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    • 37. 发明申请
    • ELECTRODEIONIZATION APPARATUS
    • 电极化装置
    • US20100096269A1
    • 2010-04-22
    • US12309758
    • 2007-07-31
    • Hirokazu KakuMasanobu Osawa
    • Hirokazu KakuMasanobu Osawa
    • C02F1/469B01D61/48
    • B01D61/485B01D2313/30C02F1/42C02F1/4602C02F1/4695C02F2103/32C02F2103/343C02F2103/346C02F2209/001C02F2209/003C02F2209/05Y02A20/134
    • An electrodeionization apparatus has a cathode and an anode, and has alternately formed therebetween concentrating chambers and desalination chambers by alternately arranging a plurality of anion exchange membranes and cation exchange membranes, each of the concentrating chambers being provided with a bipolar membrane to partition the interior of the concentrating chamber into a cathode side and an anode side, and each of the desalination chambers being divided into at least two layers including a first layer and a second layer, from an upstream side in a direction of flow of water to be treated, and being filled with an ion exchanger comprising an anion exchanger and a cation exchanger. The ion exchanger filling the first layer contains no less than 50 vol % of the cation exchanger, while the ion exchanger filling the second layer contains over 50 vol % to 80 vol % of the anion exchanger. As a result, the electrodeionization apparatus can be stably operated for a prolonged period of time while preventing formation of scale in the concentrating chambers and desalination chambers.
    • 电去离子装置具有阴极和阳极,并且通过交替地布置多个阴离子交换膜和阳离子交换膜而交替地在浓缩室和脱盐室之间形成,每个浓缩室设置有双极膜以分隔内部 所述浓缩室进入阴极侧和阳极侧,并且每个所述脱盐室从被处理水的流动方向的上游侧分为包括第一层和第二层的至少两层,以及 填充有包含阴离子交换剂和阳离子交换剂的离子交换剂。 填充第一层的离子交换剂含有不少于50体积%的阳离子交换剂,而填充第二层的离子交换剂含有阴离子交换剂的50体积%至80体积%。 结果,电去离子装置可以在长时间内稳定地运行,同时防止在浓缩室和脱盐室中形成垢。