표제지
목차
ABSTRACT 12
제I장. 서론 13
제II장. 이론 16
II-1. 부상분리 공정 16
II-1-1. 부상분리 개념 16
II-1-2. 미세기포의 부상기작 17
II-2. 막분리 공정 19
II-2-1. 막분리 개념 19
II-2-2. 막분리 메커니즘 27
II-2-3. 막오염 31
II-2-4. 막분리 장치설계 35
II-2-5. 막분리 응용분야 35
제III장. 실험 재료 및 방법 41
III-1. 실험 재료 41
III-1-1. 부상분리에 의한 색 제거 41
III-1-2. 부상컬럼과 정밀여과막 분리공정에 의한 색 제거 41
III-2. 실험 방법 46
III-2-1. 부상분리에 의한 색 제거 46
III-2-2. 부상컬럼과 정밀여과막 분리공정에 의한 색 제거 46
III-2-2-1. 부상컬럼 분리공정 46
III-2-2-2. 정밀여과막 분리공정 47
제IV장. 결과 및 고찰 48
IV-1. 부상분리에 의한 색 제거 48
IV-2. 부상컬럼과 정밀여과막 분리공정에 의한 색 제거 52
IV-2-1. 부상컬럼 분리공정 52
IV-2-1-1. 아민류 투여량 및 pH 변화에 따른 색 제거율 52
IV-2-1-2. 아민류 임계투여량 및 염료 몰비에 따른 색 제거율 53
IV-2-2. 정밀여과막 분리공정 60
IV-2-2-1. PAC 첨가에 따른 정밀여과막의 색 제거율 60
IV-2-2-2. 정밀여과막의 backflush에 따른 투과플럭스 회복도 64
제V장. 결론 65
참고문헌 67
감사의 글
Table II-1. Comparisons between membrane processes 27
Table II-2. Application hybrid process in membrane separation 40
Table III-1. Experimental equipment for microfiltration system 45
Table IV-1. Removal efficiency of unit process 61
Table IV-2. Degree of recovery with backflush time 64
Fig. II-1. Schematic diagram of float (floc-bubble agglomerates) formation 18
Fig. II-2. Schematic diagram of osmosis and reverse osmosis 21
Fig. II-3. Membrane module 22
Fig. II-4. Membrane separation process 23
Fig. II-5. Useful range of various separation processes 24
Fig. II-6. Hydrogen model for water transfer in cellulose acetate membrane 29
Fig. II-7. Schematic representation of preferential sorption-capillary flow mechanism for reverse osmosis separation of sodium chloride from aqueous solution 30
Fig. II-8. Concentration polarization phenomenon 32
Fig. III-1. Colours removed from solution by flotation separation: Basic yellow 28 (C.I. 45048) 42
Fig. III-2. Colours removed from solution by flotation separation: Direct orange 31 (C.I. 23655) 43
Fig. III-3. Colours removed from solution by flotation separation: Direct red 81 (C.I. 28160) 44
Fig. IV-1. Colour (basic yellow 28) removal by flotation as a function of collector concentration [mg/L]. Collector; sodium lauryl sulfate (NaLS, pH 5-6), initial colour concentration; 50 mg/L... 49
Fig. IV-2. Colour (basic yellow 28) removal by flotation as a function of collector concentration [mg/L]. Collector; sodium oleate (NaOI, pH 9.0), initial colour concentration: 50 mg/L... 50
Fig. IV-3. Effect of collector: Colour concentration ratio on colour (basic yellow 28) removal by flotation. Initial colour concentration; 50 mg/L (1.45x10-4M(이미지참조)) 51
Fig. IV-4. Colour (direct red 81) removal by flotation with various amines as collector (9 mg/L) 54
Fig. IV-5. Colour (direct red 81) removal by flotation with various amines as collector (14 mg/L) 55
Fig. IV-6. Colour (direct red 81) removal by flotation with dodecylamine (at pH 4) 56
Fig. IV-7. Colour (direct red 81) removal by flotation with dodecylamine (at pH 6) 57
Fig. IV-8. Effects of pH and a dosage of dodecylamine on colour (direct red 81) removal by flotation 58
Fig. IV-9. Effect of collector (dodecylamine) concentration on colour (direct red 81) removal by flotation 59
Fig. IV-10. Effect of flow rates on permeate flux 62
Fig. IV-11. Effect of flow rates on rejection rate 63