Membrane fouling decrease by microfiltration with ozone scrubbing

摘要

In order to control membrane fouling in the microfiltration process for drinking water production, a hollow-fiber membrane module was scrubbed with ozone gas (0.0435 mgO_3/l) for 20 s every 1 h. In comparison with a control experiment, it was proved that membrane fouling can be significantly subdued by ozone scrubbing. Pre-ozonation of raw water also had the same effect of decreasing membrane fouling.