| 摘要 |
PROBLEM TO BE SOLVED: To provide catalytic activated carbon for quickly decomposing hydrogen peroxide in liquid waste under a severe condition without increasing the COD of the liquid waste, for solving such a problem that a large quantity of hydrogen peroxide is used when a semiconductor is cleaned, a woven fabric is bleached or food, a hot spring pool or the like is sterilized and catalase is used for decomposing unreacted hydrogen peroxide remaining the liquid waste but it is not undesirable that the catalase-used liquid waste is discharged as waste water since the COD of the catalase-used liquid waste is increased. SOLUTION: The catalytic activated carbon for decomposing hydrogen peroxide in liquid waste under the severe condition without increasing the COD of the liquid waste is obtained only by carbonizing an acrylonitrile copolymer at 250-500°C, activating the obtained carbonized material by steam at 800-1,200°C and giving colloidal platinum to the obtained activated carbon. COPYRIGHT: (C)2009,JPO&INPIT
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