Method and apparatus for withdrawing effluent from a solids-cont

Liquid purification or separation – Processes – Including controlling process in response to a sensed condition

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Details

210 87, 210248, 210519, 210540, 210629, 210745, 210801, B01D 2124, B01D 2130

Patent

active

056956487

ABSTRACT:
A method and apparatus are disclosed which provide enhanced solids-contacting vessel performance in a vessel in which untreated liquid is injected into a lower portion of the vessel so as to flow in a substantially helical and upward direct to separate the solids from the liquid in a suspended, rotating sludge blanket. The vessel is equipped with an adjustable weir extending substantially radially form the vessel center to its peripheral wall for withdrawing effluent from the vessel from a variety of locations depending upon the flow velocity characteristics of the liquid in the vessel.

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