DESALINIZATION SYSTEM AND DESALINIZATION METHOD

摘要

This desalinization system (S), which obtains industrial-use water and drinking water from seawater and wastewater, is provided with the following: a purification device (1) that purifies wastewater by removing activated sludge therefrom; a first RO membrane (2) that removes salt from the output of the purification device (1) by transferring said salt to first concentrated water (s6), thereby producing industrial-use water (s1); a UF membrane (3) that seawater passes through and that removes particulates from said seawater; a second RO membrane (4) that removes salt from the treated output (s5b) of the UF membrane (3) by transferring said salt to second concentrated water (s7), thereby producing drinking water (s2); an agitation device (5) to which the second concentrated water (s7) from the second RO membrane (4) and the first concentrated water (s6) from the first RO membrane (2) are sent to be agitated; and a third RO membrane (6) that removes salt from the liquid mixture agitated by the agitation device (5) by transferring said salt to third concentrated water (s9), thereby producing industrial-use water (s3).