SEE WATER DESALINATION SYSTEM USING PRESSURE-RETARDED OSMOSIS

The present invention relates to a seawater desalination system using a pressure-retarded osmosis (PRO) technique. Specifically, the seawater desalination system using a pressure-retarded osmosis technique according to an embodiment of the present invention comprises: a first pressure exchange appar...

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Bibliographische Detailangaben
Hauptverfasser:	YEO, IN HO, PARK, YONG GYUN, OH, YOUNG KHEE, KIM, DONG IK
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	CHEMISTRY METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	The present invention relates to a seawater desalination system using a pressure-retarded osmosis (PRO) technique. Specifically, the seawater desalination system using a pressure-retarded osmosis technique according to an embodiment of the present invention comprises: a first pressure exchange apparatus and a second pressure exchange apparatus for increasing the pressure by receiving seawater; an SWRO facility for producing generated water in which salt is filtered via a reverse osmosis membrane by receiving the seawater with the increased pressure, and for transmitting the concentrated salt water to the second pressure exchange apparatus; a first PRO facility for performing a pressure-retarded osmosis by receiving the concentrated salt water discharged from the second pressure exchange apparatus as PRO salt water, and by receiving PRO salt water from the outside thereof; and a second PRO facility for performing a pressure-retarded osmosis by receiving the PRO salt water discharged from the first pressure exchange apparatus. According to the present invention, the seawater desalination system using a pressure-retarded osmosis technique can have higher energy efficiency. 본 발명은 압력지연삼투 기술을 이용한 해수담수화 시스템에 관한 것이다. 구체적으로, 본 발명의 일 실시예에 따르면, 해수를 공급받아서 압력을 높이는 제 1 압력교환장치 및 제 2 압력교환장치, 압력이 높아진 해수를 공급받아서 역삼투막을 통해 염분이 여과된 생성수를 생산하고, 농축 염수는 상기 제 2 압력교환장치로 전달하는 SWRO 설비, 상기 제 2 압력교환장치에서 배출되는 상기 농축 염수를 PRO 염수로서 공급받고, 외부로부터 PRO 원수를 공급받아서 압력 지연 삼투 공정이 수행되는 제 1 PRO 설비, 및 상기 제 1 PRO 설비에서 배출되는 PRO 염수를 공급받아서 압력 지연 삼투 공정이 수행되는 제 2 PRO 설비를 포함하는 압력지연삼투 기술을 이용한 해수담수화 시스템이 제공될 수 있다.