SYSTEM MAKING FRESH WATER FROM SEA WATER USING REVERSE OSMOSIS

• Main Authors: LEE, BYOUNG JUN, KIM, KWAN YEOP, JIN, SANG JOON, KANG, SHIN GYUNG, MOON, JEONG KI
• Format: Patent
• Language: English; Korean
• Published: 01.07.2014
• Subjects: CHEMISTRY; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

A reverse osmosis seawater desalination system according to the present invention includes a pressurizing floating device that allows seawater to flow in and removes a floating material for primary pretreatment, a precision filtering device that removes fine particles of the primarily pretreated water for secondary pretreatment, a primary reverse osmosis module that turns the secondary pretreated water into freshwater and has different types of elements to maintain a permeate flow, a secondary reverse osmosis module that turns the treated water from the primary reverse osmosis module into freshwater for supply to a final treatment water tank; and a pressure exchange device that uses the pressure of condensate water discharged from the primary reverse osmosis module to raise the pressure of a part of secondary treated water supplied to the primary reverse osmosis module. Front-end permeate water of the treated water from the primary reverse osmosis module is bypassed to be transported to the final treatment water tank.