According to Eq . 1, this also is a basic factor that can control the sedimentation tank performance which called overflow rate.
12.
The total sludge production consists of the sum of primary sludge from the primary sedimentation tanks as well as waste activated sludge from the bioreactors.
13.
Solids from the bar screens went to a sludge pond, while coarsely filtered water went to a pre-sedimentation tank, which separated grease and additional solids.
14.
Conversion of the treatment process from chemical precipitation to septic tanks and sedimentation tanks began in December 1900, and was completed on 4 August 1904.
15.
In 1891, sedimentation tanks were added to the works, and the sludge was carried by steam boats and dumped further out into the estuary, at sea.
16.
Indeed, it wasn't until 2 : 30 a . m . on October 1 that JCO staff initiated a plan to bring the sedimentation tank under control.
17.
Imhoff tanks are being superseded in sewage treatment by plain sedimentation tanks using mechanical methods for continuously collecting the sludge, which is moved to separate digestion tanks.
18.
Sedimentation tanks called " secondary clarifiers " remove flocs of biological growth created in some methods of secondary treatment including activated sludge, trickling filters and rotating biological contactors.
19.
In addition, about 110 170 kg / ML of primary sludge is produced in the primary sedimentation tanks which most-but not all-of the activated sludge process configurations use.
20.
Sedimentation tanks are typically designed within a range of overflow rates of 0.5 to 1.0 gallons per minute per square foot ( or 1.25 to 2.5 meters per hour ).
