Treatment of radioactive waste seawater by coagulation-flocculation method using ferric hydroxide and poly acrylamide

This work studied a coagulation-flocculation system using ferric hydroxide and poly acrylamide flocculant to find the effective condition to remove the radionuclides of Co, Mn, Sb, Ru, and Sr remaining in solution after Cs removal by adsorption for the treatment of radioactive waste seawater generat...

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Bibliographic Details
Published in:Journal of nuclear science and technology 2016-03, Vol.53 (3), p.439-450
Main Authors: Kim, Kwang-Wook, Baek, Ye-ji, Lee, Keun-Young, Chung, Dong-Young, Moon, Jei-Kwon
Format: Article
Language:English
Subjects:
Acrylamide
Coagulation
coprecipitation
Decontamination
Ferric hydroxide
flocculation
Fukushima
Nuclear power plants
radioactive seawater
Radioactive waste
Radioactive wastes
Sea water
Seawater
Settling
Turbidity
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Summary:This work studied a coagulation-flocculation system using ferric hydroxide and poly acrylamide flocculant to find the effective condition to remove the radionuclides of Co, Mn, Sb, Ru, and Sr remaining in solution after Cs removal by adsorption for the treatment of radioactive waste seawater generated in a disastrous nuclear power plant accident like Fukushima Daiichi. The coagulation-flocculation mechanism was studied, and the performance characteristics of the coagulation-flocculation system was evaluated in views of decontamination yield of the elements, residual turbidity of treated solution, settling speed of flocs, and generated total floc volume, etc. The total removal yield of target radio nuclides of Co, Mn, Sb, and Ru was more than 99% in seawater at pH 8.
ISSN:0022-3131
1881-1248
DOI:10.1080/00223131.2015.1055313