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HWAHAK KONGHAK,
Vol.33, No.1, 121-129, 1995
Vol.33, No.1, 121-129, 1995
초저이온 농도범위에서 혼합층 이온 교환능과 온도의 영향
The Mixed-Bed Ion Exchange Performance and Temperature Effects at Ultra-Low Concentrations-1. Ion Exchange Performance
본 연구에서는 NaCl수용액의 초저이온 농도범위(1.0X10-4M이하)에서의 혼합층 이온 교환능을 실험 연구하였다. 실험실 크기의 연속흐름 칼럼을 통하여 양이온 교환수지와 음이온 교환수지의 교환능이 소모될 때까지 유출농도를 수지층의 위치와 시간의 함수로 측정함으로써 이온 교환능을 연구하였으며, shallow bed기술을 사용하여 얻은 파과곡선(breakthrough curve)의 결과를 다음과 같은 형태로 나타내었다. : (1) 시간의 함수로써 여러 위치에서 파과곡선의 모양, (2) 양이온 수지가 Cl이온의 파과곡선에 미치는 영향과 음이온 수지가 Na이온과 Cl이온의 파과곡선의 교차점(crossover point)의 위치변화, (4) 비혼합층의 파과곡선 모양 등이다.
Mixed-bed ion exchange performance was studied at ultra-low sodium chloride solution concentrations of less than 1.0X1.0-4M. The performance was tested using the effluent concentration histories as function of bed position and time for a laboratory-scale continuous flow column until both the cation and anion-exchange resins were exhausted. The breakthrough curves obtained by the shallow-bed technique gave some detailed results : the shape of the breakthrough curves at different positions as a function of time; effects of cation resin on the chloride breakthrough curve and anion resin on the sodium breakthrough curve; the movement of crossover points of sodium and chloride breakthrough curves as a function of resin ratio; and the effects of an unmixed bed.
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[Cited By]
- Yoon T, Shon ZH, Lee G, Moon B, Noh B, Sung N, Korean Journal of Chemical Engineering, 18(2), 170, 2001
- Yoon T, Noh B, Moon B, Korean Journal of Chemical Engineering, 17(6), 652, 2000
- Noh BI, Lee CW, Yoon TK, Moon BH, Lee GC, Shin CH, Korean Journal of Chemical Engineering, 16(6), 737, 1999
- Yoon TK, Noh BI, Lee CW, Moon BH, Lee GC, Jo MC, Journal of the Korean Industrial and Engineering Chemistry, 10(2), 206, 1999
- Noh BI, Yoon TK, Moon BH, Korean Journal of Chemical Engineering, 13(2), 150, 1996
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