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ISSN : 1225-0112(Print)
ISSN : 2288-4505(Online)
Applied Chemistry for Engineering Vol.10 No.1 pp.51-57
DOI :

Research Papers : Adsorption Characteristics of Ni , Co and Ag Ions on The Cation Exchange Resin of Demineralization Process in Primary Coolant System of PWR

Hyun S . Yang

Abstract

Adsorption characteristics of Ni(II), Co(II) and Ag(I) ions on the Amberite IRN 77 cation exchange resin have been studied to suggest the guide-line for the optimum operation of demineralization process in primary coolant system during the shut-down period of pressurized water reactor(PWR). The adsorption mechanism of each metal ion, Ni(II), Co(II) or Ag(I) ion, on a cation exchange resin was well coincided with Langmuir isotherm. The adsorption and treatment capacities of H+-form resin were higher than those of Li+-form resin. In the continuous ion exchange process for the solution of multi-component system, the selectivity of the resin was in increasing order of Ni(II) Co(II)>Ag(I). In addition, the increase of the flow rate decreased the treatment capacity of the resin as well as the slope of the breakthrough curve.

연구논문 : 원자로 일차 냉각제 계통내 탈염공정의 양이온 교환수지상에서 니켈 ( Ni ) , 코발트 ( Co ) 및 은 ( Ag ) 이온의 흡착 특성

양현수,김영호

초록

원자로 정지시 냉각제 계통내 탈염 공정의 최적운전에 도움을 줄 목적으로 Amberite IRN 77 양이온 교환수지상에서 Ni(II), Co(II) 및 Ag(I) 이온의 흡착특성을 연구하였다. 양이온 교환수지상에서 Ni(II), Co(II) 및 Ag(I) 이온 각각의 흡착 메카니즘은 Langmuir isotherm에 잘 일치하였다. 양이온교환수지의 형태에 따른 영향으로서 H+-형의 수지의 흡착 및 처리 용량은 Li+-형의 수지보다 우수하였다. 다성분계의 용액을 위한 연속식 이온교환공정에서 양이온교환수지의 흡착선택성은 Ni(II) Co(II)>Ag(I)였으며, 유속의 증가는 수지의 처리용량 뿐만 아니라 파과곡선의 기울기를 감소시켰다.

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