METHOD OF TREATMENT OF RADIOACTIVE WASTEWATER
    38.
    发明申请
    METHOD OF TREATMENT OF RADIOACTIVE WASTEWATER 审中-公开
    放射性废水处理方法

    公开(公告)号:US20150336815A1

    公开(公告)日:2015-11-26

    申请号:US14754745

    申请日:2015-06-30

    IPC分类号: C02F1/44 C02F1/469

    摘要: A method of treatment of radioactive wastewater. The method includes: allowing radioactive wastewater to undergo reverse osmosis treatment and continuous electrodeionization treatment in sequence. The continuous electrodeionization treatment is carried out in a continuous electrodeionization unit including a continuous electrodeionization membrane stack including a dilute chamber and a concentrate chamber. The dilute chamber is filled with between 30 and 60 vol. % of a first strong-acid cation exchange resin, between 40 and 60 vol. % of a first strong-base anion exchange resin, and between 0 and 30 vol. % of a weak-base anion exchange resin. The concentrate chamber is filled with between 20 and 50 vol. % of a second strong-acid cation exchange resin, and the rest is a second strong-base anion exchange resin.

    摘要翻译: 一种处理放射性废水的方法。 该方法包括:使放射性废水顺序进行反渗透处理和连续去电处理。 连续电去离子化处理在包括稀释室和浓缩室的连续电去离子膜叠层的连续电去离子化单元中进行。 稀释室填充30至60体积份。 %的第一强酸阳离子交换树脂,介于40和60体积%之间。 %的第一强碱阴离子交换树脂,并且在0和30体积%之间。 %的弱碱阴离子交换树脂。 浓缩室充满20至50体积份。 %的第二强酸阳离子交换树脂,其余为第二强碱阴离子交换树脂。

    Mineralogical removal method and apparatus for highly concentrated iodine in radioactive wastewater
    39.
    发明授权
    Mineralogical removal method and apparatus for highly concentrated iodine in radioactive wastewater 有权
    放射性废水中高浓度碘的矿物去除方法和装置

    公开(公告)号:US09181114B2

    公开(公告)日:2015-11-10

    申请号:US14533836

    申请日:2014-11-05

    摘要: Provided are a mineralizing removal method and apparatus for highly concentrated iodine in radioactive wastewater. According to the present invention, since only a small amount of sludge is discharged as compared to the previous treatment methods, a generation amount of the radioactive waste may be significantly decreased, such that wastewater containing highly or ultra-highly concentrated iodine may also be effectively treated. Further, only iodine may be selectively removed regardless of the presence of competitive anions in the wastewater. Treatment may be performed under a neutral or weak alkaline condition rather than an acidic condition, such that a volatilization of radioactive iodine was fundamentally blocked, and at the time of discharging the wastewater, a neutralization treatment process is not required. In addition, long term storage stability of radioactive waste may be significantly promoted by using phase-conversion of malachite and an iodine crystallization method as compared to the previous adsorption methods.

    摘要翻译: 提供放射性废水中高浓度碘的矿化除去方法和装置。 根据本发明,与以前的处理方法相比,由于仅排出少量污泥,因此放射性废物的产生量可能显着降低,使得含有高浓度或超高浓度碘的废水也可以有效地 治疗。 此外,无论在废水中是否存在竞争性阴离子,只能选择性地除去碘。 处理可以在中性或弱碱性条件下而不是酸性条件下进行,使得放射性碘的挥发基本上被阻断,并且在排出废水时不需要中和处理过程。 此外,与以前的吸附方法相比,通过使用孔雀石的相转化和碘结晶方法,可以显着促进放射性废物的长期储存稳定性。