Patent ID: 6315887
Filing Date: 2001-11-13
Classification: C02F

Abstract:
A device for the purification of polluted water by oxidation in situ of organic contaminants contained therein, said device comprising:(a) at least one reactor, said reactor comprising in combination:a vessel;at least one inlet means for introducing a flow of said water to be purified in the vessel;at least one outlet means for recovering the treated water from the vessel;duct means for introducing an ozone-containing gas inside the vessel; andelectrochemical means for promoting conversion, inside the reactor, of at least one catalyst precursor into a catalyst of oxidation reaction, said electrochemical means comprising at least one pair of electrodes including a cathode and an anode;(b) a supply of ozone-containing gas connected to the duct means;(c) a power supply connected to the electrodes for generating therebetween an over potential so as to produce oxygen at the anode and hydrogen at the cathode and thus to promote oxidation of the organic contaminants into CO.sub.2 in addition to promoting said conversion of said at least one catalyst precursor;(d) means for allowing any gas overpressure to exit the vessel;(e) turbulence means for redirecting and temporary retaining the flow of water to be purified within the vessel in order to increase the pathway of the polluted water in the reactor and thus the duration and efficiency of the purification; and(f) means for removing oxidation products from water after treatment within the vessel.