Photocatalytic Removal of Water Emerging Pollutants in an Optimized Packed Bed Photoreactor Using Solar Light

Photocatalysis is an advanced oxidation process that is an environmentally friendly option and one of the most critical technologies in green chemistry today. This work studied the upscaling of photocatalysis as a suitable process for wastewater treatment to remove emerging pollutants. For this purp...

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Bibliographic Details
Published in:Catalysts 2023-06, Vol.13 (6), p.1023
Main Authors: Borges, M. E., de Paz Carmona, H., Gutiérrez, M., Esparza, P.
Format: Article
Language:English
Subjects:
Adsorption
Catalysts
Chemical reactions
ciprofloxacin
Climate change
Contaminants
Drinking water
emerging contaminants
endocrine-disrupting compounds
Global temperature changes
Laboratories
Light
Management
Medical research
Oxidation
Packed beds
packed-bed reactor
Personal grooming
Pharmaceuticals
Photocatalysis
Photocatalysts
Photodegradation
Pollutants
Purification
Radiation
Sewage
Solar radiation
Titanium dioxide
Ultraviolet radiation
Veterinary medicine
Wastewater
Wastewater treatment
Water
Water pollution
Water treatment
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Summary:Photocatalysis is an advanced oxidation process that is an environmentally friendly option and one of the most critical technologies in green chemistry today. This work studied the upscaling of photocatalysis as a suitable process for wastewater treatment to remove emerging pollutants. For this purpose, unsupported and supported TiO2 photocatalysts were tested in the photodegradation of ciprofloxacin as a model molecule of an emerging wastewater component, using visible, UV radiation, and solar light. The suitability of TiO2 as a photocatalyst to decompose ciprofloxacin was confirmed in batch photoreactor under Visible and UV radiation, with degradation rates up to 90% after 30 min of irradiation and low adsorption values. TiO2 as a photocatalyst coated in glass support material at the packed bed photoreactor showed good photoactivity for emergent contaminants degradation (95%) under solar radiation. It has been possible to verify that the photocatalytic reactor system constitutes a viable process for eliminating emerging contaminants through environmentally sustainable treatments. Our results corroborate the possibility of degrading emerging contaminants by solar radiation using a packed bed photoreactor, providing a more effective option from a practical and economical point of view for wastewater effluent treatments.
ISSN:2073-4344
2073-4344
DOI:10.3390/catal13061023