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J Korean Soc Environ Eng > Volume 38(5); 2016 > Article
J Korean Soc Environ Eng 2016;38(5): 255-268. doi: https://doi.org/10.4491/KSEE.2016.38.5.255
국내 및 해외의 해수담수화 기술 비교분석
황문현, 김인수
광주과학기술원 글로벌담수화연구센터
Comparative Analysis of Seawater Desalination Technology in Korea and Overseas
Moon-Hyun Hwang, In S. Kim
Global Desalination Research Center, Gwangju Institute of Science and Technology
Corresponding author  In S. Kim ,Tel: 062-715-3381, Fax: 062-715-2434, Email: iskim@gist.ac.kr
Received: February 29, 2016;  Revised: April 6, 2016;  Accepted: April 11, 2016.  Published online: May 31, 2016.
Climate change has increased the need to secure a new water resource in addition to the traditional water resources such as surface water and ground water. The seawater desalination market is growing sharply in accordance with this situation in Korea, “seawater engineering & architecture of high efficiency reverse osmosis (SEAHERO)” program was launched in 2007 to keep pace with world market trend. SEAHERO program was completed in 2014, contributed to turn the domestic technology in evaporative desalination technology to RO desalination technology. Currently, it is investigated that the average specific energy consumption of the whole RO plant is around 3.5 kWh/m3. The Busan Gi-jang plant has shown 3.7~4.0 kWh/m3, including operational electricity for plant and maintenance building. Although not world top level, domestic RO technology is considered to be able to compete in desalination market. Separately, many researchers in the world are developing new technologies for energy savings. Various processes, forward osmosis (FO), membrane distillation (MD) process are expected to compete with RO in the future market. In Korea, FO-RO hybrid process, MD and pressure retarded osmosis (PRO) process are under development through the research program in Ministry of Land, Infrastructure and Transport (MOLIT). The desalination technology level is expected to decrease to 2.5 kWh/m3.
Key Words: Seawater Desalination, Enegy Efficiency, SeaHERO Program, FO-RO Hybrid, Membrane Distillation
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