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Aerobic Lagoons | Activated Sludge Process | Wastewater Treatment Plant
Aerobic Lagoons Aerobic lagoons are operated with an aeration system installed in the basin to maintain a high dissolved oxygen concentration throughout the …
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Step Aeration| Activated Sludge Process | Wastewater Treatment Plant
Tapered Aeration and Step Feed (Occasionally Described as Step Aeration) In a conventional activated sludge system, the wastewater is aerated in a circular …
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ALGAE | Activated Sludge Process | Wastewater Treatment Plant
ALGAE Algae are photosynthetic plants that are microscopic and lack roots, stems, and leaves. They are mostly autotrophic, and as a byproduct of synthesis, the…
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Rotating Biological Contactors | Activated Sludge Process | Wastewater Treatment Plant
Rotating Biological Contactors A previously common fixed film reactor that seems to be losing favor of late is the rotating biological contactor, or rotating b…
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Sludge Age | Activated Sludge Process | Wastewater Treatment Plant
Sludge Age The F/M ratio is related to sludge age, or mean cell residence time. The concept here is that the wastewater goes through the aeration process only …
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F/M Ratio | Activated Sludge Process | Wastewater Treatment Plant
F/M Ratio The F/M ratio is the ratio of the pounds of BOD5 applied to the reactor per day per pound of suspended solids (the microbial mass) in the aeration ba…
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Sludge Bulking | Activated Sludge Process | Wastewater Treatment Plant
Sludge Bulking Sludge bulking is a condition in which activated sludge is poorly settled and incompatible with the environment. The sludge blanket in the sec…
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Gravity Belt Filter Thickeners | Activated Sludge Process | Wastewater Treatment Plant
Gravity Belt Filter Thickeners A gravity belt filter thickener works on the same principle as a gravity belt filter press, but there is no pressing action.…
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Gravity Thickeners | Activated Sludge Process | Wastewater Treatment Plant
Gravity Thickeners Gravity thickening of wastewater sludges separates solids from the sludges that are being treated. Solids which are heavier than water ar…
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Aeration Tank | Activated Sludge Process | Wastewater Treatment Plant
Aeration Tank Operational Control Parameters An operator can optimize the biological treatment process by monitoring the operational contr...
