Liquid purification or separation – With means to add treating material – Directly applied to separator
Patent
1993-01-21
1994-05-31
Drodge, Joseph W.
Liquid purification or separation
With means to add treating material
Directly applied to separator
210121, 2102422, 261120, B01D 2128
Patent
active
053166710
ABSTRACT:
Disclosed is an aeration system for use in a liquid filled basin such as a wastewater treatment process and is particularly effective in a fill and draw system which requires a cyclic operation and includes air diffusion, liquid separation and decanting. The aeration system comprises an aerator which is supported by an air-filled bladder which, when inflated, raises the aerator to a position above the basin floor but when deflated allows the aerator to settle and rest on the bottom of the basin floor during the air/off settling phase and the weight of the aerator pulls the bladder and its hose supply line beneath the liquid surface of the basin thus clearing the top liquid surface. The system may take the form of a train which is affixed traversely across the basin consisting of multiple bladders and aerators which, due to the normal eddies and turbulence created by the aeration process, wander in a random pattern thus providing additional mixing other than aeration.
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