Metal material aggregation promoting layer, and water treatment apparatus using the same

摘要

The metal material aggregation-promoting layer (202) has a substrate (201), porous carrier layer (202) provided to the substrate, and adsorbent particles carried on the porous carrier layer and containing at least one type of trivalent ferrous ion compound selected from the group consisting of Fe2O3, Fe3O4, Fe(OH)3, and FeOOH. The water treatment device (100) has: treatment water flow channels (11, 12, 13) through which treatment water (W) containing at least one metal-related substance selected from the group consisting of metal ions, metal particles, metal oxide particles, and metal hydroxide particles; an oxidizer feed unit (4) for feeding an oxidizer (O) to the treatment water; and an aggregation-promoting unit (2) that has a metal material aggregation-promoting layer and that promotes the aggregation of metal-related substances by causing the metal-related substances contained in the treatment water to be adsorbed to the adsorption particles by the effect of the oxidizer.