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초저이온 농도범위에서 혼합층 이온 교환능과 온도의 영향 1 . 이온 교환능
윤태경,문병현,노병일 ( Tae Kyung Yoon,Byung Hyun Moon,Byeong Il Noh ) 한국화학공학회 1995 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.33 No.1
Mixed-bed ion exchange performance was studied at ultra-low sodium chloride solution concentrations of less than 1.0×10^(-4) M. The performance was tested using the effluent concentration histories as a function of bed position and time for a laboratory-scale continuous flow column until both the canon 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 ration 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.
ZVI와 Persulfate를 이용한 Orange Ⅱ 폐수처리에 관한 연구
최수민 ( Su Min Choi ),노병일 ( Byeong Il Noh ),문병현 ( Byung Hyun Moon ) 한국수처리학회 2014 한국수처리학회지 Vol.22 No.4
In this study, the combined ZVI and persulfate treatment on the decolorization and CODCr removal efficiency of orange Ⅱ dye wastewater were evaluated. The results of the sequential ZVI reduction and persulfate oxidation process on the decolorization and CODCr removal efficiency were compared to those of the ZVI and the simultaneous ZVI and persulfate processes. For the ZVI process, optimum pH for decolorization was observed to be at 3. However, the removal of CODCr by a ZVI at optimum pH of 3 was not effective. The combined ZVI and persulfate process could mineralize orange Ⅱ dye wastewater to the higher removal efficiencies of CODCr than the ZVI process. The sequential ZVI reduction and persulfate oxidation process of orange Ⅱ dye wastewater showed that the reduction products of orange Ⅱ dye by ZVI were oxidized more rapidly by persulfate. This means that the sequential ZVI reduction and persulfate oxidation process is more effective to promote the degradation of orange Ⅱ dye wastewater.