Method of treating waste water and apparatus for treating waste water using the method
AssigneesNEC Corporation, Nippon Shokubai Co., Ltd.
InventorsTsutomu Taira, Keiji Hirano, Junji Okamura, Mitsuaki Ikeda, Kunio Sano
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Abstract
The present invention provides a method of treating waste water including nitrogen-containing organic compounds to convert harmless gases without post-treatment. The method comprises steps of spraying the waste water in a heated space to gasify the waste water to waste gas, and oxidizing the waste gas by contacting with a catalyst to convert the nitrogen-containing organic compound into harmless gases. This application also discloses an apparatus for treating waste water using the method.
Claims13
A method of treating waste water, comprising:
- a first step of spraying waste water including a nitrogen-containing organic compound in a heated space to gasify substantially all amount of said waste water to waste gas;
- and
- a second step of oxidizing said waste gas by contacting with a catalyst to convert said nitrogen-containing organic compound into nitrogen gas, carbon dioxide and water vapor.
An apparatus for treating waste water, comprising:
- a means for gasifying waste water, which includes a sprayer for spraying waste water;
- a gasifying area in to which waste water is introduced, and in which said waste water is gasified by said gasifying means to produce a waste gas from said waste water;
- a reaction area which contains a catalyst for oxidizing said waste gas delivered from said gasifying area, and from which an oxidized gas is exhausted;
- and
- a line connecting said gasifying area to said reaction area.
Dependencies are inferred from the claim text.