| 摘要 |
A method and an apparatus for performing condensate demineralization which are capable of producing a high-purity treated water containing low concentrations of sulfate ions and nitrate ions derived from TOC eluted from a cation exchange resin and anion exchange resin. A condensate demineralization method for performing a demineralization treatment of a condensate from a boiling-water reactor nuclear power plant using an ion exchange resin, wherein the method employs a mixed bed containing a uniform mixture of a strongly acidic, uniform particle size, gel-type cation exchange resin having an average particle size within a range from 450 to 600 mum and a resin particle existence ratio within a range specified by average particle size ±100 mum of not less than 95%, and a strongly basic type 1 porous anion exchange resin having a Gaussian particle size distribution, the mixed bed is mixed uniformly so that the existence ratio of the anion exchange resin is within ±5% of the design standard value across the entire mixed bed, and the demineralization treatment is performed by bringing the condensate into contact with the mixed bed.
|
