Application of membrane filtration techniques in sewage water reuse.

The promotion of sewage water reuse has been expected increasingly from the point of the effective use of water resources. The reused waters have been used in various kind of purposes such as environmental water, flush water and cleaning water. Membrane filtration techniques has been expected in improving reused water quality.For the purpose of the reused water production, we have studied ozone-microfiltration system. High ozone resistance membrane module using polyvinylidenefluoride hollow fiber was applied to microfiltration. By this reused water production system, the high quality reused water can be obtained with low production cost.