- DESALINATION SYSTEM USING CONTROLLED FORWARD OSMOSIS AND REVERSE OSMOSIS

摘要

The present invention relates to a desalination system using control-osmosis and reverse osmosis, and more particularly to a seawater supply line for supplying seawater inflow water. A reuse inflow water supply line for supplying reuse inflow water; A control-osmosis membrane module in which the seawater supply line is connected to the active layer of the membrane module and the reusable influent supply line is connected to a support layer of the membrane module; A seawater inflow water change line connected to the seawater inflow water guide valve provided in the seawater supply line and connecting the seawater supply line to the support layer of the control-osmosis membrane module; A reuse inflow water change line connected to the reuse inflow water guide valve provided in the reuse inflow water supply line and connecting the reuse inflow water supply line to the active layer of the control and osmosis membrane module; A pump disposed on a line side connected to the active layer of the control-osmosis membrane module; A pressurized reverse osmosis module that receives the diluted seawater discharged from the control-osmosis membrane module and discharges fresh water and concentrated seawater; An energy recovery device that reduces the pressure applied to the seawater concentrated water to recover energy; And a device capable of measuring TDS (Total Dissolved Solid) and SDI (Sludge Density Index), and a control method using the osmosis and reverse osmosis, and a desalination method using osmosis and reverse osmosis will be.