The photooxidative destruction of C.I. Basic Yellow 2 using UV/S2O8(2-) process in a rectangular continuous photoreactor.

Journal of Hazardous Materials
Darioush SalariM H Rasoulifard

Abstract

The photooxidative decolorization of C.I. Basic Yellow 2 (BY2), was investigated using UV radiation in the presence of peroxydisulfate (S(2)O(8)(2-)) in a rectangular photoreactor at experimental condition. S(2)O(8)(2-) and UV-light showed negligible effect when they were used independently. Removal efficiency of BY2 was sensitive to the operational parameters such as initial concentrations of S(2)O(8)(2-), BY2, light intensity, flow rate and pH. The conversion ratios of BY2 at the volumetric flow rates of 330, 500 and 650 ml/min were 84%, 79%, 51% in 30 min, respectively. Our results showed that light intensity was a beneficial parameter for dye removal. The results showed that in the presence of S(2)O(8)(2-), the photooxidation quantum yield obtained was higher than direct photolysis quantum yield, suggesting that photodecay of BY2 was dominated by photooxidation. The electrical energy per order (E(EO)) values for decolorization of BY2 solution was calculated. Results show that applying a desired peroxydisulfate concentration can reduce the E(EO).

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Citations

Feb 14, 2014·Journal of Environmental Sciences (China)·Xiaowei LiuYu Shao
Oct 11, 2015·Environmental Science and Pollution Research International·Lingjun BuNaiyun Gao
Dec 1, 2012·Journal of Hazardous Materials·Shengnan SuZhenmin Ma
Jan 12, 2011·Chemosphere·Ya-Ting LinJiun-Hua Chen
Jul 19, 2015·Ultrasonics Sonochemistry·Alireza KhataeeSang Woo Joo
Jan 9, 2015·Environmental Science and Pollution Research International·Yu-Qiong GaoYan-Sen Zhang
Dec 15, 2010·Journal of Hazardous Materials·Shiying YangLeilei Wang
Aug 18, 2016·Environmental Technology·Moeen GholamiMohammad Bagherian Marzouni
Mar 23, 2017·Environmental Science and Pollution Research International·Lei ZhouYusuo Lin
Nov 3, 2020·International Journal of Environmental Science and Technology : IJEST·E Adar
Oct 28, 2020·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Jinpeng WangJianping Zeng

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