Apparatus for removing contaminants from water

Claim 1

Apparatus for treating water having disagreeable odor and an objectionable color comprising: a. a vertically disposed closed treatment tank, b. a pipe for feeding raw water to an intermediate portion of the tank from the outside, c. a power driven pump for forcing water through said feed pipe, d. a nozzle on the discharge end of said pipe for comminuting the water into a mist-like fog, e. an aerator submerged into the water in the lower portion of the tank and having a power driven rotatable disc provided with radial channels to expel air jetwise, f. a pipe to deliver atmospheric air to said aerator extending from the outside of the tank, g. an annular row of baffles surrounding said aerator in spaced relation comprising circumferentially spaced, V-shaped plates spaced above the bottom of the tank below said nozzle and with the apices of the V's disposed towards the center of the tank and with the opposite ends juxtaposed to the tank wall, thereby providing impingement surfaces for the air and water jets, and channels for passage of hydraulic streams created within the tank, h. an exhaust pipe for gases in the upper portion of said tank, i. a pipe for treated water extending from the lower portion of the tank to the outside, j. a power driven pump for withdrawing water from said last pipe, and k. float operation switch means for controlling said pump of paragraph c to maintain a predetermined water level in the tank, below said nozzle and above the lower portion of said baffles.