Intensification of Photochemical Wastewater Decolorization Process Using Microreactors

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Shinichi Ookawara²  Shiro Yoshikawa²  Yoshihisa Matsushita¹  Bruno Ramos² 

[1] Department of Energy Resources and Environmental Engineering, Egypt–Japan University of Science and Technology;Department of Chemical Engineering, Graduate School of Science and Engineering, Tokyo Institute of Technology

关键词: Microreactor;    Process Intensification;    Advanced Oxidation Process;    Photodecolorization;   

DOI  :  10.1252/jcej.13we025

来源: Maruzen Company Ltd

【 摘 要 】

References(14)Cited-By(5)The decolorization process of methylene blue (MB), as a model pollutant for dye wastewaters, has been investigated using an LED-irradiated glass microreactor. The main part of the microreactor is a semi-elliptic microchannel with the width, depth and length of 100 microns, 40 microns and 50 cm, respectively. For the purpose of comparisons and exploration of surface effects, glass and polystyrene cuvettes are employed as a model of a batch vessel. It is found that MB was decolorized by UV light and, further, that the photochemical decolorization process was intensified, in terms of reaction rate, by using the microreactor. Especially, at high pH conditions, the process intensification is found to be more prominent due to surface interactions, which are enhanced in the microreactor due to its high specific surface area.

【 授权许可】

Unknown