.
Secondary keywords:	wood;inorganic pollutants;chemicals;disintegrated boards;XRF;
Type (COBISS):	Undergraduate thesis
Thesis comment:	Univ. v Ljubljani, Biotehniška fakulteta, Odd. za lesarstvo
Pages:	IX, 72 f.
Keywords (UDC):	applied sciences;medicine;technology;uporabne znanosti;medicina;tehnika;agriculture and related sciences and techniques;forestry;farming;wildlife exploitation;kmetijstvo ter sorodne vede in tehnologije;forestry;gozdarstvo;forest products and their utilization;gozdni proizvodi in njihova uporaba;
ID:	21767