The number, size, and material distribution of microplastics (MPs) sized 20-200 μm in the raw water and water treatment processes were analyzed using FT-IR in three water treatment plants in Jeju Province. The number of MPs was detected at 0.075-0.620 MP/L in raw water and 0.040-0.047 MP/L in filtered water, which is relatively lower than the results of other studies. Regarding the size of the MPs, particles sized 20-50 μm in both the raw water and the treated water accounted for the highest proportion, representing 65.6% and 56.3% of the total, respectively. In terms of MP type distribution, polypropylene (PP) was identified as the main type at 58.7%. In the water purification process, the MPs removal efficiency was the highest at 93.5% in the sedimentation and rapid filtration process, followed by 58.4% in membrane filtration and 40.0% in slow filtration. Continuous monitoring of the distribution of MPs in raw water and water treatment processes is recommended.

ABSTRACT
1. 서 론
2. 연구대상 및 방법
    2.1 연구대상
    2.2 연구방법
3. 결 과
    3.1 미세플라스틱 개수 분포
    3.2 미세플라스틱 크기 분포
    3.3 미세플라스틱 유형 분포
    3.4 정수처리 공정별 미세플라스틱 분포
4. 결 론
사 사
References

• 문승리(제주대학교 환경공학과) | Seungri Moon (Department of Environmental Engineering, Jeju National University)
• 김진근(제주대학교 환경공학과) | Jinkeun Kim (Department of Environmental Engineering, Jeju National University) Corresponding author