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    Method for removing heavy metal ions from contaminated water and a porous membrane usable therefor
    2.
    发明授权
    Method for removing heavy metal ions from contaminated water and a porous membrane usable therefor 失效
    从污染水中除去重金属离子的方法及其可用的多孔膜

    公开(公告)号：US5087372A

    公开(公告)日：1992-02-11

    申请号：US493751

    申请日：1990-03-15

    申请人： Kazuo Toyomoto ,  Takehiko Otoyo

    发明人： Kazuo Toyomoto ,  Takehiko Otoyo

    IPC分类号： B01D61/00 ,  B01D67/00 ,  B01J20/28 ,  B01J45/00 ,  C02F1/44 ,  G21F9/12

    CPC分类号： B01D67/0093 ,  B01D61/00 ,  B01J45/00 ,  C02F1/444 ,  G21F9/12 ,  B01D2323/38 ,  Y10S210/912

    摘要： A method for simultaneously removing a plurality of different heavy metal ions from contaminated water is disclosed. A plurality of different heavy metal ions can be simultaneously, efficiently removed by filtering contaminated water through a porous membrane comprising a membranous, porous resin matrix and a plurality of side chains chemically bound to both surfaces and pore wall surfaces of the matrix, which side chains each have a chelate group, preferably an iminodiacetic acid group, and terminating the filtration when the concentration of a determinant heavy metal ion in the filtrate reaches a predetermined level. By the method of the present invention, a plurality of different heavy metal ions, such as a cobalt ion and a nickel ion, can be simultaneously, efficiently removed from contaminated water, such as water to be used for and waste water from a nuclear power generator, on a commercial scale.

    摘要翻译： 公开了同时从污染水中除去多种不同重金属离子的方法。 多个不同的重金属离子可以同时有效地通过过滤污染的水通过多孔膜而被有效地除去，所述多孔膜包括膜多孔树脂基质和化学结合到基质的两个表面和孔壁表面的多个侧链，该侧链 各自具有螯合基团，优选亚氨基二乙酸基团，并且当滤液中的决定性重金属离子的浓度达到预定水平时终止过滤。 通过本发明的方法，多种不同的重金属离子如钴离子和镍离子可以同时被有效地从污染的水中除去，例如用于来自核电的废水和污水 发电机，商业规模。