(civil engineering) A sewage treatment process in which the sludge in the secondary stage is put into aeration tanks to facilitate aerobic decomposition by microorganisms; the sludge and supernatant liquor are separated in a settling tank; the supernatant liquor or effluent is further treated by chlorination or oxidation.
activated-sludge process
| Sci-Tech Dictionary: activated-sludge process |
(′ak·tə′vād·əd ′sləj ′prä′səs)
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 | step aeration (civil engineering) |
| spiral flow tank (civil engineering) |
| Wastewater Treatment |
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Mentioned in
- step aeration (civil engineering)
- spiral flow tank (civil engineering)
- Wastewater Treatment
- Anaerobic digester types
