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- [1] TANNERY WASTEWATER-TREATMENT BY THE OXYGEN ACTIVATED-SLUDGE PROCESS JOURNAL WATER POLLUTION CONTROL FEDERATION, 1980, 52 (05): : 999 - 1007
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- [8] OPERATING EXPERIENCES AT A LARGE CONTINUOUSLY FED, INTERMITTENTLY DECANTED, ACTIVATED-SLUDGE PLANT JOURNAL WATER POLLUTION CONTROL FEDERATION, 1988, 60 (02): : 199 - 205
- [9] UPGRADING A COMPLEX MIX ACTIVATED-SLUDGE WASTEWATER-TREATMENT PLANT JOURNAL WATER POLLUTION CONTROL FEDERATION, 1976, 48 (12): : 2653 - 2668