Process for regeneration of photoactivated catalysts used for treatment of liquid or gaseous effluents

摘要

A regeneration process of photo-activated catalysts used in the decontamination, disinfection or treatment of liquid and/or gaseous effluents, in the chemical synthesis and in the treatment, covering or protection of materials, which process comprises the following phases:
- preparation of a regeneration mixture as a function of pH of the the ordinary catalyst operative conditions;
- contactof the regeneration solution with the polluted catalyst;
- irradiation of the catalyst with the appropriate wavelength for the catalyst activation, while keeping it in contact with the solution;
- recovery/treatment of the regeneration mixture;
- drainage or recycle of the regeneration mixture.