Patent ID: 8945357
Filing Date: 2015-02-03
Classification: C02F

Abstract:
1. 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.