Coal is one of the main fossil fuel resources and remains the most important contributor to global power generation but coal utilization has severe negative impacts, mostly due to the release of CO2 ...and toxic elements into the environment. This means that determining the quality of coal is important to address the environmental and health problems related to coal combustion. Coal samples from the Velenje coalmine, one of the largest actively mined coal basins in Central Europe, were divided into organic rich and inorganic rich fractions according to the percentage of carbon. Oxides of the major elements (SiO2, Al2O3, Fe2O3 MgO, CaO, Na2O, K2O, TiO2, P2O5, MnO, Cr2O3), toxicologically and environmentally relevant elements (As, Ba, Co, Cu, Hg, Mo, Ni, Pb, Th, U, V, Zn, Se) and other trace elements (Ce, Cs, Dy, Er, Eu, Gd, La, Nb, Nd, Pr, Rb, Sm, Sr, Tb, Y, Zr) were measured in sample digests using inductively coupled plasma mass spectrometry (ICP-MS). The concentrations of the majority of analyzed elements were either equal to or below the global average for coal. Exceptions were Sr (1090 ± 510 μg g−1, 9 times higher), Ba (301 ± 184 μg g−1, 2 times higher) and Pb (9.12 ± 17.0 μg g−1, 1.4 times higher) in inorganic rich coal and Mo (7.76 ± 4.76 μg g−1, 3.5 times higher) and U (5.24 ± 3.23 μg g−1, 1.8 times higher) in organic rich samples. Eighteen elements (Ag, Au, Be, Bi, Cd, Ga, Hf, Ho, Lu, Sb, Sc, Se, Sn, Ta, Ti, Tm, Yb, W) were below the limit of detection in >70% of the samples. Speciation analysis revealed the presence of several organoarsenic compounds in the organic rich samples, with the tetramethylarsonium ion (TETRA, 0.01–1.10 μg g−1) and trimethylarsine oxide (TMAO, 0.01–0.29 μg g−1) as the most abundant. A comparison with coal samples from the Senovo, Kanižarica, and Trbovlje coal mines in Slovenia and from the Sokolov Basin, (Czech Republic) revealed that Velenje contains much higher amount of organoarsenic compounds (34.8 ± 16.9%) in comparison to the others (4.45 ± 4.19%).
•We investigated element composition in inorganic and organic rich lignite.•Major, minor and trace elements were determined in Velenje lignite.•Values of measured elements are comparable to world coal, except U and Mo.•Unexpected organoarsenic compounds were found in Velenje lignite.•Organoarsenic compounds in Velenje lignite are related to bacterial activity.
Konec šestdesetih let minulega stoletja so bili na severnem obrobju Trbovelj pri gradnji stanovanjske soseske Volkova Loka naključno odkriti bronasti predmeti, ki jih je mogoče opredeliti kot manjši ...depo mešane sestave. Sestavljajo ga fragmentirani vrbovolistna sulična ost, meč tipa Arco in dva jezičastoročajna srpa ter odlomka konice srpa in rezila meča. Na podlagi tipološko-kronološke analize predmetov je depo uvrščen v horizont II slovenskih depojev oz. v stopnjo Ha A1.
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Scholarships for the technical professions. Statements by Silva Velkavrh from the ETI Izlake company, Marjetka Bizjak, the headmistress of the Trbovlje Secondary ...Technical and Occupational School; and by two students from the Trbovlje Technical Secondary School, Tadej Medved and Anja Lavrih.
Original language summary:
Štipendije za tehnične poklice; izjava Silva Velkavrh, Eti Izlake, Marjetka Bizjak, ravnateljica Srednje tehniške in poklice šole Trbovlje; Tadej Medved, dijak Tehnične gimnazije Trbovlje, Anja Lavrih, dijakinja Tehnične gimnazije Trbovlje.
Dvestoletno rudarjenje je Trbovljam prineslo številne gospodarske, demografske in prostorske spremembe, ki so še posebej opazne v jugovzhodnem predelu nekdaj intenzivnega izkoriščanja premoga. S ...pomočjo osnovne geografske analize prostorskega, demografskega in gospodarskega razvoja, analizo javnega mnenja in strokovnih pogledov na reševanje in opisom uspešnega angleškega projekta urbane prenove smo poskušali najti učinkovit model in vsebino prihodnjega razvoja obravnavanega območja.
As an introduction, two degraded urban areas are presented. The first, planning unit seven, is situated in the southeastern part of Trbovlje town. The other, called Speke, lies to the south of ...Liverpool. The basis for the concept and context of urban renewal model are given by comparison between the newest Slovene and British spatial planning legislation, analyses of the Design management plan Nasipi and Supplementary Planning Document Edge Lane West, and review of different approaches to local communities’ involvement. Based on all the thus far collected data, a questionnaire about quality of living, knowledge of planning system and area perception was produced. Initially, it was used in a pilot residential area Žabjek, and afterwards, a shortened version was carried out in units lying in other parts of the town. Other stakeholders also expressed their ideas about how to develop planning unit seven. Speke Garston as another example of successful urban renewal is given. In conclusion guidelines for method and context development of urban renewal are given for planning unit seven, with emphasis on the Žabjek estate.
Na začetku diplomskega dela sta predstavljeni dve degradirani urbani območji, planska celota sedem v jugovzhodnem delu Trbovelj in Speke, južni predel Liverpoola. Izhodišča za zasnovo modela in ...vsebine urbane prenove so primerjava najnovejše slovenske in britanske prostorske zakonodaje s poudarkom na izvedbenih dokumentih, analiza Ureditvenega načrta Nasipi oziroma Dodatnega planskega dokumenta za Edge Lane West in prikaz slovenskega in angleškega načina sodelovanja javnosti pri izdelavi dokumentov. Na pilotnem območju Žabjeka so bile ob pomoči vprašalnika pridobljene informacije o dejanskem stanju v prostoru, kakovosti bivalnega okolja, poznavanju sistema prostorskega planiranja in dojemanja, v krajši obliki tudi na manjšem vzorcu iz preostalih predelov Trbovelj. Mnenje so podali akterji urejanja prostora. Dodatno izhodišče je uspešen primer urbane prenove Speke Garstona. V sklepu so predlagane smernice za način in vsebino urbane prenove planske celote sedem s posebnim poudarkom na stanovanjski soseski Žabjek.
Extended description:
Tok reke Save, Zasavje, Zagorje, Trbovlje, Hrastnik, zunanjost rudnika, rudarji prihajajo iz rova, jašek, vozički, zunanjost šole, zunanjost rudnika, kolo vitla, dimniki, ...žerjav, gradbišča novih tovarn, praznovanje v hrastniškem premogovniku, panorama Hrastnik.
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The 20th anniversary of the first workers committee and workers' self-management in Zasavje; miners, a coal mine; construction sites for factories.
Original language summary:
20 letnica ustanovitve prvega delavskega sveta in delavskega samoupravljanja v Zasavju; rudarji, premogovnik, gradbišča tovarn.
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