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이성식,전성균,유명호 동아대학교 환경문제연구소 1996 硏究報告 Vol.19 No.2
Values of intraparticle effective diffusivity, D_(e) were determined in a completely mixed batch reactor(CMBR) with the aid of the stepwise isotherm linearization for pyridine, 3-picoline and 4-picoline-domestic GAC system. For all systems, the pore diffusivity, D, could be obtained from D, with the paralled diffusion model and Neretnieks procedure. From the results, it became clear that the ratio of D_(p)/D_(AB) is almost constant, and the average ratio was about 3.44 of pyridine, 2.32 of 3-picoline, and 2.00 of 4-picoline. The values of tortuosity factor of domestic GAC was obtained as 1.99.
입상활성탄에 의한 방향족, 지방족고리 아민류 및 아미노산의 액상흡착
이성식,김형준,유명호,박성은 동아대학교 공과대학부설 생산기술연구소 1998 生産技術硏究所硏究論文集 Vol.3 No.1
Equilibrium studies for the adsorption of aromatic, alipatic cyclic amines and amino acid from aqueous solutions onto granular activated carbon have been carried out at 298K. Two and Three-parameter isotherms were tested. Among the equations tried, the two-parameter equations of Freundlich equation yield a better fit, The Langmuir equation, However gives the poorest overall fit. For three-parameter isotherm equation, the Redlich-Peterson equation gives the most satisfactory fit over the entire range of concentrations. The adsorption amounts of the aromatic amines onto GAC increase with the number of methyl group in pyridine ring.