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http://dx.doi.org/10.14579/MEMBRANE_JOURNAL.2016.26.5.401

Ions Removal of Contaminated Water with Radioactive Ions by Reverse Osmosis Membrane Process  

Shin, Do Hyoung (Department of Advanced Materials and Chemical Engineering, Hannam University)
Cheong, Seong Ihl (Department of Advanced Materials and Chemical Engineering, Hannam University)
Rhim, Ji Won (Department of Advanced Materials and Chemical Engineering, Hannam University)
Publication Information
Membrane Journal / v.26, no.5, 2016 , pp. 401-406 More about this Journal
Abstract
In this study, we have investigated the removal of the low level radioactive ions of Cs and I in water by the reverse osmosis (RO) process. The two RO modules produced in domestic region and the waste RO module after the cleaning process were selected. Then we compared removal performance of both Cs and I. The experiments are conducted by varying the concentration of feed, the pressure. As a results, it was confirmed that all three modules are higher I decontamination factor than Cs. And particularly, for the cleaned RO module, its decontamination factor of I was 1140. Since the results at low pressure condition were better than that at high pressure conditions, the use of the direct installation of RO modules on the tap water might be possible. In addition, it was confirmed that the waste RO module after cleaning process using EDTA, SBS and NaOH, increased the decontamination performance better than before cleaning, in particular, the recovery ratio after cleaning was 6.3% higher.
Keywords
radioactive ions; Cs(cesium); I(iodine); reverse osmosis process; membrane cleaning; decontamination ratio;
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Times Cited By KSCI : 5  (Citation Analysis)
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