Advanced oxidation process for the removal of ibuprofen from aqueous solution: A non-catalytic and catalytic ozonation study in a semi-batch reactor

A1 Journal article (refereed)


Internal Authors/Editors


Publication Details

List of Authors: Soudabeh Saeid, Pasi Tolvanen, Narendra Kumar, Kari Eränen, Janne Peltonen, Markus Peurla, Jyri-Pekka Mikkola, Andreas Franz, Tapio Salmi
Publication year: 2018
Journal: Applied Catalysis B: Environmental
Volume number: 230
Start page: 77
End page: 90
eISSN: 1873-3883


Abstract

The concern on the availability of clean and safe fresh water and the
quality of recycled wastewater are important issues, which require a
suitable technology to restore the water quality. Pharmaceuticals in
waste water are not easily degraded by conventional water treatment
technology. Advanced oxidation processes have been applied to eliminate
traces of these compounds from aquatic environments. This study was
focused on the degradation of ibuprofen (IBU) in aqueous solutions by
catalytic and non-catalytic ozonation. Preliminary experiments were
conducted to optimize the ozone concentration in water and to
investigate other operation parameters. The operation parameters were:
temperature, stirring rate, gas flow rate, pH, and use of Spinchem
stirrer to reach higher concentrations of dissolved ozone. In general,
the initial concentration of IBU was 10 mg/L, and about 93% of IBU was
degraded after 4 h of ozonation under optimal conditions. Additional
experiments were carried out to investigate the benefit of applying a
solid catalyst. H-Beta and Fe-H-Beta type catalysts were immobilized in
the Spinchem rotating bed device. The catalytic experiments illustrated a
significant improvement in the degradation rate of IBU. The catalysts
were characterized by nitrogen adsorption- desorption, scanning electron
microscopy, transmission electron microscopy, X-ray powder diffraction
and FTIR.


Last updated on 2019-15-11 at 02:59