Application of ultrafiltration membranes in water turbidity removal

U ovom radu praćen je rad pilot postrojenja s uronjivom i tlačnom ultrafiltracijskom membranom tijekom obrade vode. Cilj rada je bio ispitati učinkovitost membranske tehnologije u uklanjanju mutnoće iz vode. Uzorci uzeti za analizu su voda iz izvora i filtracijske posude, permeati membrana te koncentrat tlačne membrane. Tijekom perioda rada od 152 dana provodilo se kontinuirano „on- line˝ prikupljanje podataka te tjedno praćenje fizikalno- kemijske analize uzoraka vode. Prikupljeni podaci i rezultati analiza su pokazali da je membrana za uklanjanje mutnoće imala stabilan fluks permeata, trans- membranski tlak (TMP) i permeabilnost te da je obrađena voda udovoljavala standardima vode za piće prema svim parametrima. Mutnoća, kao najvažniji parametar ispitivanja, gotovo je u potpunosti uklonjena. Stoga se primjena membranskih procesa pokazala izrazito učinkovitom i pouzdanom tehnologijom tijekom uklanjanja mutnoće, a obrađena voda bi bila pogodna za ljudsku uporabu.Purpose of this study was to examine the efficiency of membrane technology in the process of water turbidity removal. A performance of a pilot plant consisted of immersed and pressure driven ultrafiltration membranes for water treatment was monitored during 152 days. Water samples from a spring, filtration vessel, permeates and pressure driven membrane concentrate were taken for anaysis. Results suggested that the membrane had a stable properties concerning membrane flux, trans-membrane pressure (TMP) and permeability, and that the treated water quality met the drinking water standards. Turbidity, one of the most important indicator, was almost completely removed. Membrane processes were proven to be efficient and reliable technology for turbidity removal, and treated water could be sutable for human consumption