method and system of treating solutions containing boron, in particular eluates of regenerating res

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Method and system of treating solutions containing boron, in particular eluates of regenerating resins with changing [...] selective. The present invention relates to a method and system for treating aqueous solutions which contain boron, for example, eluates of regenerating selective ion exchange resins comprising the steps of neutralizing the solution, adding an alkali metal hydroxide or rare earth earth, maintain the pH of this first reaction mixture so as to homogenize a first phase colloidal gel/and separating the solid phase of the liquid phase to obtain an aqueous solution intermediate.