Gas hydrate applications for desalination and wastewater treatments

가스하이드레이트를 이용한 고농도 해수담수 및 폐수처리 기술 Gas hydrate applications for desalination and wastewater treatments Contact Korea institute of Industrial Technology Dr. Ju Dong Lee Tel : +82 -51 -974 -0233 E-mail : julee@kitech. re. kr Water treatment pilot plant KITECH Water purifying process by gas hydrate principle - Non-membrane and non-distillation type - Exclusion of any contaminants or salts by hydrate formation and production of pure water by hydrate dissociation Method for Water Treatment Using Hydrate-Purifying Process - US 14/421, 953, SA 515360039, KR 1327545 Method for Manufacturing Gas Hydrate Using a Plurality of Guest Gas and Water - US 14/421, 934, JP 2015 -527362, KR 1358080 Device and Method for Continuous Hydrate Production and Dehydration by Centrifugal Force - US 8, 367, 880, JP 5156903, KR 1161011 Apparatus and Method for Continuously Producing and Pelletizing Gas Hydrates Using Dual Cylinder - US 8, 486, 340, JP 4988009, KR 1189801 - High salinity water treatments (including Seawater) Waste water treatments (including Radioactive ion) Treatment of Shale Gas produced water Rare earth elements (La, Se, Li. . ) recovery Separation process for pharmaceutical & food industry (Desalination from real seawater) (Radioactive & Heavy metal removal - Capacity : over 2 ton/day - Removal efficiency from 1 stage process • Desalination : ~ 90 % • Radioactive & metal : ~95 % • COD, TP, TN, TDS : ~90 % - Process conditions : 3~10 bar at room temperature - Application for water purifying or element recovery under high salt (> 10%) and high TDS (> 100, 000 ppm) conditions - Pre-treatments (p. H adjustment additive and etc. ) for water treatment are not required - In the high salt or severe water pollution, the gas hydrate process can be apply to water treatment - Furthermore, it is more economical than distillation or other process - Applicable to various separation processes such as water purifying, sewage & industrial waste water treatment and element recovery industries Confidential