Process and cyclone reactor for fire decontamination of industrial waste water containing organic and refractory mineral impurities

摘要

A process for fire decontamination of industrial waste water containing organic and refractory mineral impurities, wherein into a reactor, in which there is maintained a temperature corresponding to the burning out temperature of organic impurities, there is fed a waste water containing organic impurities and fusible mineral impurities, in a sprayed state, so that during the burning out of organic impurities a film of melt of the fusible minerals impurities is formed on the reactor walls which flows therealong. Waste water containing organic and refractory mineral impurities is fed into this reactor in such a manner that during the burning out of organic impurities, the refractory mineral impurities penetrate in said film of melt of the fusible mineral impurities and discharged from the reactor along with this film. The cyclone reactor for conduction of this process is provided, in the top portion of its vertical cylindrical chamber, with burner apparatus arranged tangentially to the chamber to create a whirling flow of combustion products, and injection nozzles for feeding the waste water arranged below the burner apparatus in at least two transverse planes. The injection nozzles in the upper plane of the chamber are radially directed and adapted for feeding the waste water containing organic and fusible mineral impurities, and the injection nozzles in the lower plane of the chamber being adapted for feeding waste water containing organic and refractory mineral impurities and directed at an angle with respect to the chamber walls, this angle ensuring the introduction of the waste water into the whirling flow of combustion products.