표제지
목차
I. 서론 7
1. 연구의 배경 7
II. 이론적 배경 8
1. 오존(O₃)산화특성 8
1) 오존(O₃) 8
2) 오존의 반응성 9
3) 오존의 분해 메커니즘 11
2. 오존의 산화분해반응 13
1) 오존의 직접반응과 OH라디칼 반응 13
2) 오존의 직접반응(D형반응) 13
3) OH라디칼 반응(R형반응) 14
3. 특정물질의 오존과의 반응성 15
1) 페놀 15
III. 실험장치 및 방법 19
1. 실험장치 19
2. 실험방법 20
1) 용존오존 20
2) 페놀의 오존산화반응 20
3. 측정방법 20
1) 오존측정 20
2) 페놀측정 21
IV. 결과 및 고찰 22
1. 용존 오존 변화 특성 22
1) 초기 pH변화에 따른 용존오존변화 특성 22
2) 주입오존농도변화에 따른 가스상 오존의 용존 특성 24
3) 주입오존 유량변화에 따른 가스상 오존의 용존 특성 26
2. 조건에 따른 가스상 오존의 용존 특성 28
1) 초기 pH변화에 따른 페놀의 분해 특성 28
2) 주입오존농도 변화에 따른 페놀의 분해 31
3) 주입오존유량변화에 따른 페놀의 분해 34
4) MeOH주입에 따른 페놀의 분해 특성 37
V. 결론 40
1. 조건에 따른 가스상 오존의 용존 특성 40
2. 조건에 따른 페놀의 분해특성 41
참고문헌 43
Abstract 47
감사의 글 49
Table 1. Redoxy potential of oxidants 10
Table 2. Removal of phenol with only ozonation 16
Table 3. HPLC Conditions of Phenol analysis 21
Fig.1. Schematic diagram of ozone oxidation-reaction 15
Fig.2. Reaction of phenol and ozone 17
Fig.3. Phenol conversion in ozonation(30°C) 18
Fig.4. Schematic diagram of ozone reactor system 19
Fig.5. Variances of dissolved O₃ concentrations in the pilot with reaction time at various concentration of pH conditions ( DW, O₃: 5000ppm, 0.5LPM) 23
Fig.6. Variances of dissolved O₃ concentrations in the pilot with reaction time at various injection O₃ conditions ( DW, O₃: 0.5LPM) 25
Fig.7. Variances of dissolved O₃ concentrations in the pilot with reaction time at various flow rate conditions ( DW, O₃: 5000ppm) 27
Fig.8. Variances of phenol concentrations in the pilot with reaction time at various pH conditions (initial Phenol : 100mg/L, O₃: 5000ppm, 0.5LPM) 29
Fig.9. Removal rate of phenol in the pilot with reaction time at various pH conditions (initial Phenol : 100mg/L, O₃: 5000ppm, 0.5LPM) 30
Fig.10. Variances of phenol concentrations in the pilot with reaction time at various O₃ conditions (initial Phenol : 100mg/L, O₃: 1.0LPM) 32
Fig.11. Removal rate of phenol in the pilot with reaction time at various O₃conditions (initial Phenol : 100mg/L, O₃: 1.0LPM) 33
Fig.12. Variances of phenol concentrations in the pilot with reaction time at various flow rate conditions (initial Phenol : 100mg/L, O₃: 5000ppm) 35
Fig.13. Removal rate of phenol in the pilot with reaction time at various flow rate conditions (initial Phenol : 100mg/L, O₃: 5000ppm) 36
Fig.14. Variances of phenol concentrations in the pilot with reaction time at various methanol conditions (initial Phenol : 100mg/L, O₃: 5000ppm, 0.5LPM) 38
Fig.15. Removal rate of phenol in the pilot with reaction time at various methanol conditions (initial Phenol : 100mg/L, O₃: 5000ppm, 0.5LPM) 39