Transactions of the KSME C: Technology and Education (대한기계학회논문집 C: 기술과 교육)

The Korean Society of Mechanical Engineers (대한기계학회)
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Evaluation of Seawater Reverse Osmosis Desalination System with UF and Disk Filter as Pre-Treatment

UF와 디스크필터를 전처리시설로 이용한 역삼투압해수담수설비의 평가

  • Yang, Keun-Mo (Graduate school, Korea Maritime Univ.) ;
  • Lim, Dong-Hoon (Graduate school, Korea Maritime Univ.) ;
  • Kim, Joon Ha (Dept. of Environmental Science and engineering, Gwangju Institute of Science and Technology) ;
  • Jung, Hyung-Ho (Div. of Mechanical and Energy Systems Engineering, Korea Maritime Univ.)
  • 양근모 (한국해양대학교 대학원) ;
  • 임동훈 (한국해양대학교 대학원) ;
  • 김준하 (광주과학기술원 환경공학과) ;
  • 정형호 (한국해양대학교 기계.에너지시스템공학부)
  • Received : 2013.05.06
  • Accepted : 2013.06.05
  • Published : 2013.07.01
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Abstract

In the present study, sea water reverse osmosis desalination system was composed with an ultra-filtration membrane as a pre-treatment. Sea water was induced into the pre-treatment composed with an auto-screen filter and an ultra-filtration membrane. It was proved that the permeate of the pre-treatment was adequate for reverse osmosis desalination system by measuring the $SDI_{15}$ and the turbidity. Feed salinities was changed by mixing the brine and the permeate. Inlet salinities effected the performances of sea water reverse osmosis desalination system in a large amount such as the salt rejection, the recovery ratio, the pressure, the product salinity. Energy consumptions per the ton of the product were almost linearly increased with the inlet salinities.

본 연구에서는 한외여과막과 역삼투압막으로 이루어진 해수담수화장치를 구성하였다. 해수를 취수하여 디스크필터와 한외여과막을 이용한 전처리설비를 통과시켜 생산한 전처리수의 $SDI_{15}$와 탁도를 측정하여 역삼투압해수담수설비에 적합함을 밝혔다. 역삼투압해수담수설비의 부산물인 브라인을 전처리수와 혼합하여 역삼투압해수담수설비의 입구농도를 변화시켰다. 농도 변화실험에서, 해수농도가 역삼투압해수담수설비의 성능에 끼치는 영향을 실험으로 구하였다. 염배제율, 회수율, 생산수의 수질은 입구농도에 따라 많은 변화가 있었으며, 에너지소비량도 입구농도에 거의 선형적으로 상승하는 것을 실험으로 구하였다.

Keywords

References

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