Water treatment method and water treatment apparatus
AssigneeOrgano Corporation
InventorsKeisuke Sasaki, Mayu Abe, Fumio Sudo, Hiroshi Yamada, Tsukasa Kondo
Life of this patent
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Abstract
A water treatment apparatus for removing dissolved oxygen contained in water to be treated includes: an anode; a cathode; and a dissolved oxygen removal chamber which is located between the anode and the cathode and filled with an ion exchanger. At least a portion of the ion exchanger filled in the dissolved oxygen removal chamber is an ion exchanger on which a metal catalyst is supported. The ion exchanger on which the metal catalyst is supported is filled in a single bed configuration in at least a portion of the dissolved oxygen removal chamber. A DC current is applied between the anode and the cathode.
Claims18
A water treatment method for removing at least dissolved oxygen contained in water to be treated, comprising:
- applying a DC current between an anode and a cathode;
- and
- passing the water to be treated through a dissolved oxygen removal chamber, which is located between the anode and the cathode and filled with an ion exchanger in a multilayered bed configuration,
- wherein at least a portion of the ion exchanger filled in the dissolved oxygen removal chamber is an anion exchanger on which a metal catalyst is supported, and
- wherein the anion exchanger on which the metal catalyst is supported is filled in a single bed configuration only in an upstream side of flow in the dissolved oxygen removal chamber.
A water treatment method for removing dissolved oxygen and hydrogen peroxide contained in water to be treated, comprising:
- applying a DC current between an anode provided in an anode chamber and a cathode provided in a cathode chamber which is filled with an ion exchanger;
- and
- passing the water to be treated through the cathode chamber,
- wherein the cathode chamber is defined by a first ion exchange membrane on a side thereof facing the anode chamber,
- wherein the anode chamber is defined by a second ion exchange membrane on a side thereof facing the cathode chamber,
- wherein at least a portion of the ion exchanger filled in the cathode chamber is an ion exchanger on which a metal catalyst is supported, and
- at least one of a concentration chamber and a deionization chamber is arranged between the anode chamber and the cathode chamber.
A water treatment apparatus for removing at least dissolved oxygen contained in water to be treated, comprising:
- an anode and a cathode;
- and
- a dissolved oxygen removal chamber which is located between the anode and the cathode and filled with an ion exchanger in a multilayered bed configuration, and through which the water to be treated passes,
- wherein at least a portion of the ion exchanger filled in the dissolved oxygen removal chamber is an anion exchanger on which a metal catalyst is supported,
- wherein the anion exchanger on which the metal catalyst is supported is filled in a single bed configuration only in an upstream side of flow in the dissolved oxygen removal chamber, and
- wherein a DC current is applied between the anode and the cathode.
A water treatment apparatus which removes dissolved oxygen and hydrogen peroxide contained in water to be treated, comprising:
- an anode chamber equipped with an anode;
- a cathode chamber equipped with a cathode, filled with ion exchanger, and supplied with the water to be treated;
- and
- at least one of a concentration chamber and a deionization chamber arranged between the anode chamber and the cathode chamber,
- wherein the cathode chamber is defined by a first ion exchange membrane on a side thereof facing the anode chamber,
- wherein the anode chamber is defined by a second ion exchange membrane on a side thereof facing the cathode chamber,
- wherein at least a portion of the ion exchanger filled in the cathode chamber is an ion exchanger on which a metal catalyst is supported, and
- wherein a DC current is applied between the anode and the cathode.
Dependencies are inferred from the claim text.