Surface water treatment in hybrid systems coupling advanced oxidation processes and ultrafiltration using ceramic membrane

摘要

A comparison of the efficiency of treatment of surface water from Miedwie Lake (Poland) in hybrid systems coupling various advanced oxidation processes (TiO2 photocatalysis, UVC photolysis and UV/H2O2) and ultrafiltration (UF) is presented. A ceramic membrane with ZrO2 separation layer (Inside Ceram 5,000 g mol(-1)) was used. Application of photocatalysis contributed to the improvement of the permeate flux compared with photolysis by ca. 16%-35%. Similar effect was observed in case of UV/H2O2 process with addition of 0.15 gH(2)O(2) L-1. Adsorption of organic contaminants on TiO2 influenced significantly on the treatment efficiency in the photocatalytic membrane reactor (PMR). The highest removal rate of total organic carbon was observed in case of 1 g TiO2 L-1. Similar efficiency of mineralization was found in UV/H2O2-UF process with application of 0.15 gH(2)O(2) L-1. The UV/H2O2-UF system was found to be a promising alternative for the PMR during treatment of surface water.