A Study on the Introduction of RO Facility for Jeju Samyang Water Source

제주도 삼양 수원지 RO 시설 도입 연구

Kim, Woochan;Kim, Jinkeun

  • Received : 2015.02.02
  • Accepted : 2015.09.01
  • Published : 2015.12.15


Pollutants removal efficiency in pretreatment(GAC filter, multi-media filter, disk filter) and RO facilities was investigated for the Jeju Samyang spring water source where raw water intake has been stopped due to sea water intrusion. In addition, preliminary feasibility analysis was conducted between RO and groundwater intake systems. Turbidity removal in 4 different pretreatment processes was less than 25% due to low concentration of turbidity(i.e., less than 0.21 NTU), while multi-media filter is recommended for the pretreatment facility based on the low organic content in raw water as well as cheaper operation and maintenance cost. The average concentration of $Cl^-$ in raw water was 691.4 mg/L, while that of RO permeate was 9.1 mg/L(i.e., removal efficiency was 98.4%). In addition, TDS removal efficiency was 98.1%, which was quite high. The production cost for RO system($Q=4,000m^3/d$) was $362.1won/m^3$ considering installation, operation and maintenance cost for 30 years. While that of groundwater was $262.6won/m^3$ which was low compared to the RO system. However, it is recommended to introduce RO system for Samyang water source rather than new groundwater development because Samyang water source has been discharged to the sea without any usage, while groundwater can be used for other purpose as a sustainable water source.




  1. AWWA (2007) Reverse osmosis and nanofiltration, 2nd Ed. AWWA.
  2. AWWA (2011) Water quality and treatment, 6th Ed. AWWA.
  3. Jaewon engineering (2014) Feasibility analysis on water quality improvement methods of Jeju Samyang water source.
  4. Jeju special self-governing province, Division of water supply (2015)
  5. Jemin Ilbo (2013)
  6. Kim, W. (2015) A study on introduction of desalination process for jeju samyang 3rd water source, Master thesis, Jeju National University.
  7. Korea Water Works Association(KWWA) (2010) Standards for water supply facilities.
  8. MOGAHA(Ministry of Government Administration and Home Affairs) (2015)
  9. Segye Ilbo (2014)


Supported by : 제주대학교