표제지
목차
I. 서론 9
II. 문헌 연구 11
2.1. 점오염원과 비점오염원 정의 11
2.2. 점오염원 발생현황 및 관리 13
2.3. 비점오염원 발생현황 및 관리 14
2.3.1. 비점오염원 발생현황 14
2.3.2. 비점오염원 관리현황 15
2.3.3. 비점오염원의 유출특성 16
2.4. 빗물 유출수 및 방류수의 재이용 19
2.5. 막분리 기술 25
2.5.1. 막분리 기술 및 종류 25
2.5.2. 분리대상에 따른 막종류 27
2.5.3. 막분리 공정과 공업적 이론 29
III. 실험장치 및 분석방법 35
3.1 실험장치 및 운전 35
3.1.1. 빗물 유출수/방류수 실험장치 및 방법 35
3.1.2. 실험분석 방법 39
IV. 실험결과 및 고찰 40
4.1. MF 여과막을 이용한 전처리 실험결과 40
4.1.1. PVDF막에 의한 전처리 실험 40
4.1.2. CE 여과막에 의한 전처리 실험 45
4.1.3. PCF막에 의한 전처리 실험 50
4.2. RO를 이용한 재이용수 실험결과 52
V. 결론 59
참고문헌 60
ABSTRACT 64
국문초록 66
Table 2-1. Point source and non-point Source 12
Table 2-2. Pollutants loading of four main rivers in Korea 14
Table 2-3. Nonpoint source management and policy in main 4 rivers 16
Table 2-4. Nonpoint source loading according to land-use type 18
Table 2-5. Producing water recycling in WWTPs, South Korea 21
Table 2-6. Facility capacity in major cities, South Korea 23
Table 2-7. Status of rainwater harvesting utilization in complex house 23
Table 2-8. Status of rainwater harvesting utilization in business building 24
Table 2-9. Status of rainwater harvesting utilization in school 25
Table 2-10. Characteristics of separation membrane applied in sewage treatment processes 29
Fig. 2-1. Pollutants loading from point and nonpoint source. 12
Fig. 2-2. Effect of runoff according to time. 17
Fig. 2-3. Status of recycling water use in major cities, South Korea. 22
Fig. 2-4. 처리대상물질의 종류와 크기에 대한 각 막여과법 적용범위. 30
Fig. 2-5. Crossflow 여과의 경계층 모델. 32
Fig. 2-6. 역삼투막의 원리. 33
Fig. 3-1. PCF membrane operation. 36
Fig. 3-2. MF filtration system. 37
Fig. 3-3. MF membrane operation. 37
Fig. 3-4. RO membrane operation. 38
Fig. 3-5. Experimental place. 38
Fig. 3-6. HACH Turbidimeter. 39
Fig. 3-7. HACH Water Meter. 39
Fig. 4-1. Flux and turbidity changes during PVDF membrane process. 42
Fig. 4-2. TOC changes during PVDF membrane process. 42
Fig. 4-3. COD changes during PVDF membrane process. 43
Fig. 4-4. T-N changes during PVDF membrane process. 43
Fig. 4-5. T-P changes during PVDF membrane process. 44
Fig. 4-6. SS changes during PVDF membrane process. 44
Fig. 4-7. Flux and turbidity changes during CE membrane process. 47
Fig. 4-8. TOC changes during CE membrane process. 47
Fig. 4-9. COD changes during CE membrane process. 48
Fig. 4-10. T-N changes during CE membrane process. 48
Fig. 4-11. T-P changes during CE membrane process. 49
Fig. 4-12. SS changes during CE membrane process. 49
Fig. 4-13. Turbidity changes during PCF operation. 51
Fig. 4-14. Turbidity changes in pretreated run-off during RO process. 53
Fig. 4-15. SS changes in pretreated run-off during RO process. 53
Fig. 4-16. COD changes in pretreated run-off during RO process. 54
Fig. 4-17. T-N changes in pretreated run-off during RO process. 54
Fig. 4-18. T-P changes in pretreated run-off during RO process. 55
Fig. 4-19. Turbidity changes in pretreated secondary effluent during RO process. 56
Fig. 4-20. SS changes in pretreated secondary effluent during RO process. 56
Fig. 4-21. COD changes in pretreated secondary effluent during RO process. 57
Fig. 4-22. T-N changes in pretreated secondary effluent during RO process. 57
Fig. 4-23. T-P changes in pretreated secondary effluent during RO process. 58