Patent ID: 7044308

Claim:
An apparatus for the removal of suspended solids and entrained oil from an aqueous solution comprising: a vessel having a top, bottom, side walls and end walls, with a flow inlet aperture at an upstream end and a flow outlet aperture at a downstream end; a first baffle extending downwardly from the top of the vessel downstream of the inlet and a second baffle extending upwardly from the bottom of the vessel downstream of the first baffle; a first hopper in the bottom of the vessel upstream of the second baffle and a second hopper in the bottom of the vessel downstream of the second baffle; a removable coalescing media pack downstream of the second hopper; a plurality of angled plates downstream of the coalescing media pack; a third baffle extending downwardly from a position proximate to but not in contact with the top of the vessel downstream of the angled plates; a fourth baffle extending upwardly from the bottom of the vessel downstream of the third baffle; a third hopper in the bottom of the vessel upstream of the fourth baffle and a fourth hopper in the bottom of the vessel downstream of the fourth baffle; a fifth baffle extending downwardly from the top of the vessel between the fourth baffle and the outlet; and an oil collection chamber in said top of the vessel between the third and fifth baffles.