| 摘要 |
PURPOSE:To perform an unmanned operation by separating ion exchange resin into two layer with backwashing, introducing a pressurized air or a pressurized water from the upper part of a column, and transporting a great part of the ion exchange resin having a small sp.gr. CONSTITUTION:The backwashing separation is sufficiently performed by opening valves 9, 10 and introducing the water for backwashing after transporting the resin to a separation column 22. After the valve 9, 10 are closed and the resin layer sinks and becomes still, the great part of the strong basic anion exchange resin (SBR) is transported to the anion regeneration column by introducing the pressurized water Q4 by opening valve 13, 12 while introducing the slucing water for transportation. The remaining SBR 2', which gathers near the center axis of the column or the opening part 4' of the resin transporting pipe 4 and is in a state of solid phase, is transported to the regeneration column for the anion exchange resin by introducing the pressurized water Q4 by opening the valve 13 or introducing the pressurized air by opening the valve 19 and then opening the valve 12. |
