초록 ▼

A water desalination and softening system that can be used in a home or commercial environment which recirculates water past a membrane filter element in a manner to self clean the membrane and to prevent a buildup of salts and minerals on the membrane surface. The system conserves water so as to re

A water desalination and softening system that can be used in a home or commercial environment which recirculates water past a membrane filter element in a manner to self clean the membrane and to prevent a buildup of salts and minerals on the membrane surface. The system conserves water so as to result in near zero waste by recirculating water from a reservoir tank past the membrane. The system can operate in conjunction with a building's water supply and can operate without problems in either a zero or low effluent mode or when water usage is frequent.

대표청구항 ▼

[ What is claimed is:] [10.] A method of desalinating water comprising the steps of:flowing municipal water under pressure into a first compartment of a rigid tank having a second product water compartment separated from the first compartment by a flexible bladder;flowing water from said first compa

[ What is claimed is:] [10.] A method of desalinating water comprising the steps of:flowing municipal water under pressure into a first compartment of a rigid tank having a second product water compartment separated from the first compartment by a flexible bladder;flowing water from said first compartment into a first chamber of a water treatment unit divided into first and second chambers by a water permeable element that rejects and/or absorbs salts and minerals from the water to form waste water in the first chamber and desalinated product water in the second chamber;flowing the product water from the second chamber into the second compartment, flowing waste water into the first compartment;connecting the first compartment to a utilization appliance by means of a utilization line;connecting the second compartment to a second utilization line;periodically flowing supply water under pressure into the first compartment to mix with and dilute said waste water its inlets and its outlets being constructed and arranged such that in response to water being periodically removed from the first compartment, municipal said water is caused to enter the first compartment and mix with dilute waste water to form utilization water which enters said utilization line and said municipal water pressurizes the product water in said second compartment and periodically using the product water in the second utilization line.