Patent ID: 7083707

Claim:
A decomposition apparatus comprising: a supply device for supplying a gaseous decomposition target into the decomposition apparatus; a contact section having an internal space to allow the decomposition target to come into contact with and be taken into a liquid; a flow path to conduct along with the liquid the decomposition target taken into the liquid to a position different from the internal space; a decomposition device positioned in the flow path in a state cut off from the outside air to decompose the decomposition target that has been conducted through the flow path; a device to introduce to the contact section the liquid that contains products produced from the decomposition of the decomposition target by the decomposition device; a circulating pump for circulating the liquid in a path formed by at least the contact section and the flow path; and a sensor for measuring a concentration of the decomposition target not decomposed in the liquid and the decomposition target supplied from the supply device, wherein the decomposition device includes electrodes that come into contact with and electrolyze the decomposition target that flows through the flow path, and a rectifier for adjusting an amount of electric current flowing into the electrodes based on a measurement taken by the sensor, and wherein surfaces of the electrodes are positioned within the decomposition device at an angle different from a flow direction of the liquid in the flow path.