Patent ID: 6730215
Filing Date: 2004-05-04
Classification: C02F

Abstract:
A wet-oxidation treatment apparatus for treating waste water, comprising:a packed bed of a solid catalyst and/or a solid adsorbent provided in the apparatus; a liquid inlet provided in the apparatus below the packed bed and connected to a source of the waste water; a liquid outlet which is provided in the apparatus above the packed bed and through which treated waste water is discharged from the apparatus; and a water-permeable pressure layer provided on an upper surface of the packed bed and having a load enough to suppress a movement of the solid catalyst and/or the solid adsorbent, the water-permeable pressure layer being deformable according to a deformation of the upper surface of the packed bed, wherein the water-permeable pressure layer is a substance having a plurality of rigid particles selected from the group consisting of stainless steel, titania and zirconia.