| abstract |
An object of the present invention is to provide a multilayer separation membrane excellent in removing turbid components in water and removing metal ions by adsorption. The multilayer separation membrane of the present invention includes a porous adsorption layer substantially composed of a polymer having a chelating functional group, and a porous turbidity layer, and the porous turbidity layer is more raw water than the porous adsorption layer. Arranged on the side. |