A method for the improvement of the function of behaviour of a membrane in the direction of a nanofiltration

摘要

Ra esente invention relates to a proc ed e for am im prove the operation of a membrane of a device of the nanofiltration pr evu for filtering a solution. Before the n early of use of the membrane, is caused to circulate the perm eat and the r retentate through the nanofiltration membrane for a hard ee of determined ee.application to the processing of photographic baths.