This study evaluates the potential of various coagulants to enhance the efficiency of total phosphorus removal facilities in a sewage treatment plant. After analyzing the existing water quality conditions of the sewage treatment plant, the coagulant of poly aluminium chloride was experimentally applied to measure its effectiveness. In this process, the use of poly aluminium chloride and polymers in various ratios was explored to identify the optimal combination of coagulants. The experimental results showed that the a coagulants combination demonstrated higher treatment efficiency compared to exclusive use of large amounts of poly aluminium chloride methods. Particularly, the appropriate combination of poly aluminium chloride and polymers played a significant role. The optimal coagulant combination derived from the experiments was applied in a micro flotation method of real sewage treatment plant to evaluate its effectiveness. This study presents a new methodology that can contribute to enhancing the efficiency of sewage treatment processes and reducing environmental pollution. This research is expected to make an important contribution to improving to phosphorus remove efficiency of similar wastewater treatment plant and reducing the ecological impact from using coagulants in the future.

1. 서 론
2. 실험재료 및 방법
    2.1 연구대상시설 개요
    2.2 연구대상시설 총인처리시설
    2.3 마이크로부상공법
    2.4 연구대상시설 운영 현황
    2.5 Jar-test 실험방법
    2.6 총인처리시설 폴리머 용해장치
3. 결과 및 고찰
    3.1 연구대상시설 jar-test 결과
    3.2 응집제 적용에 따른 pH와 SS 변화
    3.3 실규모 총인처리시설 운영결과
4. 결 론
사 사
References

• 김규원(에코비트워터 김천사업소) | Gyu-won Kim (Gimcheon Works Environment Team, Ecorbit Water)
• 최윤성(에코비트워터 예천하수슬러지사업소) | Yun-Seong Choi (Yecheon Sewage Sludge Treatment Plant, Ecorbit Water)
• 이승환(금오공과대학교 환경공학과) | Seung-Hwan Lee (Department of Environment Engineering, Kumoh National Institute of University) Corresponding author