Kinetic studies on photocatalytic degradation of industrial dyeing wastewater

被引：0
|
作者：
Zheng Zhong [1 ]
Yang Zhuhong [1 ]
Feng Xin [1 ]
Lu Xiaohua [1 ]
He Pinjing [1 ]
机构：
[1] Tongji Univ, Sch Environm Sci & Technol, Shanghai 200092, Peoples R China
来源：
Proceedings of the China Association for Science and Technology, Vol 2, No 1 | 2006年
关键词：
photocatalysis; dyeing wastewater; kinetic; TiO2; fiber;
D O I：
暂无
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Dyeing wastewater was difficult to be treated, which had high CODCr low BOD5/CODCr ratio and was rich in various toxic substances. In this study, industrial dyeing wastewater was mineralized by photocatalytic process in the presence of three kinds of TiO2 photocatalyst with different modalities. The degradation rate of dyeing wastewater with TiO2 fiber as photocatalyst was near to with nanocrystalline P25 but prominent faster than with granular TiO2. The rate constants of the Langmuir-Hinshelwood model with three photocatalysts were in the order: P25 > TiO2 fiber > granular TiO2. After photodegradation, some phenylic compound found in original dyeing wastewater before photocatalytic process had been removed.
引用
收藏
页码：674 / 678
页数：5
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