共 50 条
- [1] USE OF DISSOLVED AIR FLOTATION FOR THICKENING OF WASTE ACTIVATED-SLUDGE EFFLUENT & WATER TREATMENT JOURNAL, 1975, 15 (05): : 243 - &
- [2] SLUDGE THICKENING BY DISSOLVED - AIR FLOTATION JOURNAL WATER POLLUTION CONTROL FEDERATION, 1967, 39 (06): : 946 - &
- [4] DISSOLVED AIR FLOTATION TACKLES SLUDGE THICKENING WATER & WASTES ENGINEERING, 1978, 15 (02): : 63 - &