METHOD FOR WASTEWATER PROCESSING PRODUCED AFTER NANOFILTRATION OF MILK WHEY

摘要

A method for wastewater processing produced after nanofiltration of milk whey provides concentration thereof by reversed osmosis. Wastewater are concentrated by high pressure reversed osmosis at pressure differential of 4.0-8.0 MPa to content of dry matter of 4.5-5.0%, produced concentrate is separated by electrodialysis at current density of 250-300 A/m, diluate produced after electrodialysis, is concentrated again with high pressure reversed osmosis to lactose content of 18-20%.