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高在能,申盛義 조선대학교 생산기술연구소 1985 生産技術硏究 Vol.7 No.2
The study on the adsorption characteristics of zinc ion on activated carbon resolved itself into the following six points concerning the effect of pH, adsorption velocity, adsorption isotherm, cations, and anions. The results are as follows; 1. The adsorbed amount of zinc ion on activated carbon increased rapidly from equilibrium pH 4 to equilibrium pH 7, and zinc ion was absorbed easily in the neutral region and NH_(4)0H alkaline medium pH 7~11. 2. Adsorption isotherm of zinc ion on activated carbon was shown the Freundlich's equation. 3. Zinc ion was easily adsorbed in the form of complex anion such as ZnI_(4)^(2-) and Zn(CN)_(4)^(2-) respectively. 4. Adsorption of zinc ion on activated carbon is improved by the addition of halide ions. The order of this improvement of halide ions is F^(-)〉Cl^(-)〉Br^(-)〉I^(-). 5. The effect upon the adsorption of zinc ion on activated carbon presented itself in the order of influencing power such as S0_(4)^(2-)〉N0_(3-)〉CI^(-). 6. Zinc ion was adsorbed preferentially in the case of coexistence of Zn^(2+) and Ni^(2+).