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박영태,도갑수 慶北工業專門大學 1979 論文集 Vol.16 No.-
The adsorption of C.O.D in the waste water from the dyeing mill was studied to develop effective adsorbent by using zeolite mined out Yeung ill, Korea. The amount of C.O.C. adsorbed by the adsorbent was measured at constant time interval for the whole operationg runs. The effect of particle size of zeolite used, initial concentratiom of C.O.D in waste water were investigated, and the kinetics and the equilibriun of adsorption were discussed from experimental data. In the kinetic study, the adsorption by zeolite is known to be controlled by intraparticle diffusion and, interier diffusion, and the adsorption equilibrium concentration of C.O.D. on zeolite is nearly equal to that of granular active carbon. Therefore the Yeungill zeolite could be effectively used as economic adsorbent in order to treat waste water of the dyeing industries.
교반조에서 MIBK - 물계에 대한 최저교반속도와 액적크기에 관한 연구
박영태,도갑수,최호상 한국화학공학회 1985 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.23 No.1
교반조에서 MIBK-불 2성분계를 이용하여 임펠러 종류에 따른 최저교반속도와 액적크기를 측정하였다. 실험에서 얻은 최저교반속도와 계의 특성치 상관 관계식으로부터 예측된 최저교반속도를 비교 검토하였다. 실측치 N'와 예측치 N사이의 관계는 N'=N(1+x)이었으며, 본 장치에서는 임펠러의 종류에 따라 x의 값이 0.016∼0.048 범위에 있었다. 또한 임펠러 형태에 따른 액적크기의 빈도수분포를 측정하여 Sauler평균액적 크기를 구하였으며, 평균액적크기와 교반속도 및 임펠러의 크기사이에서 다음과 같은 실험식을 얻었다. D_(32)/L=kN_(we)^(-0.565) By using of Methyl-isobutyl-ketone (MIBK) - Water system in agitating vessel, the minimum rotational speed and drop size of dispersed phase were measured for several types of impeller. The experimental minimum rotational speed was compared with the predicted minimum rotational speed by an existing correlationship. The relationship of experimental N' and predicted N was N'= N(1+x), where x was in the range from 0.016 to 0.048 for each impeller type used. With frequency distribution, Sauter mean drop size was calculated for the impeller types used. For the Sauter mean diameter, the following correlation has been developed; D_(32)/L=kN_(we)^(-0.565)