Wastewater treatment apparatus
AssigneeBoydel Wastewater Technologies Inc.
InventorsRandall J. Boyle, Randall C. Deluca
Life of this patent
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Abstract
An apparatus (20) for treating contaminated water has an electrocoagulation reactor (26) and a clarifier (30) to receive the effluent of the reactor. The reactor has a reaction vessel (48) having an inlet (58) and an outlet (62), a sacrificial anode (64), a rotatable cathode (68) and a non-sacrificial anode (66). A first gap (70) between the sacrificial anode and the cathode comprises a first water treatment zone. A second gap (74) between the cathode and the non-sacrificial anode comprises the second water treatment zone. The water flow path is from the inlet to the first treatment zone, then to the second treatment zone and then to the outlet. In the clarifier, the reactor effluent is separated into cleaned water and the contaminated sludge.
Claims49
An apparatus for treating contaminated water comprising:
- (a) an electrocoagulation reactor comprising:
- (i) a reaction vessel having an inlet for inflow of water and an outlet for outflow of water from the reaction vessel;
- (ii) a sacrificial anode;
- (iii) a rotatable cathode;
- (iv) a non-sacrificial anode;
- (v) a first gap between the sacrificial anode and the cathode, the first gap comprising a first treatment zone downstream of the inlet, the sacrificial anode and the cathode being adapted to apply a first voltage across the first gap;
- (vi) a second gap between the non-sacrificial anode and the cathode, the second gap comprising a second treatment zone downstream of the first treatment zone, the non-sacrificial anode and the cathode being adapted to apply a second voltage across the second gap, whereby a flow path of water through the reaction vessel is from the inlet to the first treatment zone, then to the second treatment zone and then to the outlet.
Dependencies are inferred from the claim text.