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활성탄에 의한 헤테로고리화합물의 흡착에 미치는 관능기의 영향
손진언,이성식,김달한 한국화학공학회 1995 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.33 No.6
활성탄에 의한 수용액 중의 헤테로고리화합물의 흡착은 Freundlich형 등온식으로 설명할 수 있으며, Freundlich 상수의 곱 [k·n]은 끓는점(T_b)에 대하여 직선적으로 증가하였다. 포화흡착량(q_s)은 하메트상수(σ), 유발상수(σ^*) 및 극성상수(F)에 대하여 직선적으로 감소하였으며, 흡착속도는 표면확산이 지배적이었다. 표면확산계수(D_s)와 평형흡착량(q_e)과의 관계는 D_s=D_(so)·exp[a·q_e]로 표시할 수 있었으며, 관능기 종류 및 위치에 따라 속도인자 D_(so)와 a를 각각 구하여 Table 5에 제시하였다. The isotherm of heterocyclic compound in aqueous solution onto activated carbon was correlated with Freundlich type equation, and Freundlich constant product [k·n] appeared linear relationship with boiling point(T_b). Saturated adsorbed amount(q_s) decreased with hammett constant(σ), inductive constant (σ^*) and polar constant(F). Surface diffusion was considered to be dominant. Relationship between surface diffusivity(D_s) and equilibrium adsorbed amount(q_e) was D_s=D_(so)·exp[a·q_e]. Kinetic parameter D_(so) and a was shown Table 5 for kind and position of functional groups.
Vacuum Condensing Point 와 물질이동에 관한 Sublimatography(3)
손진언,김주봉 한국화학공학회 1973 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.11 No.3
We studied on the sublimatographic characters of sulfur as follows; 1) Vacuum condensing point of sulfur at different heating temperature and vacuum degree is obtained. 2) Amount of sublimation of sulfur is determined quantitatively by the sublimatography. 3) The vapor pressure, molar velocity of sublimation and mass transfer coefficient of sulfur are calculated by experimental data as follows; P_h/P_s=γ (γ=1.03) P_s^n=k G (n=0.977) (γP_s)^n'=k'G (n'=1.0) k_(gav)=1.3985 × 10^-2
손진언,이성식 동아대학교 생산기술연구소 1999 生産技術硏究所硏究論文集 Vol.4 No.2
This study focuses on the evaluation of toxicity changes at water treatment by bioassays, which are expected to give much more relable information regarding the effects on human health. Seven pesticides were added to the groundwater to prepare a model pesticide contaminated water. The changes in pesticide concentrations at ozonation and activated carbon treatments do not correspond to the changes in mutagenicity and cytotoxicity. Especially, the concentration of Dichlorvos and Thiobencarb were degraded with ozonation time increasing. However, the treated water showed different mutagenicity and mutagenicity and cytotoxicity, caused by the different reaction byproduct.
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.
손진언,이성식,이내우,김주봉 한국화학공학회 1986 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.24 No.1
金屬의 表面處理過程과 有毒性 重金屬의 製造施設에서 흘러나오는 시안 및 各種 重金屬이온을 同時에 處理하기 위하여 이들의 錯物生成 可能性과 그 mechanism을 조사하고, 인공적으로 만든 시안폐수용액에서 重金屬 錯物이 活性炭에 吸着되는 形態에 對하여 연구한 結果, 水銀은 Hg(CN)₄^(2-)와 Hg(CN)₃^-상태로 吸着되고 亞銀 및 카드뮴은 Zn(CN)₄^(2-) 및 Cd(CN)₄^(2-)로 吸着됨을 알았으며 이러한 關係는 시안농도 1.0×10^(-5)M - 1.0×10^(-1)M 범위에서 검토되었다. The possibility and the mechanism of complex formation have been studied for the simultaneous removal of cyanide and toxic heavy metals from mining and/or electroplating industrial wastewater. Several heavy metal ions were added into a synthesized waste water containing cyanide and were adsorbed on activated carbon forming cyanide complexes, and their adsorption forms were discussed. It is suggested, in the range of 1.0×10^(-5)M to 1.0×10^(-1)M CN^-, thay mercury ion adsorbs as forms of Hg(CN)₄^(-2) and/or Hg(CN)₃^- whereas zinc and cadmium ions as those of Zn(CN)₄^(2-) and Cd(CN)₄^(-2), respectively.