Method and apparatus for treating organic matter-containing water

An apparatus for treating organic-matter-containing water, comprising:

• a plurality of reaction containers each containing a platinum-group metal catalyst having hydrogen adsorbed thereon;
• a water-supplying pipe configured to supply water containing organic matter and dissolved oxygen to the reaction containers so that the water contacts with the platinum-group metal catalyst;
• a hydrogen-supplying pipe configured to supply the hydrogen to the reaction containers;
• a switch configured to switch between supply of the water to the reaction containers from the water-supplying pipe and supply of the hydrogen to the reaction containers from the hydrogen-supplying pipe, and shut off the supply of the water to the plurality of reaction containers,
• wherein the switch switches sequentially between the reaction container in which adsorbing of the hydrogen on the platinum-group metal catalyst is carried out by the supply of the hydrogen, and another reaction container other than the reaction container in which the adsorbing of the hydrogen is carried out after the supply of the hydrogen to the reaction container, said water containing organic matter being supplied to the reaction container and another reaction container alternately.