| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a boric acid purification and reutilization system, and its method, using a reverse osmosis separation method. <P>SOLUTION: This boric acid purification and reutilization system, and its method, in which a high-efficiency thin film-type polyamide reverse osmosis thin film is used as a separation medium to remove the other constituents including silicon dioxide, thereby obtaining a high-concentration boric acid, can be applied to a main cooling system of a nuclear power station with a pressurized water reactor. This system comprises a boric acid storage 1, a concentrated liquid temporal storage 2, a reverse osmosis thin film separator 3, an electric controller 4, and a boric acid/silicon dioxide monitoring device 5. The respective devices are connected to each other to make it possible to purify and reuse boric acid with high efficiency based on specific operation steps. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
