VISIBLE LIGHT DEGRADATION OF BLUE LEVAFIX DYE USING FENTON & PHOTO-FENTON PROCESSES

Authors

  • Hajar LAMKHANTER Hassan First University of Settat, Faculty of Sciences & Techniques, IMII laboratory, SED Team, box 577 Settat, Morocco.
  • fatima zahra ANKOURI Hassan First University of Settat, Faculty of Sciences & Techniques, IMII laboratory, SED Team, box 577 Settat, Morocco.
  • lamia ELAYAZI Hassan First University of Settat, Faculty of Sciences & Techniques, IMII laboratory, SED Team, box 577 Settat, Morocco.
  • Hafida MOUNTACER Hassan First University of Settat, Faculty of Sciences & Techniques, IMII laboratory, SED Team, box 577 Settat, Morocco.

Keywords:

Wastewater, Dye, AOPs, Fenton, Photo-Fenton.

Abstract

   Artificial dyes are universally used in industrial sector for their chemical stability and the easiness of their fabrication. The presence of those micropollutants in water sources poses a real threat for natural ecosystem and human health. The conventional processing are limited methods to deal with wastewater contamination. Moreover, Advanced Oxidation Processes (AOPs), based on generation of hydroxyls radicals, are effective for the destruction of those toxic chemical compounds.

In the present work, we investigate the Fenton and Photo-Fenton processes efficiency on the degradation of Blue levafix dye, as a possible alternative for wastewater treatment. The effect of irradiation intensity, initial dye concentration, initial pH of solution, concentration of iron, nitrate and organic matter have been studied. All irradiation tests were achieved at 365 nm using high-pressure mercury lamp (Philips HPW, 125 W). Blue levafix dye discoloration kinetic was monitored by UV-Vis spectrophotometer analysis at a maximum wavelength of 613 nm. Therefore, under acidic pH condition it seems that Fenton and Photo-Fenton processes were able to eliminate 98% and 99% of pollutant respectively. In addition, a reaction of inhibition has been observed in the presence of Iron at high concentration.

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Published

06-07-2022

Issue

Vol. 5 No. 1 (2021)

Section

Reseach Article

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