Degradation of trichloroethylene by photocatalysis in an internally circulating slurry bubble column reactor

被引：19

作者：

Jeon, JH

Kim, SD

Lim, TH

Lee, DH

机构：

[1] Korea Adv Inst Sci & Technol, Energy & Environm Res Ctr, Dept Chem & Biomol Engn, Taejon 305701, South Korea

[2] Korea Inst Energy Res, Adv Fuel Cell Res Ctr, Taejon 305343, South Korea

[3] Sungkyunkwan Univ, Dept Chem Engn, Suwon 440746, Kyunggi Do, South Korea

来源：

CHEMOSPHERE | 2005年 / 60卷 / 08期

关键词：

D O I：

10.1016/j.chemosphere.2004.12.058

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The effects of initial trichloroethylene (TCE) concentration, recirculating liquid flow rate and gas velocity on photodegradation of TCE have been determined in an internally circulating slurry bubble column reactor (0.15 m-ID x 0.85 m-high). Titanium dioxide (TiO2) powder was employed as a photocatalyst and the optimum loading of TiO2 in the present system is found to be approximately 0.2 wt%. The stripping fraction of TCE by air flow increases but photodegradation fraction of TCE decreases with increasing the initial TCE concentration, recirculating liquid flow rate and gas velocity. The average removal efficiency of TCE is found to be approximately 97% in an internally circulating slurry bubble column reactor. (C) 2005 Elsevier Ltd. All rights reserved.

引用

页码：1162 / 1168

页数：7

共 15 条

[1] MODELING OF LIGHT TRANSMITTANCE AND REFLECTANCE IN FLAT FLUIDIZED PHOTOREACTORS [J].