Analiza anorganskih onesnažil v proizvodnji lesnih ploščnih kompozitov

diplomsko delo

Tine Slavec (Author), Miha Humar (Reviewer), Boštjan Lesar (Mentor), Sergej Medved (Co-mentor)

Abstract

V proizvodnji lesnih ploščnih kompozitov se poleg svežega lesa uporabljajo tudi lesni ostanki in odslužen les. V eni od preteklih raziskav so ugotovili, da več kot polovica vzorcev presega mejne vrednosti glede na direktivo o predelavi nenevarnih trdih odpadkov v trda goriva (Ur.l.RS 96//2014), zato smo pri tej diplomski nalogi skušali ugotoviti, v kateri stopnji predelave pride do onesnaževanja. Za raziskavo smo uporabili vzorce iz proizvodnje vlaknenih plošč slovenskega proizvajalca. Vzorce smo odvzeli v štirih časovnih intervalih z dvoletnim zamikom. Pridobili smo vzorce iz različnih faz izdelave plošče in sicer sekance različnih vrst lesa, oblepljena vlakna, neoblepljena vlakna in končno, brušeno in nebrušeno ploščo. Te vzorce smo analizirali z rentgenskim fluorescenčnim spektrometrom-XRF. Rezultate smo primerjali z mejnimi vrednostmi objavljenimi v uredbi o predelavi nenevarnih odpadkov (Ur.l.RS 96//2014) in priporočili EPF (EPF, 2014). Ugotovili smo, da je vstopna surovina zelo kvalitetna in čista. Z večjim onesnaževanjem se prične pri oblepljenih vlaknih, ampak se skozi nadaljnjo obdelavo onesnaženost zmanjša.

Keywords

les;onesnažila;XRF;lesni kompoziti;

Data

Language:	Slovenian
Year of publishing:	2018
Typology:	2.11 - Undergraduate Thesis
Organization:	UL BF - Biotechnical Faculty
Publisher:	[T. Slavec]
UDC:	630*862
COBISS:	2942089
Views:	677
Downloads:	238
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Analysis of inorganic pollutants in the manufacture of wood based composites
Secondary abstract:	In production of wood bard composites beside fresh wood also recovered and old wood material can be used. In one of the past research we figured out that more than half examples exceeds limit values by directive of processing non-dangerous hard waste (Ur.l.RS 96//2014). In our diploma thesis we tried to determine where in the process pollution happens. For research we used samples from production of fiber boards from Slovenian manufacturer. We took samples in fourth time intervals with two years. Examples were taken from different phases of boards production like chips from different kinds of wood, fibers with and without chemicals and finally grind and non grind boards. We analyzed them with rentgen florescent spectrometer - XRF. To check our results we used directon of processing non - dangerous waste (Ur.l.RS 96//2014) and EPF recomendation (EPF, 2014). Results show that incoming raw material is high quality and clean. More pollution starts with chemical fibers but after further processing pollution starts to decrease.
Secondary keywords:	wood;pollutants;XRF;wood composites;
Type (COBISS):	Bachelor thesis/paper
Study programme:	0
Thesis comment:	Univ. v Ljubljani, Biotehniška fak., Oddelek za lesarstvo
Pages:	VIII, 25 f.
ID:	10959926