05-01-2017 дата публикации
Номер: US20170001891A1
Принадлежит:
An activating agent for the treatment of radioactive wastewater. The activating agent is prepared by dissolving a mixture of inorganic salts including Ca, Na, Sr, Zn, Mg, Fe 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. 1. An activating agent for treating radioactive wastewater , the activating agent being prepared by dissolving a mixture of inorganic salts comprising Ca , Na , Sr , Zn , Mg , Fe and K in pure water having an electrical resistivity greater than 0.5 MΩ·cm to yield a solution , wherein the concentrations of the inorganic salts in the solution are as follows:{'sup': '2+', 'Ca: 0.01-1 g/L;'}{'sup': '+', 'Na: 0.02-1.5 g/L;'}{'sup': '2+', 'Sr: 0.8-45 mg/L;'}{'sup': '2+', 'Zn: 1.8-100 mg/L,'}{'sup': '2+', 'Mg: 0.02-1.25 g/L;'}{'sup': '2+', 'Fe: 4-250 mg/L; and'}{'sup': '+', 'K: 10-750 mg/L.'}2. A method of radioactive wastewater treatment using the activating agent of claim 1 , the method comprising:{'sup': 2+', '+', '2+', '2+', '2+', '+, '1) preparing the activating agent by dissolving a mixture of inorganic salts comprising Ca, Na, Sr, Zn, Fe and K in pure water having an electrical resistivity greater than 0.5 MΩ·cm to yield a solution, wherein the concentrations of the inorganic salts in the solution are as follows{'sup': '2+', 'Ca: 0.01-1 g/L;'}{'sup': '+', 'Na: 0.02-1.5 g/L;'}{'sup': '2+', 'Sr: 0.8-45 mg/L;'}{'sup': '2+', 'Zn: 1.8-100 mg/L ...
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