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- [7] PURIFICATION OF WASTE-WATER IN PONDS WITH FOUNTAINS ZUCKERINDUSTRIE, 1980, 105 (11): : 986 - 991
- [8] ANAEROBE PURIFICATION OF WASTE-WATER BY SEDIMENTATION PAPERI JA PUU-PAPER AND TIMBER, 1984, 66 (12): : 729 - 730
- [10] EFFECT OF CHARCOAL ON PURIFICATION OF WASTE-WATER MOKUZAI GAKKAISHI, 1995, 41 (04): : 425 - 432