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Kemijska karakterizacija obcestnih sedimentov iz Idrije
ID
Oražem, Ema
(
Author
),
ID
Zupančič, Marija
(
Mentor
)
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Abstract
Idrijski rudnik živega srebra se ponaša s 500-letno bogato zgodovino rudarjenja, ki je zelo dobro vplivalo na gospodarstvo, vendar prineslo tudi veliko slabih posledic za okolje. V svojem diplomskem delu sem želela raziskati osnovne kemijske karakteristike obcestnih sedimentov s tega območja. S pomočjo termogravimetrične analize (TG analiza) sem ocenila, da vzorci vsebujejo visok delež karbonatov, precejšen pa je tudi delež organske snovi (do 10 %). V vzorcih sem določila koncentracije v zlatotopki topnih makroelementov Ca, Mg, Fe in K ter iskala povezanost med vsebnostjo teh elementov in vsebnostjo ostalih elementov, karbonatov in organske snovi. Visokih povezanosti med vsebnostjo elementov v vzorcih obcestnih sedimentov nisem zaznala. S SEM/EDS analizo sem opazovala površino in elementno sestavo delcev v vzorcu obcestnega sedimenta RS11, ki vsebuje najvišje koncentracije Hg. Opazila sem predvsem alumosilikatne delce z vsebnostjo Fe, Ca, Mg in K ter delce dolomita. Našla sem tudi delec z večjo vsebnost Hg in S.
Language:
Slovenian
Keywords:
obcestni sediment
,
potencialno strupeni elementi
,
termična analiza
,
SEM/EDS
Work type:
Bachelor thesis/paper
Typology:
2.11 - Undergraduate Thesis
Organization:
FKKT - Faculty of Chemistry and Chemical Technology
Year:
2021
PID:
20.500.12556/RUL-127092
COBISS.SI-ID:
66379011
Publication date in RUL:
17.05.2021
Views:
1913
Downloads:
149
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ORAŽEM, Ema, 2021,
Kemijska karakterizacija obcestnih sedimentov iz Idrije
[online]. Bachelor’s thesis. [Accessed 17 March 2025]. Retrieved from: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=eng&id=127092
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Language:
English
Title:
Chemical characterization of the roadside sediment from Idrija
Abstract:
The mercury mine in Idrija has a 500-year mining history, over which time it has positively impacted the economy but also brought many bad consequences for the environment. The aim of this diploma thesis is to determine the basic chemical characteristics of roadside sediments from this area. Using thermogravimetric analysis (TG analysis), I estimate that the samples contained a high proportion of carbonates and a relatively high proportion of organic matter (up to 10 %). The concentrations of the aqua regia soluble macroelements Ca, Mg, Fe and K were determined to seek correlations between the content of these elements and the content of other elements, carbonates and organic matter. No statistically high correlations were found between the element contents. The SEM/EDS analysis was used to observe the surface and elemental composition of the particles in sample RS11, which contains the highest concentrations of Hg. Mainly aluminosilicate particles containing Fe, Ca, Mg and K, along with dolomite particles, were observed. A particle with higher content of Hg and S was also noticed.
Keywords:
roadside sediment
,
potentially toxic elements
,
thermal analysis
,
SEM/EDS
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