Patent ID: 8333887

Claim:
A zero liquid discharge water purification system comprising: (a) a first fluid input line in fluid communication with a first supercapacitor desalination unit having a first fluid discharge line; (b) a second fluid input line in fluid communication with a second supercapacitor desalination unit having a second fluid discharge line; (c) the first fluid discharge line and second fluid discharge line alternately and mutually exclusively connectable to a common precipitation unit; (d) a product output line alternately and mutually exclusively connectable to either the first fluid discharge line or second fluid discharge line; and (e) a fluid return loop connected between the common precipitation unit and alternately and mutually exclusively to either the first fluid input line or second fluid input line; wherein the first and second supercapacitor desalination units alternately and mutually exclusively connected to either the product output line through the first fluid input line or second fluid input line, or the common precipitation unit through the first fluid discharge line and second fluid discharge line.