| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and an apparatus in which, in a state of suppressing carry-over of boric acid in waste fluid containing boric acid into a vapor phase, viscosity and fluidity of concentrated liquid waste obtained in reduction of the waste fluid containing the boric acid can be easily controlled, and the concentrate liquid waste can be used for cement solidification.SOLUTION: An apparatus 10 for treating waste fluid containing boric acid includes: a reaction tank 13 in which the waste fluid containing boric acid and organic calcium salt are put to react with each other to generate boric acid calcium salt; waste liquid containing boric acid calcium salt concentration means 15 in which the waste fluid containing boric acid calcium salt is condensed and reduced and the condensed waste fluid containing sludge of the boric acid calcium salt is generated; and cement solidification means of solidifying the condensed waste fluid with cement. |
