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Xu, Airong
- Kinetics Study of Fenton Degradation of Acid Yellow G by Online Spectrometry Technology
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Affiliations
1 Chemical Engineering and Pharmaceutics School, Henan University of Science and Technology, Luoyang 471023, CN
2 College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, CN
1 Chemical Engineering and Pharmaceutics School, Henan University of Science and Technology, Luoyang 471023, CN
2 College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, CN
Source
Nature Environment and Pollution Technology, Vol 15, No 3 (2016), Pagination: 991-996Abstract
The kinetics of Fenton degradation of azo dye Acid Yellow G by online spectrometry technology was studied in this research. The main influential parameters of Fenton process such as FeSO4 dosage, H2O2 dosage, reaction temperature and pH were investigated and the optimum conditions were 20mg/L FeSO4, 50mg/L H2O2, pH=3 and 38°C. Degradation kinetics analyses of acid yellow G were carried out for superior interpretation of Fenton process and the result indicated that the Behnajady-Modirshahla-Ghanbery (B-M-G) model is more applicable than the first or second order kinetics.Keywords
Fenton Process, Acid Yellow G, Degradation, Online Spectrometry, BMG Model.Full Text
References
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- Xu, H. Yu, T., Wang, J. and Li, M. 2015. Effect of H2O2/Fe2+ concentration ratios on fenton oxidation of reactive red 6B with on-line detective technology. Nature Environment and Pollution Technology, 14(1): 71-76.
- Xu, H., Zhang, D. and Xu, W. 2008. Monitoring of decolorization kinetics of Reactive Brilliant Blue X-BR by online spectrophotometric method in Fenton oxidation process. Journal of Hazardous Materials, 158(3): 445-453.
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- Online Spectrometric Decolorization of Rhodamine B and Acid Yellow G by Homogeneous Cobalt-Activated Peroxymonosulphate Reaction
Abstract Views :258 |
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Authors
Affiliations
1 Chemical Engineering and Pharmaceutics School, Henan University of Science and Technology, Luoyang 471023, CN
1 Chemical Engineering and Pharmaceutics School, Henan University of Science and Technology, Luoyang 471023, CN
Source
Nature Environment and Pollution Technology, Vol 17, No 1 (2018), Pagination: 93-98Abstract
Homogeneous cobalt-activated peroxymonosulphate reaction (Co2+/PMS) was applied to decolorize Rhodamine B (RhB) and Acid Yellow G (AYG) and the main experimental parameters (nitrate cobalt concentration, PMS dosage, pH) were investigated. At the optical condition (1 mg/L Co(NO3)2, 20 mg/L PMS and pH=7 for RhB; 10 mg/L Co(NO3)2, 65 mg/L PMS and pH=9 for AYG ), the colour removal of RhB and AYG were 99.5% and 98% respectively. Plus, Mn+/PMS process (Cu2+/PMS, Mn2+/PMS, Ni2+/PMS, Fe3+/PMS, Fe2+/PMS) was carried out to study the catalytic effect of similar activators with same molar concentration. The evidence indicates that Fe2+ and Cu2+ ion are more reactive compared to other ions, while that catalysis is still incomparable to cobalt ion. Furthermore, in Co2+/PMS process, the acid dyes (Acid Red 6B, Acid Yellow G, Acid Blue) were found to become more degradable at alkaline condition (pH 9) than neutral solution.Keywords
Homogeneous Co2+/PMS, Decolorization, Rhodamine B, Acid Yellow G.Full Text
References
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