APPARATUS AND METHOD FOR PRODUCING POTABLE WATER

摘要

An apparatus according to the present invention includes a pump for pressurizing tap water, a reverse osmosis membrane for separating the pressurized tap water into waste water containing contaminant and filtered water and a tank for storing filtered water. Waste water is disposed through a first flow channel and a second flow channel mounted in parallel. The apparatus according to the present invention further includes a flow rate control unit having a flow rate control valve provided in the first flow channel to control flow rate of waste water flowing through the flow channel, a flow channel open/close valve provided in the second flow channel for opening/closing thereof, and a control device for controlling opening/closing the flow channel open/close valve.

主权项

1. An apparatus for producing potable water which contaminant in tap water to be processed is removed with a reverse osmosis membrane, sustainable anti-bacterial property is provided and minerals are added thereto, the apparatus comprising:
a pump for pressurizing tap water; a reverse osmosis membrane for separating the pressurized tap water into waste water containing contaminant and filtered water; a first flow channel and a second flow channel mounted in parallel and the waste water flows through; a flow rate control unit having a flow rate control valve provided in the first channel for controlling flow rate of waste water flowing through the first flow channel, a flow channel open/close valve provided in the second channel for opening/closing the second flow channel, and a control device for controlling opening/closing of the flow channel open/close valve; and a tank for storing the filtered water, wherein, when producing potable water, the flow channel open/close valve is closed and the flow rate at the flow rate control valve is controlled to maintain the flow rate of the filtered water, and when cleaning the reverse osmosis membrane, the control device operates to open the flow channel open/close valve while maintaining the pressure of the tap water to peel contaminant deposited on a surface of the reverse osmosis membrane.