A water hydration system for disposing of the water content of production fluid generated by a hydrocarbon well. The production water is processed to remove particulate matter, and then to separate the water from crude oil. The water is heated and pressurized and passed through a nozzle to produce a spray which flashes into steam in a duct carrying fresh air. The water vapor hydrates the air that is forced through the duct by a high capacity fan which blows the hydrated air into the atmosphere.