COLOUR REMOVAL FROM PAPER AND PULP MILL AQUEOUS EFFLUENTS

摘要

1523577 Ultrafiltration CHAMPION INTERNATIONAL CORP 14 March 1977 [15 March 1976] 10630/77 Heading B1X Colour is removed from paper or pulp mill effluent by ultrafiltration through a membrane consisting of polysulphone coated with polyethylenimine, the pH of the effluent being 9-14 and the temperature 100-180‹F (normal effluent conditions).