Process for the purification of waste water

Claim 1

IN THE PROCESS FOR THE PURIFICATION OF WASTE WATER CONTAINING PREDOMINATLLY ORGANIC IMPURITIES INCLUDING THE STEPS OF CONVEYING THE WASTE WATER IN A FLUID PHASE TO A PREHEATER AND VAPORIZER OF THE PURIFICATION SYSTEM, MIXING THE WASTE WATER AND COMBUSTION AIR TO LOWER THE VAPOR PRESSURE OF THE WATER, PREHEATING THE MIXTURE OF AIR AND WATER AT A TEMPERATURE BELOW 100*C. WHEREBY A PORTION OF THE WASTE WATER AND OFITS VOLATILE CONSTITUENTS ARE VAPORIZED, CONVEYING THE VAPOR-AIR MIXTURE TO AN OVERHEATER, OVERHEATING THE VAPOR-AIR MIXTURE, MIXING THE OVERHEATED VAPOR-AIR MIXTURE WITH COMBUSTION FUEL, CONDUCTING THE VAPOR-AIR MIXTURE AND COMBUSTION FUEL TO A BURNER WHICH OPERATES WITH EXCESS OF AIR, OXIDIZING THE IMPURITIES OF THE MIXTURE BY THE BURNER AND FORMING HOT COMBUSTION GASES, SAID OXIDATION BEING CARRIED OUT UNDER ATMOSPHEREIC PRESSURE, PASSING SAID HOT COMBUSTION GASES INTO A REACTOR, CONVEYING THE REMAINING UNVAPORIZED WATER IN THE PREHEATER FROM THE PREHEATER TO THE REACTOR WHERE IT IS VAPORIZED AND OVERHEATED BY SAID HOT COMBUSTION GASES, CONDUCTING THE HOT EXHAUST GASES FORMED IN THE REACTOR TO THE OVERHEATER, UTILIZING THE HEAT FROM THE EXHAUST GASES TO HEAT VAPOR-AIR MIXTURE IN THE OVERHEATER, AND DISCHARGING THE PURIFIED WATER FROM THE SYSTEM.