CAJ | 학술논문

目的选择合适的离子交换树脂处理60 Co污染的贮源井水,使污染的贮源井水中放射性水平低于10 Bq/L,满足排放要求.方法通过亚硝酸钴钾共沉淀-β计数法测量水样中60Co的活度,比较两种不同离子交换树脂处理60Co污染模拟井水的效果,并选择净化效果较好的离子交换树脂处理60Co污染的源井水.结果 MBD-15-SC型混合离子交换树脂对模拟井水中60Co净化效果明显高于ZGCNR50型强酸性阳离子交换树脂,大约为5.8倍;采用多次两级MBD-15-SC型混合离子交换树脂循环处理污染的源井水,可使水中60Co放射性浓度从4.16×105 Bq/L降至1.16 Bq/L.结论采用多次两级MBD-15-SC型混合离子交换树脂可有效处理60 Co污染的源井水,处理后的贮源井水符合排放要求.
목적 선택합괄적리자교환수지처리60 Co오염적저원정수,사오염적저원정수중방사성수평저우10 Bq/L,만족배방요구.방법 통과아초산고갑공침정-β계수법측량수양중60Co적활도,비교량충불동리자교환수지처리60Co오염모의정수적효과,병선택정화효과교호적리자교환수지처리60Co오염적원정수.결과 MBD-15-SC형혼합리자교환수지대모의정수중60Co정화효과명현고우ZGCNR50형강산성양리자교환수지,대약위5.8배;채용다차량급MBD-15-SC형혼합리자교환수지순배처리오염적원정수,가사수중60Co방사성농도종4.16×105 Bq/L강지1.16 Bq/L.결론 채용다차량급MBD-15-SC형혼합리자교환수지가유효처리60 Co오염적원정수,처리후적저원정수부합배방요구.
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.