MEMBRANE FILTRATION PROCESS FOR INDUSTRIAL PROCESS WATER TREATMENT AND RECOVERY

摘要

Several methods for recovering industrial process water are provided. The first method is a method for recovering industrial process water comprising injecting CO2 (7) into industrial process water to produce a conditioned solution (9); and filtering the conditioned solution (9) through a membrane filtration unit (13), producing a retentate solution (17) and a permeate solution (15). Another method discloses filtering the industrial process water through a membrane filtration unit (13), creating a retentate solution (17) and a permeate solution (15), and then routing the retentate solution (17) to a precipitation tank (19), wherein supernatant water (25) and precipitated solids are formed.