20.500.12556/RUL-186212 Vrednotenje potenciala izluževanja snovi iz 3D-tiskanih nosilcev biomase v sistemih čiščenja odpadnih vod Assessment of the leaching potential of 3D-printed biomas carriers in wastewater treatment systems Zaradi potrebe po učinkovitejšem čiščenju odpadnih vod, se v zadnjih desetletjih vse pogosteje uporablja MBBR sistem (reaktor s plavajočimi nosilci biomase). Pri tem procesu se mikroorganizmi pritrjujejo na majhne prosto gibljive nosilce, na katerih raste biofilm. Nosilci omogočajo veliko specifično površino za rast biomase in stabilnejše delovanje procesa, tudi ob spremembah obremenitve in okolja. Običajno so izdelani iz nerazgradljivih polimernih materialov. Pri takšnih materialih je pomembno ovrednotiti, ali med stikom z vodo, pride do izluževanja in ali bi izlužene snovi lahko vplivale na kakovost vode ter vodne organizme. V diplomskem delu smo uporabili 3D-tiskane nosilce iz materiala Fun To Do Nano Clear. Rezultati so pokazali, da se iz nosilcev izlužujejo organske snovi in ortofosfati. Izlužki pa imajo zelo toksičen vpliv na vodno rastlino malo vodno lečo. Rezultati analiz pomembno prispevajo k oceni varnosti uporabe tovrstnega materiala za nosilce v MBBR v sistemih čiščenja odpadnih vod. Due to the need for more efficient wastewater treatment, the MBBR system (moving bed biofilm reactor) has been increasingly used in recent decades. In this process, mic-roorganisms attach to small, freely moving carriers on which biofilm grows. The car-riers provide a large specific surface area for biomass growth and contribute to more stable process operation, even under changes in loading and environmental conditions. They are usually made of non-biodegradable polymeric materials. For such materials, it is important to evaluate whether leaching occurs during contact with water and whether the leached substances could affect water quality and aquatic organisms. In this thesis, 3D-printed carriers made of Fun To Do Nano Clear material were used. The results showed that organic substances and orthophosphate leach from the carriers and leachates have a highly toxic effect on the aquatic plant Lemna minor. The results con-tributed to the assessment of the safety of using this type of material for carriers in MBBR in wastewater treatment systems. Izluževanje MBBR sistem nosilci strupenost varnost materiala. Carriers leaching material safety MBBR system toxicity. true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2026-08-28 10:20:04 2026-08-28 10:20:12 2026-09-14 13:35:28 0000-00-00 00:00:00 2026 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 26177 291027971 Janezic_Karin_-_Vrednotenje_potenciala_izluzevanja_snovi_iz_3D-tiskanih_nosilcev_biomase_v_siste.pdf Janezic_Karin_-_Vrednotenje_potenciala_izluzevanja_snovi_iz_3D-tiskanih_nosilcev_biomase_v_siste.pdf 1 1AFB2FC18140843F8D705FBBAA4CCC88 70177ae760be59da05769122d24418c7d8cc23e79e073dd07c6a9073e7d33913 df02fa46-a2b8-11f1-9b0d-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=245328 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0