Photocatalytic oxidation of natural organic matter enhanced with microfiltration and nanofiltration

In the article, the results of the study on the effectiveness of removal of natural organic matter from simulated water containing fulvic (FA) and humic (HA) acids as well as natural water contaminated with a mixture of organic compounds are presented. The treatment process comprises a photocatalytic microfiltration reactor (PhMFR), the operation of which was supported with nanofiltration (NF). The photocatalysis process was performed with the use of TiO₂ P25 catalyst and immersed UV low-pressure lamps. Microfiltration was carried out with the use of a capillary membrane module—MICROZA, while NF with a flat-sheet composite membrane. It was found that such a configuration of the water treatment process, which resulted in a highly effective removal of natural organic compounds, could be successfully applied in practice.