This study was conducted to estimate the removal efficiency of algae by a mechanical Screw Brush Cone Filter in a lake. The device used a stainless steel cone-shaped filter with a screw brush. The ability of the developed device to remove algae larger than 20μm in Lake ChaSa, Gwangyang city was tested from August to September 2014. The results show that the removal rates for chlorophyll-a, suspended solids and volatile suspended solids were 44-87%(mean 61%), 35-54%(mean 40%), and 37-46%(mean 43%), respectively. This study also discusses equipment and device operation costs and device application problems, and suggests in situ. solutions to these problems.

Abstract
 1. 서 론
 2. 재료 및 방법
  2.1. 조류제거 콘 필터 장치 설계 및 제작
 3. 조류 제거율 평가
 4. 장치의 현장적용 및 조류 제거율 평가 결과
  4.1. 조사현장 선정 및 일반수질 항목 조사 결과
  4.2. 조류제거 평가 결과
  4.3. 장치의 경제성과 현장 적용성
 5. 결 론
 REFERENCES

• 김도희(목포해양대학교 환경생명공학과) | Do-Hee Kim (Department of Marine Environmental Engineering & Biotechnology, Mokpo National Maritime University) Corresponding author