Degradation of wheat straw black liquor by Fenton and photo-Fenton processes

Francesc Torrades, Samuel Saiz, José Antonio García-Hortal, Julia García-Montaño

    Research output: Contribution to journalArticleResearchpeer-review

    15 Citations (Scopus)

    Abstract

    The degradation of wheat straw black liquor (WSBL) by using Fenton's reagent is investigated. Also, the use of irradiation providing the conditions needed for the occurrence of photo-Fenton's reaction, along with the main parameters that govern the complex reactive system have been studied. Concentrations of Fe(II) between 20 and 1,000 ppm, and H2O 2 between 500 and 2,000 ppm were chosen. The best results were obtained when using 1,500 ppm H2O2 and 200 ppm Fe(II) [12:1 molar ratio of H2O2/Fe(II)]. The use of Fenton's and photo-Fenton's reactions has been proven to be highly effective for the treatment of such a type of wastewaters; and accordingly, the high levels of chemical oxygen demand (COD), aromatic content (UV254), and lignin content (UV280) removal. © Mary Ann Liebert, Inc. 2008.
    Original languageEnglish
    Pages (from-to)92-98
    JournalEnvironmental Engineering Science
    Volume25
    Issue number1
    DOIs
    Publication statusPublished - 1 Jan 2008

    Keywords

    • Aromatic content removal
    • Chemical oxygen demand removal
    • Fenton's and photo-Fenton's reactions
    • Lignin content removal
    • Wheat straw black liquor (WSBL)

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