| abstract |
[PROBLEMS] To provide a resin capable of selectively adsorbing selenium even from a large amount of salts and a small amount of an aqueous solution containing selenium, a method for producing the resin, and a method for separating or removing selenium. A selenium-adsorptive resin comprising an insoluble polymer having an adjacent dimercapto group, a method for producing a selenium-adsorptive resin by reacting an insoluble polymer having an episulfide group with alkali hydrosulfide, A method for separating or removing selenium in which selenium is selectively adsorbed by contacting a selenium-containing aqueous solution. |