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首页> 外文会议>International Conference on Material Sciences and Technology >COD Removal of Textile Printing and Dyeing Wastewater by Photocatalysis
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COD Removal of Textile Printing and Dyeing Wastewater by Photocatalysis

机译：通过光催化去除纺织印染纺织印染废水

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Degradation of printing and dyeing wastewater after aerobic biochemical treatment by photocatalysis is studied by using a rotating photoreactor and TiO_2 photocatalyst of Degussa P25. Effects of irradiation time and pH value on removing efficiency are investigated. The results show that the COD down to about 80 mg/L can be achieved at the irradiation time of about 4-5 hours at mild pH values. At the pH value from 1.5 to 3.2, the COD down to about 80 mg/L can be achieved at the irradiation time less than 1 hour, and the COD down to about 20 mg/L could be achieved at the irradiation time of about 4 hours at a pH value of about 3.2.
机译：通过使用Degussa P25的旋转光反应器和TiO_2光催化剂研究了光催化在通过光催化处理过的印刷和染色废水。研究了辐射时间和pH值对去除效率的影响。结果表明，在轻度pH值下的照射时间约4-5小时的辐照时间可以在约80mg / L上实现COD。在1.5至3.2的pH值下，在照射时间下达到约80mg / L的COD可以在不到1小时的情况下实现，并且可以在约4的照射时间处实现核桃下降至约20mg / L. pH值为约3.2的小时数。

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