Method and device for processing object

A processing apparatus for decomposing an organic substance in an object, comprising:

• a first portion that is a portion having a first recess and configured to process the object;
• catalysts formed of granules made of a metal oxide containing titanium, which are maintained in a state of being accommodated in the first recess;
• a supply unit connected to the first portion and configured to supply gas containing oxygen into the first recess;
• a heating unit configured to heat at least any one of the catalysts or the gas;
• a container configured to accommodate the object and having a shape that enables the catalysts to pass therethrough;
• and
• a support unit configured to support the container,
• wherein the container is enabled to be displaced along a vertical direction so as to selectively take a state in which at least a part of the container is in contact with the catalysts in the first recess and a state in which the container is prevented from being in contact with the catalysts, and
• wherein the processing apparatus is prevented from comprising a stirring unit configured to stir the catalysts for all the catalysts accommodated in the first recess.