Abstract
While the membrane filtration technology is installed into small-medium scale purification plants, its application to a large scale plant is also studied and incorporated. In this study, an experiment was performed to solve possible problems, using a high density immersion type hollow fiber MF membrane unit developed for large scale filtration plants. As a result, 1) experiment of the high density immersion membrane was performed and a stable operation result was obtained. 2) By using a filtration membrane for backwashing waste water, the system with the recovery rate of 99.9 to 99.95% was established. 3) In case study, estimated footprint of membrane process is less than half of conventional method but another 50% electricity is needed.
