논문 상세보기
pp.401-408
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 CO2 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.
2. 압력지연삼투 (Pressure RetardedOsmosis, PRO) 기술 이란?
3. 압력지연삼투 (Pressure RetardedOsmosis, PRO) 기술개발 현황
4. 압력지연삼투 (Pressure retardedosmosis, PRO) 공정의 핵심 기술
4.1 PRO 전용막 및 모듈
4.2 PRO 전처리 기술
4.3 PRO 에너지 회수장치
4.4 PRO 막오염
5. 압력지연삼투 (Pressure retardedosmosis, PRO) 기술의 미래
5.1 PRO 막 및 모듈 성능 개선
5.2 PRO 막오염 저감 및 저에너지 전처리 선정
5.3 PRO 공정 최적화
6. 결 론
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