A method for the treatment of industry waste water contains end organic pollutants

摘要

The invention relates to a method for the treatment of industrial effluent containing organic pollutants. The effluent is treated by ozonation in the presence of a catalyst made from a powder the particles of which comprise a catalytically-active phase of ruthenium and/or iridium on a support made from cerium, zirconium or titanium oxide or mixtures thereof, whereby the particle size of the powder is between 20 and 500 µm. The effluent for treatment and the ozone are introduced in a continuous manner into a reactor containing the catalyst maintained in suspension. The effluent treated with the ozone and the catalyst are continuously fed through a separation system to separate the catalyst, a part of the effluent is removed free of catalyst and the remainder is recycled with the catalyst into the reactor.