To provide a treating method of boron-containing water by which stable treatment can be continued without lowering boron adsorbing ability of a granulated body in the treating method of the boron-containing water by which boron is removed by adsorption using the granulated body on which hydroxide of rare earth element is deposited.
In the treating method of the boron-containing water having an adsorbing process in which the boron-containing water is brought into contact with the granulated body on which hydroxide of rare earth element is deposited to remove boron by adsorption and a desorbing process in which a boron-adsorbed granulated body is brought into contact with an alkaline aqueous solution to desorb boron, an acid-treatment process in which the granulated body is brought into contact with an acid aqueous solution before or after bringing the granulated body into contact with the alkaline aqueous solution, is provided.
SHINDO MANABU
IKOMA KAZUHIRO
KONNO SEIICHI
ASADA HIROYUKI
ETO YOSHIHIRO
SATO TAKESHI
ASAHI ENGINEERING
KURITA WATER IND LTD