20.500.12556/RUL-171826 Zmanjševanje vsebnosti organskih topil v vodi s pomočjo membran za reverzno osmozo Reduction of organic solvent content in water using reverse osmosis membranes V diplomski nalogi obravnavamo problem onesnaženosti voda z organskimi topili, ki lahko škodujejo okolju in zdravju ljudi. Kot možno rešitev preučujemo uporabo reverzne osmoze, ki je ena izmed najučinkovitejših membranskih tehnologij za čiščenje vode. Cilj naloge je bil zmanjšati vsebnost etanola in izopropanola v vodi ter oceniti učinkovitost dveh različnih membran pri različnih obratovalnih pogojih. V eksperimentalnem delu smo uporabili spiralno naviti modul z dvema membranama in pri različnih tlakih ter koncentracijah vhodne raztopine merili koncentracijo topil pred in po filtraciji. Na podlagi meritev smo izračunali stopnjo zadrževanja in primerjali rezultate med membranama. Rezultati so pokazali, da obe membrani dosegata visoko stopnjo odstranjevanja etanola in izopropanola, pri čemer so bile razlike med njima odvisne od obratovalnih pogojev. Najboljše rezultate smo dosegli pri višjih tlakih in nižjih koncentracijah vhodne raztopine. Na podlagi ugotovitev ocenjujemo, da imata preizkušeni membrani velik potencial za uporabo v industriji, predvsem pri čiščenju odpadnih voda, onesnaženih z organskimi topili. Kljub doseženim visokim učinkovitostim priporočamo nadaljnje raziskave, ki bi vključile preizkus več vrst organskih topil ter dolgoročno testiranje delovanja in stabilnosti membran. This thesis investigates the issue of water contamination by organic solvents, which pose a significant threat to both the environment and human health. As a potential solution, the study focuses on the application of reverse osmosis, one of the most effective membrane technologies for water purification. The primary objective was to reduce the content of ethanol and isopropanol in water and to evaluate the performance of two different membranes under various operating conditions. The experimental work was carried out using a spiral-wound module fitted with two membranes. Tests were performed at different pressures and feed solution concentrations, with solvent concentrations measured before and after filtration. From these measurements, retention rates were calculated and the results for the two membranes were compared. The findings showed that both membranes achieved high removal rates of ethanol and isopropanol, with performance differences depending on the operating parameters. The best results were obtained at higher pressures and lower feed solution concentrations. Based on these results, the tested membranes demonstrate strong potential for industrial applications, particularly in the treatment of wastewater contaminated with organic solvents. Nevertheless, further research is recommended, including the testing of a wider range of organic compounds and the long-term assessment of membrane performance and stability. membranske tehnologije reverzna osmoza organska topila etanol izopropanol membrane technology reverse osmosis organic solvents ethanol isopropanol true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2025-09-03 08:30:25 2025-09-03 08:30:28 2025-09-22 03:39:43 0000-00-00 00:00:00 2025 0 0 XX, 59 str. 2025 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 66.081.63:678.042:547(043.2) 275199 248432387 43421.pdf 43421.pdf 1 170CAE85953517FEDA56516375746FAA 2b7e6e8b4625b86cd1b1f26aacb863121c3fc1b60bccf65ef8b18b3dfe7b1f5f 56202b84-888f-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=215316 Fakulteta za strojništvo 0 0 0