纖維狀活性炭을 利用한 生物活性炭의 吸着特性 = Adsorption Characteristics of the Biological Activated Carbon Fiber by Chromatography

다국어 초록 (Multilingual Abstract)

Activated carbon fiber(ACF) is an attractive adsorbent since it has a high specific external surface area like powdered activated carbon but is easier to handle since it is easily separated from fluid. Also since fiber radius is as small as about ten microns, intra-fiber diffusion of adsorbate cannot be the rate determining step even in liquid phase absorption and then it might provide a broad field of application in the water treatment area as well as in gas adsorption.
When ACF is applied to water treatment, high external surface area provides a good environment for attached growth of bacteria and then an cooperative effect of adsorption and bacterial reaction may be emphasized.
The adsorption equilibrium constant were determined from the first moments of the pulses and the second moments shelved that the axial dispersion was a controlling mechanism in broadening of the peaks.
It is suggested that for biological activated carbon fiber there is a large contribution of bacterial activity to the adsorption equilibrium constant. Rate determining step in an ACF bed was the longitudinal dispersion of adsorbate in the column. Axial dispersion coefficient,?? was determined to be in proportional to flow rate and Pe=??independent of existence of bacteria, where ?? is the diameter of ACF.

목차 (Table of Contents)

• Ⅰ. 緖 論
• Ⅱ. 實 驗
• Ⅲ. 結果 및 考察
• Ⅳ. 結 論
• 參考文獻
• Summary