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Decolorization and mineralization of Oolong tea polyphenols in colored soft drink wastewater by photo Fenton reaction.
Water Sci Technol. 2011; 63(9):1894-8.WS

Abstract

The decolorization and the mineralization of the colored soft drink wastewater including Oolong tea polyphenols by the photo Fenton reaction have been investigated. The decolorization of the colored soft drink wastewater including Oolong tea polyphenols by the photo Fenton reaction could be divided into 3 phases. Just after H2O2 was added to the solution, the color of the solution immediately increased from absorbance of 0.247 to 0.711 at the wavelength of 400 nm, which was defined as the 1st phase. Subsequently the significant decolorization by the photo Fenton reaction occurred at the 2nd phase. Finally, complete decolorization (the color attributed to the color of Fe3+) could be achieved in 180 min at the 3rd phase. The instantaneous and considerable color increase at the 1st phase could be attributed to the formation of intermediate colored compounds like quinones and soluble iron complexes produced by the Fenton reaction. About 95% mineralization of model colored soft drink wastewater with 229 mg L(-1) initial TOC concentration was achieved after 165 min.

Authors+Show Affiliations

Department of Applied Chemistry, Toyo University, Kawagoe, Saitama 350-8585, Japan. dc0700013@toyonet.toyo.ac.jpNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

21902028

Citation

Tokumura, M, et al. "Decolorization and Mineralization of Oolong Tea Polyphenols in Colored Soft Drink Wastewater By Photo Fenton Reaction." Water Science and Technology : a Journal of the International Association On Water Pollution Research, vol. 63, no. 9, 2011, pp. 1894-8.
Tokumura M, Sekine M, Morito Y, et al. Decolorization and mineralization of Oolong tea polyphenols in colored soft drink wastewater by photo Fenton reaction. Water Sci Technol. 2011;63(9):1894-8.
Tokumura, M., Sekine, M., Morito, Y., & Kawase, Y. (2011). Decolorization and mineralization of Oolong tea polyphenols in colored soft drink wastewater by photo Fenton reaction. Water Science and Technology : a Journal of the International Association On Water Pollution Research, 63(9), 1894-8.
Tokumura M, et al. Decolorization and Mineralization of Oolong Tea Polyphenols in Colored Soft Drink Wastewater By Photo Fenton Reaction. Water Sci Technol. 2011;63(9):1894-8. PubMed PMID: 21902028.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Decolorization and mineralization of Oolong tea polyphenols in colored soft drink wastewater by photo Fenton reaction. AU - Tokumura,M, AU - Sekine,M, AU - Morito,Y, AU - Kawase,Y, PY - 2011/9/10/entrez PY - 2011/9/10/pubmed PY - 2011/9/29/medline SP - 1894 EP - 8 JF - Water science and technology : a journal of the International Association on Water Pollution Research JO - Water Sci Technol VL - 63 IS - 9 N2 - The decolorization and the mineralization of the colored soft drink wastewater including Oolong tea polyphenols by the photo Fenton reaction have been investigated. The decolorization of the colored soft drink wastewater including Oolong tea polyphenols by the photo Fenton reaction could be divided into 3 phases. Just after H2O2 was added to the solution, the color of the solution immediately increased from absorbance of 0.247 to 0.711 at the wavelength of 400 nm, which was defined as the 1st phase. Subsequently the significant decolorization by the photo Fenton reaction occurred at the 2nd phase. Finally, complete decolorization (the color attributed to the color of Fe3+) could be achieved in 180 min at the 3rd phase. The instantaneous and considerable color increase at the 1st phase could be attributed to the formation of intermediate colored compounds like quinones and soluble iron complexes produced by the Fenton reaction. About 95% mineralization of model colored soft drink wastewater with 229 mg L(-1) initial TOC concentration was achieved after 165 min. SN - 0273-1223 UR - https://www.unboundmedicine.com/medline/citation/21902028/Decolorization_and_mineralization_of_Oolong_tea_polyphenols_in_colored_soft_drink_wastewater_by_photo_Fenton_reaction_ L2 - https://iwaponline.com/wst/article-lookup/doi/10.2166/wst.2011.405 DB - PRIME DP - Unbound Medicine ER -