Abstract
An advanced oxidation process, UV/H2O2, was applied for decolorization of a di-azo dye (acid black 1). The effects of operating parameters such as hydrogen peroxide dosage, UV dosage and initial dye concentration, on decolorization have been evaluated. The acid black 1 solution was completely decolorized under optimal hydrogen peroxide dosage of 21.24 mmol/l and UV dosage of 1400 W/l in less than 1.2 min. The decolorization rate followed pseudo-first order kinetics with respect to the dye concentration. The rate increased linearly with volumetric UV dosage and nonlinearly with increasing initial hydrogen peroxide concentration. It has been found that the degradation rate increased until an optimum of hydrogen peroxide dosage, beyond which the reagent exerted an inhibitory effect. For real case application, an operation parameter plot of rate constant was developed. To evaluate the electric power and hydrogen peroxide consumption by UV/H2O2 reactor, 90% color removal was set as criteria to find the balance between both factors.
References
Aug 14, 2001·Journal of Biotechnology·R BrásI Cabral Gonçalves
Aug 22, 2001·Chemosphere·C M KaoB R Huang
Aug 3, 2002·Chemosphere·Rosario López CisnerosMarta I Litter
Jun 5, 2003·Chemosphere·A Mohey El-DeinU Wiesmann
Citations
Sep 23, 2010·Biodegradation·Jing-Long HanHui-Zhong Xu
May 12, 2005·Journal of Hazardous Materials·Hung-Yee Shu, Ming-Chin Chang
Apr 5, 2005·Toxicon : Official Journal of the International Society on Toxinology·Rui-Ping QiaoYuan-Yi Zhuang
Apr 11, 2015·Carbohydrate Polymers·Longyun HaoYajing Men
Nov 3, 2012·Journal of Environmental Management·Azam AleboyehHamid Aleboyeh
Oct 5, 2011·Journal of Hazardous Materials·Chiing-Chang ChenHuan-Jung Fan
Aug 12, 2008·Journal of Hazardous Materials·A AleboyehH Aleboyeh
Feb 22, 2005·Journal of Hazardous Materials·Hung-Yee ShuHuan-Jung Fan
Aug 30, 2005·Journal of Hazardous Materials·Hung-Yee ShuWen-Pin Hsieh
Jul 6, 2005·Journal of Hazardous Materials·Hung-Yee Shu, Ming-Chin Chang
Jun 29, 2005·Journal of Hazardous Materials·Hung-Yee Shu, Ming-Chin Chang
Jun 2, 2017·Chemosphere·Huilin YouYu Wang
Dec 11, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Zhiyong YangAkram Yasin
Aug 11, 2020·Heliyon·Md Shakhawat Hossen BhuiyanMd Ashaduzzaman
Nov 16, 2019·Journal of Photochemistry and Photobiology. B, Biology·Adeel AhmedHailin Cong