Method and arrangement for the purification of industrially contaminated waste water / process water by means of a distillation plant

摘要

Process for the purification of industrially contaminated waste water / process water by means of a distillation plant 1 with a vapor compressor 10 with the following process steps: A) Supplying the contaminated liquid into a container 100 with an evaporator / condenser unit 20 B) Evaporation of the liquid in the evaporator / condenser unit 20 by means of a vapor compressor 10 C) Separation of liquid droplets from the vapor stream at a mist eliminator 30 D) pumping and compressing the thus pre-cleaned vapor stream via the vapor compressor 10 via a recirculation line 5 b returning to the container 100 E) Degradation of the unwanted residual constituents contained in the vapor stream, in particular organic and / or reactive inorganic substances, by an additional treatment step in the vapor phase by means of oxidation, wherein no displacement (adsorption / filtering) of the residual constituents takes place in the vapor stream F) return of the vapor stream in the Evaporator / condenser unit 20 G) Separation of the water vapor freed from the undesirable residual components in the evaporator / condenser unit 20