Method and apparatus for withdrawing effluent from a solids-cont

Details Method and apparatus for withdrawing effluent from a solids-cont Method and apparatus for withdrawing effluent from a solids-cont

1997-12-08

1999-09-28

Drodge, Joseph W.

Liquid purification or separation

Processes

Including controlling process in response to a sensed condition

210 87, 2105121, 210521, 210745, 210801, B01D 2130, B01D 2128, B01D 2132

Patent

active

059582499

ABSTRACT:
A method and apparatus are disclosed which provide enhanced solids-contacting vessel performance in which untreated liquid is injected into a lower portion of the vessel so as to flow in substantially helical and upward directions, solids separating from the untreated liquid into a suspended and rotating sludge blanket. The apparatus includes devices for withdrawing effluent from the vessel from a variety of locations depending upon the flow characteristics of the liquid in the vessel. The apparatus may include a radial weir trough that can be moved vertically within the vessel.

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