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Anorganska onesnažila v odsluženih oknih = Inorganic pollutants in used windowsLesar, Boštjan ; Humar, MihaKrožno gospodarstvo in uporaba sekundarnih surovin postajata vedno polj pomembna. Uporaba odslu-ženega lesa za materialno izrabo je trenutno še zelo slabo izkoriščena. Večino odsluženega lesa se ... namreč pora-bi v energetske namene. Eden od potencialnih virov odsluženega lesa so tudi stara lesena okna. Večino oken se v današnjem času zamenja zaradi neustreznih energetskih karakteristik, medem ko je les večine zamenjanih oken še brez znakov razkroja. Težavo pri uporabi lesa odsluženih oken za proizvodnjo novih izdelkov predstavljajo predvsem površinski premazi. V raziskavi smo preverili vpliv starosti, tipa in površinske obdelave na delež onesnažil. Iz okenskih profilov smo najprej odstranili vse nelesne materiale, profile razžagali po debelini, ter s tem preverili, kako globoko v les so prodrla anorganska onesnažila. Les smo analizirali z rentgenskim fluorescenčnim spektrometrom (in določili deleže posameznih anorganskih onesnažil (Cr, Cu, Cl, Fe, Zn, Pb). Rezultati so pokazali, da odslužena okna vsebujejo anorganska onesnažila zgolj na površini (do 5 mm globoko), količine onesnažil močno variirajo glede na starost oken in uporabljeno površinsko zaščito. Raziskava je pokazala, da so odslužena okna lahko surovina za proizvodnjo novih izdelkov in materialov, ob pogoju, da pred uporabo odstranimo površinski sloj.Source: Les = Wood. - ISSN 0024-1067 (Letn. 69, št. 2, 2020, str. 49-57)Type of material - article, component part ; adult, seriousPublish date - 2020Language - slovenianCOBISS.SI-ID - 44827907
Author
Lesar, Boštjan |
Humar, Miha
Topics
anorganska onesnažila |
odslužena okna |
kaskadna raba lesa |
les |
les |
inorganic pollutants |
used windows |
cascading use of wood |
wood |
wood
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Lesar, Boštjan | 28503 |
Humar, Miha | 19106 |
Source: Personal bibliographies
and: SICRIS
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