Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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The present and future of SWRO-PRO hybrid desalination technology development

SWRO-PRO 복합해수담수화 기술의 현재와 미래

  • Chung, Kyungmi (Environment Process Engineering Team, Global Engineering Division, GS Engineering and Construction) ;
  • Yeo, In-Ho (Environment Process Engineering Team, Global Engineering Division, GS Engineering and Construction) ;
  • Lee, Wonil (Environment Process Engineering Team, Global Engineering Division, GS Engineering and Construction) ;
  • Oh, Young Khee (Environment Process Engineering Team, Global Engineering Division, GS Engineering and Construction) ;
  • Park, Tae Shin (Environment Process Engineering Team, Global Engineering Division, GS Engineering and Construction) ;
  • Park, Yong-gyun (Environment Process Engineering Team, Global Engineering Division, GS Engineering and Construction)
  • 정경미 (GS 건설, Global Engineering 본부, 환경공정설계팀) ;
  • 여인호 (GS 건설, Global Engineering 본부, 환경공정설계팀) ;
  • 이원일 (GS 건설, Global Engineering 본부, 환경공정설계팀) ;
  • 오영기 (GS 건설, Global Engineering 본부, 환경공정설계팀) ;
  • 박태신 (GS 건설, Global Engineering 본부, 환경공정설계팀) ;
  • 박용균 (GS 건설, Global Engineering 본부, 환경공정설계팀)
  • Received : 2016.06.06
  • Accepted : 2016.07.15
  • Published : 2016.08.15
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Abstract

Desalination is getting more attention as an alternative to solve a global water shortage problem in the future. Especially, a desalination technology is being expected as a new growth engine of Korea's overseas plant business besides one of the solutions of domestic water shortage problem. In the past, a thermal evaporation technology was a predominant method in desalination market, but more than 75% of the current market is hold by a membrane-based reverse osmosis technology because of its lower energy consumption rate for desalination. In the future, it is expected to have more energy efficient desalination process. Accordingly, various processes are being developed to further enhance the desalination energy efficiency. One of the promising technologies is a desalination process combined with Pressure Retarded Osmosis (PRO) process. The PRO technology is able to generate energy by using osmotic pressure of seawater or desalination brine. And the other benefits are that it has no emission of $CO_2$ and the limited impact of external environmental factors. However, it is not commercialized yet because a high-performance PRO membrane and module, and a PRO system optimization technology is not sufficiently developed. In this paper, the recent research direction and progress of the SWRO-PRO hybrid desalination was discussed regarding a PRO membrane and module, an energy recovery system, pre-treatment and system optimization technologies, and so on.

Keywords

References

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