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    • 15. 发明公开
    • 배수로부터의 금속 제거 방법 및 제거 장치
    • 从废水中除去金属的方法和从废水中去除金属的装置
    • KR1020080063797A
    • 2008-07-07
    • KR1020087010196
    • 2006-10-30
    • 스미토모 오사카 세멘토 가부시키가이샤
    • 코니시마사요시
    • C02F1/467C22B3/22C22B7/00C22B61/00C02F1/42C02F1/44C02F1/52C22B43/00C02F103/18
    • C22B7/006C02F1/42C02F1/44C02F1/463C02F1/4672C02F1/5236C02F1/56C02F1/66C02F2101/20C02F2103/001C02F2103/18C02F2201/4617C22B3/22C22B43/00C22B61/00Y02P10/234Y02W30/54
    • This invention provides a method for removing metals from waste water in which metals such as thallium contained in waste water produced upon water washing of chlorine-containing wastes, raw garbage burned ash, fly ash and the like are removed to a concentration not more than the value specified in waste water standards to improve the water quality of the waste water, and an apparatus for removing metals from waste water. The method for removing metals from waste water is characterized by comprising applying a direct current by an electrolyzer (5) to a reaction tank (1), a precipitation tank (2), and a metal aggregate-containing waste water (S5) discharged through the reaction tank (4) to perform electrolysis, precipitating metals, dissolved in the waste water (S5), as metal oxides upon the electrolysis of the waste water (S5), separating the waste water (S6), in which metal oxides have been precipitated, into a suspended solid (MP) and waste water (S7) by a microfiltration apparatus (6), and removing metals dissolved in very small amounts in the waste water (S7), from which the suspended solid (MP) has been removed, by ion exchange equipment (7).
    • 本发明提供了一种从废水中除去金属的方法,其中除去在含氯废物,生垃圾燃烧灰,飞灰等水洗时产生的废水中含有的铊等金属,其浓度不超过 废水标准中规定的值,以提高废水的水质,以及从废水中除去金属的设备。 从废水中除去金属的方法的特征在于包括通过电解槽(5)将直流电流施加到反应罐(1),沉淀罐(2)和通过 反应槽(4)在废水电解(S5)中进行电解,析出溶解在废水(S5)中的金属作为金属氧化物,分离已经存在金属氧化物的废水(S6) 通过微量过滤装置(6)将其沉淀成悬浮固体(MP)和废水(S7),并除去已经从其中除去悬浮固体(MP)的废水中非常少量溶解的金属(S7) ,由离子交换设备(7)。