液膜에 의한 廢水중의 重金屬이온의 分離

孫晋彦,李成植,金鍾和,全成均 동아대학교 환경문제연구소 1986 硏究報告 Vol.9 No.1

The purpose of this paper was to separate the copper and nickel ions from waste water using supported liquid membrane The effect of a given amount of carrier and ammonia concentration of up-stream was described. We used the LIX65N as carriers. The results were as follows 1. The distribution ratio of copper ions at equilibrium was shown linear increment according o the mole ratio of carrier concentration versus the concentration of metal ions increased to 2.0. The maximum distribution ratio of copper ions exceeded that of nickel by approximately 4-fold when the liquid membrane was saturated by carrier 2. The important parameters governing flux were carrier and ammonia concentration. We compared these two parameters, and then the latter influenced more than the former to get higher flux. The copper ions reacted with ammonia in the up-stream, it formed a complexes of Cu(NH₃)₄^(2+), and then diffused to interface of liquid membrane. 3. The flux of metal ions were increased with enlarging the distribution ratio of ordinary extraction. The principle of coupled transport was carried out by the difference of concentration of hydrogen ions. 4. We can be selectively separated in the mixing soultion of copper and nickel ions using LIX65N as carrier.

活性炭에 의한 有機化合物의 吸着메카니즘에 관한 연구 : 크로마토법에 의한 活性炭素纖維上의 덱스트로우스水溶掖吸着 Aqueous Phase Adsorption of Dextrose on the Activated Carbon Fiber by Chromatography

孫晋彦,鈴木基之 동아대학교 환경문제연구소 1987 硏究報告 Vol.10 No.1

Liquid phase adsorption of dextrose solution on the activated carbon fiber(ACF) was measured by chromatographic method in a packed column. Adsorption equilibrium constant, K_(a) was found to be 73㎤/g on ACF without bacteria growth, while in the bacterial ACF packed column K_(a) was 113㎤/g. 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 and ACF bed was the longitudinal dispersion of adsorbate in the column. Axial dispersion coefficient, E_(z) was determined to be in proportional to flow rate and Pe=d_(p)u/E_(z)=0.0066 independent of existence of bacteria, where d_(p) is the diameter of ACF.

오존에 의한 식물플랑크톤 제거

손진언,이영식,류동춘 동아대학교 공과대학 부설 한국자원개발연구소 1995 硏究報告 Vol.19 No.2

Phytoplankton in drinking water source bring about variation of pH and produce turbidity and color. They also cause filter clogging and interference of coagulation-sedimentation line in water treatment process and become THMs precusors which resulted from metabolic material of phytoplankton cells and dissolved used at the oxidation step in water treatment plant forms harmful by-products such as THMs, especially in contact with water containg high phytoplankton concentration. This study investigated effect of phytoplankton removal by ozonation as a replacement for chlorination.

회동호의 수질과 식물플랑크톤

손진언,이영식,김상구,류동춘,정종문,류재익 동아대학교 환경문제연구소 1995 硏究報告 Vol.18 No.1

Environmental factors of Quality were Temperature, pH, DO, COD, NH₄^(+)-N, No₂^(-)-N, NO₃^(-)-N, PO₄^(3-)-P, transparency and Chl-a. The values range were 3.3-31℃, 7.0-9.3, 8.0-16.8mg/l, 2.9-6.5mg/l, 0.0l-0.8mg/l, 0.0l-0.15mg/l, 0.8-3.7mg/1, 0.01-0.l7mg/l, 0.5-2.0m, 3.1-49.8mg/l, respectively. The phytoplankton are identified as 170taxa, and the order of appearing frequency is as following; Chlorophyceae, Bacillaripphyceae, Cyanophyceae, Chrysophyceae, Euglenophyceae, Dinophyceae. The causative species of red tide were identified as Microcystis aeruginosa, Trachellomonas hispida, Ceratium hirundinella,' Peridinium, Melosira italica, Staurastrum dorsidentiferum var. ornatum. Minimum Standing crops of algae cell was 728 cell/ml at point 4 on December and Maximum Standing crops of algae cell was 4.68×106 cell/ml at point 2 on August. Dominance species are Cyclotella glomerata and Microcystis aeruginosa during winter to spring season and summer to autumn.

泡沫分離에 의한 亞鉛이온의 吸着特性

孫晋彦,李成植 동아대학교 환경문제연구소 1981 硏究報告 Vol.5 No.1

Foam Separations in batch operation were carried out in the system of ZnCl₂-Sodium lauryl sulfate in water. From the results, the technique of foam separations is applicable to purifying for surfactant Zinc Ion as found in wastewater treatment. The surface excess of Zinc Ion was a function of bulk concentration, itself and surfactant concentration, and Langmuir adsorqtion model, was fitted.

고정층 활성탄탑에서 페놀류의 흡착

孫晋彦,金達漢,金弘龍,李秉瑄 東亞大學校 大學院 1989 大學院論文集 Vol.14 No.-

Experiments and theoretical analysis of the adsorption of phenols in the fixed bed column packed with activated carbon were performed and following results were obtained. 1. Experimental results shows good agreement with theoretical model on the adsorption of phenols in the fixed bed column. 2. In the adsorption column, particle size has critical effect on the break point compared with flow rate and height of bed. 3. Theoretical model established in this experiment can estimate the optimum values of various factors. 4. Domestic activated carbon has nearly same amount of adsorption as imported activated cabon. 5. Equilibrium relationships and diffusion coefficients from the experiments on the nitrophenols also showed good agreement with those from theoretical model.

纖維狀活性炭(ACF)을 이용한 液相吸差칼럼의 混合擴散에 관한 硏究

孫晋彦,鈴木基之,李時元 釜山敎育大學 1988 부산교육대학 논문집 Vol.24 No.1

As for ACF the adsorption rate is at high speed, because its fiber radius is small and its specific external surface area is large. But the adsorption tower design is necessary enough to study for its great price. This thesis is the experimental study of mixing diffusion in determining factor during the liquid phase adsorption on ACF packing layer.

활성탄에 의한 카페인 및 니코틴의 흡착특성

손진언,이성식,김달한,유명호,이만식 동아대학교 환경문제연구소 1994 硏究報告 Vol.17 No.1

Adsorption equilibrium and kinetics of Caffeine and Nicotine from aqueous solution on activated carbon were determined experimentally in a batch system. Then, the equilibrium data were expressed by the Freundlich type and the equilibrium constants were obtained. Diffusion coefficient were determined by comparing experimental decay curve with theoretical ones. Surface diffusion was consided to be dominant and the value of diffusion coefficient were depent of the amount adsorbed and the equilibrium concentration. Domestic activated carbon has nearly same amount of adsorption as imported activated carbon made by CALGON carbon Corp.

이원분산마크로장방형수지에 의한 파라니트로페놀의 흡착

손진언,김달한,후루야에이지,조영삼,이성식,야마시타세이치 東亞大學校 大學院 1991 大學院論文集 Vol.16 No.-

Uptake curves were obtained for p-nitrophenol/XAD-2000 resin system using a shallow-bed method for various concentration ranges at 298.2K. Distilled water was employed as solvent. The values of effective intraparticle diffusivity were detrermined by comparing experimental and theoretical uptake curves. The values obtained for solvent i. e, distilled water system was not dependent on the amount adsorbed in the higher concentration range. Those results shows that, except in the region where there is a low adsorbed amount, and adsorber packed with macrorecticular resin particles can be designed using a traditional pore diffusion model.

纖維狀活性炭을 利用한 生物活性炭의 吸着特性

李時元,孫晋彦,鈴木基之 東亞大學校 大學院 1989 大學院論文集 Vol.14 No.-

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.