Study of a hybrid process combining ozonation and microfiltration/ultrafiltration for drinking water production from surface water*

摘要: A hybrid process, consisting of ozonation and membrane filtration, followed by activated carbon was studied in pilot scale for drinking water production from river water. The main focus this study centred on tests to determine the effect ozone filtration fouling behaviour ceramic microfiltration ultrafiltration membranes with pore sizes 0.1 gm 20 kD as well quality produced. results showed that a certain concentration permeate required maintain stable high fluxes during without backflushing. For under study, minimum 0.05 mg per litre needed. Furthermore, dosage increased, rose values pure permeability depending doses. Ultrafiltration addition yields 99% can be achieved reducing while obviating need In order assess treatment process qualities generated, most important chemical microbiological analytical parameters were determined feed treated after each stage then compared. analysis that, due organic components water, total (TOC), oxygen demand permanganate (COD), adsorbable halogens (AOX) spectral absorption coefficient (SAC 254), could reduced respective determination limit. Moreover, coliform bacteria, E. coli, Pseudomonas aeruginosa, Clostridia faecal streptococci, which sometimes present eliminated completely. Therefore all analysed fresh produced, fulfilled requirements German Drinking Water Regulations.