膜分離浄水プロセスにおける紫外線照射前処理による膜目詰まりの抑制

概要

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Membrane filtration processes can produce high quality drinking water. The current problem, however, is membrane fouling. In order to prevent membrane-fouling, the effect of ultra-violet (UV) irradiation was evaluated using a pilot-scale membrane filtration apparatus. Two experimental set-ups, namely Processes 1 and 2, were constructed. Raw water from a nearby river was irradiated with UV prior to membrane separation in Process 1, whereas Process 2 was carried out as a control experiment. As a result, the Trans-Membrane Pressure (TMP) in Process 2 increased faster than in Process 1, and Process 2 was terminated after 77days. On the contrary, Process 1 had been carried out for 170 days with slow increase of TMP. The working effect of UV irradiation in this experiment was not clearly verified, but the bactericidal effect was considered to be the principal mechanism of fouling repression.
社団法人　日本水環境学会の論文
1995-11-10