Uporaba reverzne osmoze za čiščenje odpadne vode v avtomobilski industriji

Črv, Katarina (author), Golobič, Iztok (mentor), Zupančič, Matevž (comentor)

Reverzna osmoza je ena pomembnejših tehnologij čiščenja vode z membranami. V tem raziskovalnem delu je bila na pilotni napravi reverzne osmoze izvedena filtracija vode onesnažene s topilom Nikutex®, ki je v uporabi v avtomobilski industriji in ga je potrebno pravilno odvajati na komunalno napravo, tako da dosega določene zahtevane parametre. Za filtracijo tega sta bili uporabljeni dve različni poliamidni tankoslojni kompozitni membrani. Obravnavane so bile vrednosti glavnih parametrov, ki kažejo na onesnaženost vode ter razlike med uporabljenima membranama. Vrednost kemijske potrebe po kisiku se je po filtraciji z membrano DOW FILMTECTM BW60-1812-78 s 33535 mg/l znižala na 11013 mg/l, z membrano SUEZ AG-1812-HR pa na 5722 mg/l. Skozi obratovanje je opažen padec fluksa permeata in permeabilnosti, prav tako pa se je tekom filtriranja zmanjševala prevodnost. Rezultati kažejo, da je možno s pomočjo reverzne osmoze v odpadni vodi bistveno zmanjšati kemijsko potrebo po kisiku. V nalogi je predstavljena uspešnost filtracije topila, vplivi na mašenje in možnosti za nadaljnjo obdelavo dotične onesnažene vode.

• Language: Slovenian
• Keywords: membranska filtracija, reverzna osmoza, odpadna topila, kemijska potreba po kisiku, mašenje membran
• Work type: Master's thesis/paper
• Typology: 2.09 - Master's Thesis
• Organization: FS - Faculty of Mechanical Engineering
• Place of publishing: Ljubljana
• Publisher: [K. Črv]
• Year: 2020
• Number of pages: XXI, 65 str.
• PID: 20.500.12556/RUL-114468
• UDC: 628.32:66.081.63(043.2)
• COBISS.SI-ID: 17070107
• Publication date in RUL: 29.02.2020

ČRV, Katarina, 2020, Uporaba reverzne osmoze za čiščenje odpadne vode v avtomobilski industriji [online]. Master’s thesis. Ljubljana : K. Črv. [Accessed 22 June 2025]. Retrieved from: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=eng&id=114468

Secondary language

• Language: English
• Title: Wastewater treatment using reverse osmosis in the automotive industry

Abstract

Reverse osmosis is one of the major water purification membrane technologies. In this research work, water contaminated with solvent Nikutex®, which is used in automotive industry, was filtered on a reverse osmosis pilot plant. For discharging this type of wastewater to a municipal plant, certain required parameters should be met. Two different polyamide thin film composite membranes were used for filtration tests. Differences between the used membranes and measured parameters, which indicate water pollution were discussed. Values of chemical oxygen demand was found to significantly decrease after filtration, with membrane DOW FILMTECTM BW60-1812-78 from 33535 mg/l to 11013 mg/l and with membrane SUEZ AG-1812-HR to 5722 mg/l, whereas a decrease in permeate flux, permeability and fluid conductivity was also observed during operation. We discuss performance of the filtration, membrane fouling and the possibilities for further treatment of the contaminated water.

• Keywords: membrane filtration, reverse osmosis, waste solvents, chemical oxygen demand, membrane fouling