Tags

Type your tag names separated by a space and hit enter

Sunlight, iron and radicals to tackle the resistant leftovers of biotreated winery wastewater.
Photochem Photobiol Sci. 2013 Apr; 12(4):664-70.PP

Abstract

Winery wastewater is characterized by high organic content consisting of alcohols, acids and recalcitrant high-molecular-weight compounds (e.g. polyphenols, tannins and lignins). So far, biological treatment constitutes the best available technology for such effluents that are characterized by high seasonal variability; however the strict legislation applied on the reclamation and reuse of wastewaters for irrigation purposes introduces the need for further treatment of the bioresistant fraction of winery effluents. In this context, the use of alternative treatment technologies, aiming to mineralize or transform refractory molecules into others which could be further biodegraded, is a matter of great concern. In this study, a winery effluent that had already been treated in a sequencing batch reactor was subjected to further purification by homogeneous and heterogeneous solar Fenton oxidation processes. The effect of various operating variables such as catalyst and oxidant concentration, initial pH, temperature and lamp power on the abatement of chemical oxygen demand (COD), dissolved organic carbon (DOC), color, total phenolics and ecotoxicity has been assessed in the homogeneous solar Fenton process. In addition, a comparative assessment between homogeneous and heterogeneous solar Fenton processes was performed. In the present study the homogeneous solar Fenton process has been demonstrated to be the most effective process, yielding COD, DOC and total phenolics removal of about 69%, 48% and 71% in 120 min of the photocatalytic treatment, respectively.

Authors+Show Affiliations

NIREAS-International Water Research Center, Department of Civil Engineering and Environmental Engineering, University of Cyprus, 20537, Nicosia, Cyprus.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

23069784

Citation

Ioannou, Lida, et al. "Sunlight, Iron and Radicals to Tackle the Resistant Leftovers of Biotreated Winery Wastewater." Photochemical & Photobiological Sciences : Official Journal of the European Photochemistry Association and the European Society for Photobiology, vol. 12, no. 4, 2013, pp. 664-70.
Ioannou L, Velegraki T, Michael C, et al. Sunlight, iron and radicals to tackle the resistant leftovers of biotreated winery wastewater. Photochem Photobiol Sci. 2013;12(4):664-70.
Ioannou, L., Velegraki, T., Michael, C., Mantzavinos, D., & Fatta-Kassinos, D. (2013). Sunlight, iron and radicals to tackle the resistant leftovers of biotreated winery wastewater. Photochemical & Photobiological Sciences : Official Journal of the European Photochemistry Association and the European Society for Photobiology, 12(4), 664-70. https://doi.org/10.1039/c2pp25192b
Ioannou L, et al. Sunlight, Iron and Radicals to Tackle the Resistant Leftovers of Biotreated Winery Wastewater. Photochem Photobiol Sci. 2013;12(4):664-70. PubMed PMID: 23069784.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Sunlight, iron and radicals to tackle the resistant leftovers of biotreated winery wastewater. AU - Ioannou,Lida, AU - Velegraki,Theodora, AU - Michael,Costas, AU - Mantzavinos,Dionissios, AU - Fatta-Kassinos,Despo, PY - 2012/10/17/entrez PY - 2012/10/17/pubmed PY - 2013/9/11/medline SP - 664 EP - 70 JF - Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology JO - Photochem Photobiol Sci VL - 12 IS - 4 N2 - Winery wastewater is characterized by high organic content consisting of alcohols, acids and recalcitrant high-molecular-weight compounds (e.g. polyphenols, tannins and lignins). So far, biological treatment constitutes the best available technology for such effluents that are characterized by high seasonal variability; however the strict legislation applied on the reclamation and reuse of wastewaters for irrigation purposes introduces the need for further treatment of the bioresistant fraction of winery effluents. In this context, the use of alternative treatment technologies, aiming to mineralize or transform refractory molecules into others which could be further biodegraded, is a matter of great concern. In this study, a winery effluent that had already been treated in a sequencing batch reactor was subjected to further purification by homogeneous and heterogeneous solar Fenton oxidation processes. The effect of various operating variables such as catalyst and oxidant concentration, initial pH, temperature and lamp power on the abatement of chemical oxygen demand (COD), dissolved organic carbon (DOC), color, total phenolics and ecotoxicity has been assessed in the homogeneous solar Fenton process. In addition, a comparative assessment between homogeneous and heterogeneous solar Fenton processes was performed. In the present study the homogeneous solar Fenton process has been demonstrated to be the most effective process, yielding COD, DOC and total phenolics removal of about 69%, 48% and 71% in 120 min of the photocatalytic treatment, respectively. SN - 1474-9092 UR - https://www.unboundmedicine.com/medline/citation/23069784/Sunlight_iron_and_radicals_to_tackle_the_resistant_leftovers_of_biotreated_winery_wastewater_ L2 - https://doi.org/10.1039/c2pp25192b DB - PRIME DP - Unbound Medicine ER -