| Bi Meng,Miao Shilin,Zhang Xiaolu,Zhang Youjiu.Ion exchange-based treatment of 60Co contaminated well-water for storing γ irradiation source[J].Chinese Journal of Radiological Medicine and Protection,2014,34(8):617-620 |
| Ion exchange-based treatment of 60Co contaminated well-water for storing γ irradiation source |
| Received:October 31, 2013 |
| DOI：10.3760/cma.j.issn.0254-5098.2014.08.014 |
| KeyWords:Ion exchange method 60Co Well-water storing radioactive source |
| FundProject:核技术利用与辐射安全监管技术支持项目（JG201211）；江苏高校优势学科建设工程资助项目（PAPD） |
|
| Hits: 2960 |
| Download times: 1885 |
| Abstract:: |
| Objective To select an efficient ion exchange resin to purify the 60Co contaminated well-water for storing radioactive source and to ensure the radioactivity of 60Co in treated well-water below 10 Bq/L. Methods The radioactivity of 60Co in the water samples was measured by using the potassium cobaltinitrite coprecipitation-β counting method. The treatment efficiencies of two different ion exchange resins for the simulated 60Co-bearing waste water were compared to select a better one to dispose of the 60Co contaminated well-water.Results The treatment efficiency of MBD-15-SC mixed ion exchange resin was about 5.8 times higher than ZGCNR50 strong-acid cation exchange resin. The radioactivity of 60Co in the contaminated well-water could be reduced from 4.16×105 Bq/L to 1.16 Bq/L by two-stage sorption of MBD-15-SC mixed ion exchange resin. Conclusions Using several times of two-stage MBD-15-SC mixed ion exchange resin could effectively purify the 60Co contaminated well-water. The quality of the treated well-water could meet the sewage discharge standards. |
| HTML View Full Text View/Add Comment Download reader |
| Close |
