Environmental assessment of different photo-Fenton approaches for commercial reactive dye removal

Julia García-Montaño, Nilbia Ruiz, Iván Muñoz, Xavier Domènech, José A. García-Hortal, Francesc Torrades, José Peral

Research output: Contribution to journalArticleResearchpeer-review

78 Citations (Scopus)

Abstract

An environmental study using life cycle assessment (LCA) has been applied to three bench-scale wastewater treatments for Cibacron Red FN-R hetero-bireactive dye removal: artificial light photo-Fenton process, solar driven photo-Fenton process and artificial light photo-Fenton process coupled to a biological treatment. The study is focused on electricity and chemicals consumption, transports and atmosphere and water emissions generated by the different processes involved. Results show that the artificial light photo-Fenton process is the worst treatment in terms of environmental impact. On the other hand, both solar driven and coupled to biological photo-Fenton processes reduce significantly the environmental damage, although none can be identified as the best in all impact categories. The major environmental impact is attributed to the H2O2 consumption and to the electrical energy consumption to run the UVA lamp. An economic analysis of the different photo-Fenton processes has also been performed and the results are discussed together with those obtained from the environmental assessment. © 2006 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)218-225
JournalJournal of Hazardous Materials
Volume138
Issue number2
DOIs
Publication statusPublished - 16 Nov 2006

Keywords

  • Biological treatment
  • Economic study
  • Life cycle assessment
  • Photo-Fenton's oxidation
  • Sunlight
  • Textile reactive dye

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