THE RECYCLING SYSTEM BY THE REVERSE OSMOSIS SYSTEM IN PURIFIED WATER GENERATION SYSTEM OF CONCENTRATES WASTEWATER

摘要

PURPOSE: Recycle system and method for concentrated water of a reverse osmosis system are provided to reduce the usage amount of water by recycling the concentrated water of the reverse osmosis system, and to prevent the increase of management costs for a water-treatment system by preventing the load on the water-treatment device. CONSTITUTION: A recycle method for concentrated water of a reverse osmosis system recycles the concentrated water of the reverse osmosis system by circulating the concentrated water to a raw water tank or a soft water tank. A collecting auto-valve and a discharging auto-valve for the concentrated water are installed on a concentrated water drain line of the reverse osmosis system. Purified water inside a purified water storage tank is circulated into the soft water tank when the purified water storage tank is full, the concentrated water inside the reverse osmosis system flows into the raw water tank or the soft water tank. The relay time is set on a control panel for determining the opening time of the collecting auto-valve for the concentrated water on the drain line of the reverse osmosis system. [Reference numerals] (AA) Operating a water treatment system; (B1) Producing purified water; (B2) Supplying to a storage tank; (CC) Is the storage tank full ?; (D1) Opening an automatic valve for returning to a soft water tank; (D2) Operating a timer as soon as opening the valve for returning to the soft water tank; (D3) Closing an automatic valve for a purified water storage tank; (D4) Supplying the purified water to the soft water tank; (EE) Collecting concentrated water in a raw water tank; (FF) Collecting concentrated water in the soft water tank; (GG) Does water pass through a purified water manufacturing system as much as the capacities of a pretreatment pipe and a vessel soft water tank; (HH) Does water pass through a purified water manufacturing system as much as the capacity of the soft water tank ?; (II) Operating a recycling system; (J1,J2) Opening the automatic valve of a concentrated water discharging line and draining RO concentrated water; (K1) Opening the automatic valve of the concentrated water discharging line; (K2) Closing a concentrated water draining line; (K3) Introducing RO concentrated water into the soft water tank or the raw water tank