公开(公告)号：US20150336815A1

公开(公告)日：2015-11-26

申请号：US14754745

申请日：2015-06-30

申请人： TSINGHUA UNIVERSITY

发明人： Xuan ZHAO ,  Fuzhi LI ,  Meng ZHANG

IPC分类号： C02F1/44 ,  C02F1/469

CPC分类号： C02F1/441 ,  B01D61/025 ,  B01D61/48 ,  B01D61/58 ,  C02F1/4695 ,  C02F2001/427 ,  C02F2101/006 ,  C02F2201/46115 ,  G21F9/06 ,  G21F9/12 ,  Y02A20/131 ,  Y02A20/134

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。

公开(公告)号：US20170001891A1

公开(公告)日：2017-01-05

申请号：US15264580

申请日：2016-09-13

申请人： TSINGHUA UNIVERSITY

发明人： Fuzhi LI ,  Xuan ZHAO ,  Meng ZHANG

IPC分类号： C02F1/68 ,  B01D61/52 ,  G21F9/06 ,  C02F1/469

CPC分类号： C02F1/68 ,  B01D61/025 ,  B01D61/42 ,  B01D61/52 ,  B01D61/58 ,  B01D2311/12 ,  C02F1/441 ,  C02F1/4695 ,  C02F2101/006 ,  C02F2209/10 ,  C02F2305/00 ,  G21F9/04 ,  G21F9/06 ,  G21F9/20 ,  G21Y2002/60 ,  G21Y2004/10

摘要： An activating agent for the treatment of radioactive wastewater. The activating agent is prepared by dissolving a mixture of inorganic salts including Ca2+, Na+, Sr2+, Zn2+, Mg2+, Fe2+ and K+ in pure water having an electrical resistivity greater than 0.5 MΩ·cm to yield a solution. A method of radioactive wastewater treatment using the activating agent includes: 1) preparing the activating agent; 2) adding the activating agent to radioactive wastewater having an electrical resistivity greater than 0.5 MΩ·cm; uniformly mixing the activating agent and the radioactive wastewater; 3) further treating the radioactive wastewater including the activating agent using an electro-deionization device; and 4) collecting two liquid flows obtained in 3), one being purified water, the other being concentrated water returning to 2) for further purification.

摘要翻译： 一种用于处理放射性废水的活化剂。 通过将电阻率大于0.5MΩ·cm的纯水中含有Ca2 +，Na +，Sr2 +，Zn2 +，Mg2 +，Fe2 +，K +的无机盐的混合物溶解，得到溶液。 使用活化剂的放射性废水处理方法包括：1）制备活化剂; 2）将活化剂加入到电阻率大于0.5MΩ·cm的放射性废水中; 均匀混合活化剂和放射性废水; 3）使用电去离子装置进一步处理包括活化剂的放射性废水; 和4）收集3）中得到的两个液体流，一个是净化水，另一个是浓缩水返回到2）进一步纯化。