표제지
Abstract
목차
제1장 서론 10
1.1. 연구배경 10
1.2. 연구목적 12
제2장 문헌연구 13
2.1. 플라스틱의 생산량과 특성 13
2.1.1. 플라스틱의 생산량 13
2.1.2. 플라스틱의 특성 14
2.2. 환경 중 미세플라스틱의 발생과 분석법 16
2.2.1. 미세플라스틱의 발생 16
2.2.2. 미세플라스틱의 발생잠재량 추정 17
2.2.3. 미세플라스틱의 환경적 문제 23
2.2.4. 미세플라스틱의 정량·정성 분석법 24
2.3. 생물학적 하수처리시설 32
제3장 실험재료 및 방법 36
3.1. 실험재료 36
3.2. 실험방법 40
제4장 결과 및 고찰 43
4.1. 공법별 시료의 기초조사 43
4.2. 공법별 미세플라스틱의 농도 44
4.3. 공법별 미세플라스틱의 연간 배출량 53
제5장 결론 55
참고문헌 57
Table 1. Materials of thermoplastics and thermosets 14
Table 2. Density of each plastics type 15
Table 3. Examples of primary microplastics and generation mechanism of second... 16
Table 4. Estimate of annual emission and percentage of microplastics by source 22
Table 5. Metal concentrations on/in polyethylene pellets on sea water 24
Table 6. Diversities of sampling site(depth) and tool by sample type 25
Table 7. Number of public sewage treatment facilities by each process and... 33
Table 8. Flow mapping and summary of SBR, A2O and Media process 35
Table 9. Facility capacity and sampling date of each process 36
Table 10. Proximate analysis of sludge cake and SS removal efficiency 43
Table 11. Concentration of microplastics at the MSBR 46
Table 12. Concentration of microplastics at the DNR 47
Table 13. Concentration of microplastics at the DeNiPho 48
Table 14. SS and microplastics removal efficiency at the each process 49
Table 15. Amount of contained microplastics in influent, effluent and sludge cake at the each process 54
Fig. 1. Annual plastics production in the world 13
Fig. 2. Procedure of quantitative and qualitative analysis for microplastics at... 31
Fig. 3. Sampling points of MSBR process 37
Fig. 4. Sampling points of DNR process 38
Fig. 5. Sampling points of DeNiPho process 39
Fig. 6. Procedure of quantitative and qualitative analysis for microplastics at the... 42
Fig. 7. Photos of microplastics by USB digital microscope 50
Fig. 8. Peak of black and tyre fragments confirmed by infrared spectroscope 52