Abstract: A wastewater purification and recycling apparatus is provided comprising means for introducing wastewater having a relatively high concentration of impurities from an industrial process into a boiler used to generate working steam for an industrial purpose, heating the wastewater in the boiler to produce a steam component and a precipitated impurity component, using the steam component for the industrial purpose, condensing the steam component as it is used for the industrial purpose to produce water and selectively recycling the water for use in the industrial process and/or boiler while periodically removing the accumulated impurity component from the boiler.