| 摘要 |
PROBLEM TO BE SOLVED: To provide a method to efficiently decompose and remove hydrogen peroxide from waste water. SOLUTION: When the waste water containing hydrogen peroxide or hydrogen peroxide and ammonia is passed through a decomposing tower for hydrogen peroxide to decompose hydrogen peroxide, an associating gas such as air, nitrogen gas, water vapor or the like is supplied from the lower part of the decomposition tower for hydrogen peroxide.
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