0 a large container in which dirty or waste water is stored until all the solid material in it falls to the bottom and the water can be released for further treatment --
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).
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.
This flocculating agent binds together the impurities, which sink and are removed in sedimentation tanks.
Most aqueduct systems included sedimentation tanks, sluices and distribution tanks to regulate the supply at need.
Sludge bulking occurs when the sludge fails to separate out in the sedimentation tanks.
Once these were operational in 1969, the old sedimentation tanks were converted to become temporary storm sewage tanks.
The third phase was split into two parts, which initially involved the building of new primary sedimentation tanks.
Early efforts to combat these problems included the use of sedimentation tanks, disinfection by silver ionization and cleaning of the distribution network.
