Freeman, Scott D. N. et al., "Comparison of Two Thin-Film Composite Membranes: Low Pressure FT-30 to Very Low Pressure NF40HF", Desalination 62 (1987) pp. 183-191. |
Chemical Abstracts, vol. 103, No. 12, Sep. 23, 1985, Columbus, Ohio, U.S.A., p. 365, abstract No. 93439h; K. Koyama et al.: "Separation of inorganic ions by charged reverse osmosis membranes"; & Maku 1984, 9(5), 281-4 (Japan). |
Journal Water Pollution Control Federation, vol. 51, No. 1, Jan. 1979, pp. 176-186; D. Bhattacharyya et al.: "Charged membrane ultrafiltration of heavy metals from nonferrous metal" p. 179, lines 9-18. |
Journal of Chemical Engineering of Japan, vol. 15, No. 5, 1983, Tokyo, pp. 394-399; I. Jitsuhara et al.: "Rejection of inorganic salts by charged ultrafiltration membranes made of sulfonated polyfulfone". |
CZ-Chemie-Technik, 2. Jahrgang (1973), No. 6, Heidelberg, pp. 245-253; K. Marquardt: "Umgekehrte Osmose und Ultrafiltration -Amwendungsmoeglichkeiten und Beschraenkungen des Verfahrens sowie der gegenwaertige Trend im Anlagenbau" p. 249, table 1, lines 32-36. |