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Uporaba z glivami razkrojenega lesa za biofiltracijo vode onesnažene z bakrovimi spojinami : diplomsko delo - univerzitetni študij = Use of wood decayed by fungi for biofiltration of copper compounds poluted water : graduation thesis - university studiesRupnik, LauraTežke kovine, kot so na primer bakrove in kositrove spojine, ki zaidejo v vodni sistem, so strupene za vodne organizme ter zmanjšajo učinkovitost bioloških čistilnih naprav. Raziskali smo možnost, da ... bi kot biofilter ali absorbent uporabili z glivami preraščen les. S presejalnim testom smo na hranilnem gojišču določali vpliv kositrovih spojin na rast pisane ploskocevke (Trametes versicolor), ogljene kroglice (Hypoxylon fragiforme), bukovega ostrigarja (Pleurotus ostreatus), bele hišne gobe (Antrodia vaillantii) ter navadne tramovke (Gloeophyllum trabeum). Zaradi visoke fungicidnosti in nedostopnosti analiznih tehnik smo nadaljnji test biofiltracije opravili le z bakrovimi raztopinami. Tako smo določili vpliv glivnega razkroja na absorpcijo bakrovih učinkovin na delno razkrojeni les, ter osvetlili vpliv časa namakanja in koncentracije bakrovih učinkovin na absorpcijo le-teh v okuženo in neokuženo lesno maso. Za substrat smo uporabili mešanico bukovega in smrekovega lesa ter pšeničnih otrobov ter ga inokulirali z ogljeno kroglico in belo hišno gobo; uporabili pa smo tudi plesniv substrat. Substrat smo prelili z vodnimi raztopinami z različnimi koncentracijami bakra (0 ppm, 5 ppm, 10 ppm, 25 ppm, 50 ppm in 100 ppm) ter ga pustili namakati različno dolgo (5 min, 15 min in 45 min ter 7 dni in 14 dni). Pri 7 dnevnem in 14 dnevnem namakanju smo izvedli preizkus še s posušenim substratom. Količino absorbiranega bakra v substratu ter preostanek bakra v vodi smo nato izmerili z rentgensko fluorescenčno analizo (XRF). Ugotovili smo, da je kontrolni substrat absorbiral največ bakrovih učinkovin. Presenetil pa je plesniv substrat, ki se je po daljšem namakanju izkazal kot najbolj učinkovit. Najslabše se je odrezal z belo hišno gobo preraščeni substrat.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [L. Rupnik], 2010Language - slovenianCOBISS.SI-ID - 1836169
Author
Rupnik, Laura
Other authors
Humar, Miha |
Pohleven, Franc
Topics
les |
glive |
biofiltracija |
bakrove spojine |
wood |
fungi |
biofiltration |
copper based compounds |
copper based compounds
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Library/institution |
City | Acronym | For loan | Other holdings |
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BF, Department of Wood Science and Technology, Lj. | Ljubljana | BFLES |
reading room 1 cop.
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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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Rupnik, Laura | ![]() |
Humar, Miha | 19106 |
Pohleven, Franc | 05248 |
Source: Personal bibliographies
and: SICRIS
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